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ioSafe R4 Frequently Asked Questions
Pre-SalesWhat is the advantage of using X-RAID over RAID 5?The ioSafe R4 systems support both RAID levels. RAID 5 is an industry-standard RAID level whereas X-RAID is a NetGear patented RAID technology that simplifies and automates the RAID management process. X-RAID utilizes a one-volume technology with built-in volume expansion support, either by adding more disks or by replacing existing disk with larger capacity disks. For instance, you can start out with one disk, and add up to 3 more disks when you need more capacity or when you can afford them. Volume management is automatic. Add a 2nd disk, it becomes a mirror to the first, providing protection from a disk failure; add a 3rd, the capacity doubles; add a 4th, and your capacity triples – the expansion occurring while maintaining redundancy.
X-RAID also provides further expansion capability. At a future point in time, each disk can be replaced one by one, have it finish rebuilding, and after the last disk is replaced, your volume automatically expands utilizing the new capacity. This future-proof technology allows you to continuously expand as higher-capacity disks become available. Performance-wise, X-RAID is optimized for larger sequential access request pattern, such as video streaming and editing. Performance over RAID 5 in large data transfer can be as much as 15-20% better. When would it be appropriate to use RAID 5?Where X-RAID excels at large sequential transfers, RAID 5 performs better in smaller random access request pattern, fitting better in most office environments. Full volume management is available when you select RAID 5 (or Flex-RAID) mode. You can delete the existing volume and recreate one or more volumes, with each volume with different snapshot space and quota specification. You also have the flexibility of assigning an unused disk as a hot spare, allowing for the standby drive to kick in to replace a failed disk, minimizing the time where you may be vulnerable to a second disk failure.
In the future when you need more capacity, you can replace each disk one by one, and when the last disk is replaced, you can create another volume utilizing the new available space. This is in contrast to X-RAID where the single volume expands over the new space. What is the volume capacity when installing disks of different sizes?Volume capacity will be limited by the smallest disk. For example, if you are installing one 250GB drive and three 750GB drives, your data volume capacity will be limited to 250GB on each of the four disks. In Flex-RAID mode, you can utilize the leftover space on the 3 750GB disks by creating another data volume (3 x 500GB). With X-RAID, if you replace the single 250GB disk with a 750GB disk, your capacity will automatically expand, utilizing all 750 GB from each of the 4 disks.
Will ioSafe provide data recovery service if needed?ioSafe will provide data recovery analysis and service for a fee. Each case will be vary in price based on time spent. ioSafe Support can provide an estimate after doing an analysis.
Does the ioSafe R4 support JBOD or some sort of non-RAID setup?the ioSafe R4 does not support JBOD, however, you can create a RAID 0 striped volume across all four disks or create a separate RAID 0 volume on each disk.
Does the ioSafe R4 support sleep mode?the ioSafe R4 supports the optional disk sleep mode. In this mode, disks will go on standby after a specified time of inactivity.
Does the ioSafe R4 support scheduled power on and off?The ioSafe R4 supports scheduled power on and off.
What is the maximum number of users and groups on the ioSafe R4?There is a limit of 32,000 users and 32,000 groups, however, depending on application, the ioSafe R4 will support from 1 to 20 concurrent users. For large video files, the ioSafe R4 can stream 4 HD-quality video without frame drops. For Microsoft Office-type applications, the ioSafe R4 will handle many more concurrent users.
Is there any limitation on filename length?Filename length is limited to 255 bytes. If filename contains only alphabet and numbers, this limitation is the same as most of client. However if filename contains Germanic umlaut, Chinese character, Kanji, etc., filename will be limited to less charactors. The maximum filename length will be 85 characters if filename cosists of only Chinese charactors.
What is largest file size that the ioSafe R4 will support?the ioSafe R4 will support up to 1TB (terabyte) file size. Some protocols, such as HTTP will have a limitation where maximum file transfer size can be much less.
What file system does the ioSafe R4 use? Can I read a disk from the ioSafe R4 on other machines?the ioSafe R4 uses Linux Ext2/Ext3 file system. A typical Linux distro can mount and access the data from the disks.
What is the ambient operating temperature range of the ioSafe R4?0-40C. The ioSafe R4 will gracefully shut down if hard disk temperature exceeds safe level.
Can I attach a tape drive to the ioSafe R4?No, however you can attach a tape drive to a PC and backup files from the ioSafe R4.
I am using the ioSafe R4 as primary storage, how do I backup my ioSafe R4?You can use the built-in FrontView Backup Manager to backup shares to a USB disk, another PC, or another ioSafe R4. Alternatively, you can use a PC, Mac, or Linux backup software to backup shares from the ioSafe R4.
What is the difference between the ioSafe R4 NV and NV+?First of all, the NV+ is an evolutionary running production change over the original NV. In retrospect, the NV itself was already improving through running production changes, and a lot of features we are introducing formally in the NV+ hardware had already started appearing in the latest batches of the NV, starting in August/September timeframe. So pretty much other than the LCD panel, the hardware on the NV+ is very much the same as the "rev B" NVs that we have been shipping. That said, I will post the improvement in the NV+ since the original NV which was introduced back in February this year. Keep in mind that the RAIDiator firmware runs across commonly across the ioSafe R4 family, so the software features remain the same.
Is SMB signing supported?Yes in almost all cases; however, it does degrade performance. The only case which does not support SMB signing at all is using the ioSafe R4 built-in backup manager, with the Windows (Timestamp) protocol.
Where can I find more information on the ioSafe R4?Please visit our ioSafe R4 Product Page.
Boot, Installation, and UpgradeHow can I properly shutdown the ioSafe R4?You can depress the power button on the front of the ioSafe R4 for about 5 secs until the disk LEDs start blinking, and then release. The shutdown process will take about 10 secs or so. Alternatively, you can shutdown from FrontView from the System / Shutdown page.
Can I update the ioSafe R4 firmware before doing the installing my disks?No, you need to have at least one disk installed before you can update to the new firmware. You can do a factory default with all your disks after the firmware has been loaded.
Can I mix disk models and sizes when installing the ioSafe R4?Yes you can, however, please note that the smallest capacity disk will be used to determine the overall size of your data volume. Also, your performance may be limited by the slowest of the disks.
Does the ioSafe R4 support SATA II hard disks?Yes, however, the ioSafe R4 will utilize the disks in SATA I (150MB/sec) mode.
How do I configure a RAID 1 or RAID 5 volume with a spare disk?After installation, delete the existing RAID volume and recreate it with one disk configured as a hot spare. Please be aware that X-RAID does not support hot spare.
How do I upgrade the ioSafe R4 firmware when the ioSafe R4 is not connected to the Internet?Download the ioSafe R4 firmware to your PC and perform a local update from FrontView.
How do I re-install the firmware?You can force a re-installation of the firmware from flash to the disk. This is helpful if you have lost your admin password and want to set it back to default, if errors in your network settings has made it impossible to connect to the ioSafe R4, or if you suspect that the operating system on your disk may somehow be corrupt. The firmware re-installation process will not touch your data volume.
Here are the steps:
The firmware installation will begin from that point. You can monitor the progress with RAIDar. You admin password will reset to 'iosafe1'. How do I install/remove an add-on?Simply download the add-on and upload it from FrontView System / Update / Local tab. You will need to reboot before the add-on is installed.
Some of the Add-on packages will not be removable after they are installed. Add-on packages that install a service can be removed from the Services tab. RAIDar is unable to find the ioSafe R4 on my network. How do I resolve this?
How do I reset my ioSafe R4 admin password?You can reset your ioSafe R4 Admin password by accessing http://ip_address_of_R4/password_recovery . If you have forgotten the password recovery answer, you will need to perform a firmware re-installation to reset the admin password.
How do I direct-connect between the ioSafe R4 and PC/Mac?
Note: If the ioSafe R4 is set for DHCP (default mode), it will appear as IP 192.168.168.168. How many data volumes does the ioSafe R4 support in Flex-RAID mode?the ioSafe R4 supports up to 4 data volumes, but each disk is limited to 2 data partitions.
How many data volumes does the ioSafe R4 support in X-RAID mode?X-RAID mode is designed as a single-volume system, so only one.
Why is my volume capacity is lower than expected?There are several things that factor into the usable capacity of your ioSafe R4 volume.
Raw capacity (GB = 1000^3) = 2000 Conversion to (GB = 1024^3) = 1862 Minus one disk for redundancy (-465) = 1397 Minus OS (10) = 1387 Minus RAID/Filesystem overhead (2%) = 1359 Minus snapshot reserved space (5GB) = 1354 Based on our calculation, the approximate usable capacity for a 4 x 500GB system is 1354GB. How do I replace a failed disk?You can take out the failed disk and replace it with a new disk while the ioSafe R4 is online (there's no need to shutdown the ioSafe R4). Make sure after taking out the failed disk, you wait about 30 secs before inserting the replacement. Once the replacement disk is in-place, the disk will be initialized and sync'd into the RAID volume.
How long does it take to sync a replacement disk?This depends on the size of the disk. Typically it'll take anywhere from an hour to several hours. You can monitor the progress in RAIDar or FrontView RAID Settings tab.
How do I switch between Flex-RAID and X-RAID mode?RAID 0, 1, and 5 are part of the Flex-RAID RAID levels. If you want to switch from this mode to X-RAID (expandable RAID), you will need to backup your data first, and then perform a factory default. During the factory default process, there will be a 10-minute window during the boot where you can use RAIDar to click the Setup and set the box to the desired RAID mode (Flex-RAID or X-RAID). RAIDar will prompt with "Click Setup" during this 10-minute period.
How do I migrate disks over from an existing ioSafe R4 to another?Never migrate disks if your volume is in degraded mode. Make sure the volume is redundant first. Then follow the steps below:
How do I add disks to an existing X-RAID volume?First, make sure the disk is at least as large as the smallest disk in the existing X-RAID volume. Then simply add the disk into the ioSafe R4. The ioSafe R4 supports drive hot-swapping so you can hot-add it while the ioSafe R4 is online.
The newly added disk will go through an initialization and sync phase. This can take several hours (e.g. 750GB disk can take about 7 hours). You will be notified by email after this is done, and you will need to reboot the ioSafe R4. Upon boot, your existing volume will either be made redundant if this is the 2nd disk, or your volume capacity will expand if this is your 3rd disk or higher. This is an offline process that can take several hours. You can monitor this with RAIDar, and you will receive an email when the process is complete. How do I expand an existing X-RAID volume with larger disks?Replace one disk at a time with a larger disk, letting it finish initializing and syncing after each replacement (this process can take several hours depending on disk capacity, but you can continue access to the ioSafe R4), and after the last disk has been replaced, reboot the ioSafe R4. The expansion will occur at boot time. The expansion time will depend on your existing volume size, the ending volume size, and the number of files in your volume. Typically, it'll take anywhere from an hour to several hours. You will be notified by email at each step of the process.
Keep in mind that when your replace your disks that the R4 supports drive hot-swapping, you do not need to shutdown the box before replacing the disks. Simply pull out the disk, wait at least 30 secs, and then add the replacement disk. Is it possible for the ioSafe R4 to restart when power is restored?The ioSafe R4 will restart automatically when power is restored.
RAIDar status said "Corrupted Root" during factory reset or installation. What should I do?First, make sure your memory DIMM is seated securely. It may have come loose during shipment. Otherwise, the flash image may be corrupted and will need to be restored. For NAND Flash based systems, please use TFTP Boot Recovery, for USB Flash or Compact Flash based systems, please use Raw-writer.
How do I perform a TFTP Boot Recovery?This is a complicated process. Please contact ioSafe Customer Service for assistance.
I've scheduled auto Power-On, but why is the ioSafe R4 not powering up automatically?You'll need to allow the ioSafe R4 to automatically power-down for the auto power-on to work. Manually powering off the ioSafe R4 overrides the automatic Power-On feature.
My shares are missing after the ioSafe R4 was rebooted. What should I do?
How do I reset the ioSafe R4 to factory default?Resetting the ioSafe R4 back to factory default will wipe out all configuration and data. Please understand this before continuing. If you choose to continue, here are the steps:
There will be a 10-minute window where you can use RAIDar to change the RAID mode and/or select the snapshot reserved space. RAIDar will prompt with "Click Setup". If you do not click Setup, the installation will begin with the default settings. Otherwise, it will begin when you've confirmed your selected option in RAIDar. You can monitor the installation progress with RAIDar. What is the FrontView default login and password after a factory default?The default login and password is 'admin' and 'iosafe1'. Please make sure you change the admin password after doing a factory default.
Will clients with non-jumbo frame network interfaces be able to access the ioSafe R4 if jumbo frames is enabled?Yes, the frame size will be negotiated down to the non-jumbo size with clients not supporting jumbo frames.
RAIDar shows the ioSafe R4 IP is 192.168.168.168 and cannot access NAS, why? and how to fix?This may happen when the ioSafe R4 is configured to obtain an IP address from the DHCP server, but DHCP server does not provide one. When this happens, correct the DHCP server problem, etc. and wait for the ioSafe R4 obtain a correct IP address from the Server. You can also remove and re-install the ethernet cable to re-initialize network after the DHCP server issue has been corrected.
This may happen in following situations.
When I use IE7 or Windows Vista, I get a security warning. How do I get rid of this?The ioSafe R4 uses a self-signed certificate. IE7 or Windows Vista will not trust this certificate unless you explicitly import this certificate by yourself. Below is brief procedure to import certificate.
Note for Vista Users: Windows Vista works differently than XP. When using Vista, you need to specify the ioSafe R4 as a "Trusted Zone". While walking through the "Certificate Import Wizard", you need to click "Place all certificates in the following store" radio button, and specify "Trusted Root Certification Authorities". (If you place a certificate in your personal store, IE will not trust it.) System boot seems to hang on a bad disk, how do I know which one is bad?If you suspect that one of disks is bad and hanging system boot, please follow these steps to quickly locate which one may be bad:
A high ATA error count usually means the disk is failing. Contact ioSafe Customer Service before taking furhter steps to correct this issue. How can I skip the Volume check?If your system has RAIDiator 4.0+ on it, and you are having issues with the Volume Check on boot up, it is possible to skip the volume check.
To do this, start with the system off, then turn it on, while depressing the power button for 5 seconds (1 long flash). If the ioSafe R4 system will not boot without skipping the volume check, Download all logs and contact ioSafe Customer Service for additional help How can I replicate my ioSafe R4 settings for a large deployment of systems?You may be in a position where you need to deploy a custom configuration (plus data) on the ioSafe R4 to a bunch of units fast. If this is the case, there is an undocumented but simple way you can do this, even if you have a thousand systems you need to replicate.
Expansion (X-RAID)How do I add capacity to my X-RAID volume?If you have less than 4 disks, simply add your disk(s) to the system, your ioSafe R4 supports drive hot-swapping. The newly added disk(s) must be at least the same size as the smallest existing disk. Note that you can add one or more disks at a time. You will be notified by email and through FrontView that the disks will be initialized (this can take several hours depending on the disk capacity). During the initialization phase, you can use the ioSafe R4 normally. Once the initialization is done, you will be notified to reboot the ioSafe R4. Upon reboot, the expansion process will occur (this can take several hours or much longer depending on your drive capacity and the number of files in your data volume). You can monitor the status via RAIDar. Upon completion, you will be notified that the volume has been expanded.
How do I expand my current 4-disk X-RAID volume?You will need to replace each of your disks, one at a time, with a larger one. Each time the disk is replaced, you will need to allow the disk to initialize and sync before continuing with the next disk. The initialization and sync process will take several hours or longer to complete depending on the capacity of your disk. The ioSafe R4 supports drive hot-swapping, so you can replace each disk online. Once all the disks have been replaced, reboot the ioSafe R4 to start the expansion process. This will take several hours or longer to complete depending on the volume capacity and the number of files in your volume. Do not interrupt the process during this time. Once completed, you will be notified of the new volume size.
What happened if I add a larger disk to my current 2- or 3-disk X-RAID volume?The expansion will still occur, but the expansion size will be limited by the smallest disk in the system. When you replace each of the smaller disks with the larger disk capacity, X-RAID will expand itself to utilizing all the space from these larger disks.
What should I do if X-RAID expansion fails?If X-RAID expansion failes, we advise you to contact ioSafe customer support immediately, provide the system logs and the steps you took to expand your X-RAID volume. Do not try to fix this problem yourself as you may create a 2-disk failure condition that will make data recovery impossible.
PerformanceWhat performance can I expect with jumbo frames enabled?In our performance lab, using IOMeter in sequential read/write test with the ioSafe R4, we can achieve 30 MB/sec on reads and 24 MB/sec on writes. This is using a Dell 2.8GHz PC running Windows XP Pro.
What transfer speed can I expect when reading and writing large files like CD or DVD images to/from the ioSafe R4?The transfer speed should be similar to what you would get with the above IOMeter test, except that you would have to take into account the read speed from your PC hard disk as well.
How do I improve write speeds of USB External Drive attached to the ioSafe R4?You can enable the Fast USB Write option in the Performance tab. You will need to properly unmount the USB disk if you select this option; otherwise, you should run a file system check on the disk before accessing it next time. With RAIDiator 3.00+, you can use the front Backup button to unmount and mount a USB disk. Depressing the Backup button for 5 seconds until the disk LEDs blink will unmount a mounted disk or mount an unmounted disk.
I'm getting poor performance with my Mac. Is there anything I can do?Try setting TCP delay_ack to 0. Default is 3, which causes handshake problems with the ioSafe R4, causing severe performance penalty. You can set the delay_ack with the following command from the OS X terminal:
sudo sysctl -w net.inet.tcp.delayed_ack=0 If you want the setting to stick when you reboot, add the line to /etc/sysctl.conf. For reference, see: http://julipedia.blogspot.com/2006/02/samba-performance-under-mac-os-x.html http://mail-index.netbsd.org/tech-net/2003/01/28/0004.html The ioSafe R4 stalls while downloading file via FTP or HTTP/S. What can I do?The optimization performed on the ioSafe R4 may adversely affect compatibility with some routers. To turn off this optimization, and thus provide better compatibility, change the MTU setting on the ioSafe R4 FrontView Network tab to 1492 (default=1500).
I'm getting poor performance with Windows Vista. Is there anything I can do?Here are some things you can try to improve Vista performance:
ServicesHow do I restart services?If you need to restart a service such as NFS, go to the Services tab, unselect the checkbox next the service, Apply the change, re-select the checkbox, and Apply the change again. Disabling and re-enabling the service has the same effect as restarting the service.
Share Access and PermissionHow can I access private user home shares?The private user home shares are available over CIFS or AFP.
In User security mode, can ioSafe R4 User A access the content of ioSafe R4 User B's home share?Users are restricted from accessing each other's home share. Only the Admin has access to other user home shares. If you want users to have mutual access privilege, create a public share, and set access restrictions so only these users have access to the share.
I logged in as admin, but why don't I see any private home shares for my users?The home shares are created the first time users access the ioSafe R4. If a user has not logged in yet, then his home share will not have been created yet.
How can I disable private home shares?The option is available in the Accounts / Preferences tab.
How can the admin user access private home shares?Access the ioSafe R4 over Explorer as admin user and the home share containing all user private shares is available.
How do I delete files under the current share in User security mode?In order to delete files under the current share in User mode, the following conditions must be met:
Why am I not able to delete certain files and folders?In Windows, right click on the file. Then select Properties, and Security. Verify that the user has the proper permissions to delete the file. If not, connect to the share as user admin and delete the files and folders using the admin privilege.
Sweeping changes to the ownership and permissions of the contents of a share can be made with the Advanced Options tab. Why is WebDAV not working on my Windows XP box?Try appending the pound (#) sign to the end of the URL like this: http://$mynas/$myshare/#
Also take a look at our accessing ReadyNAS remotely with WebDAV how-to. How can I move files from share to share on the ioSafe R4 without going over the network?You can setup a backup job between two shares.
My share's default access is set to read/write but why am I still unable to read or write to a file?In Windows, right click on the file, then select Properties, and Security. Verify that the user has the proper permissions to read from or write to the file.
How do I get the ioSafe R4 shares to automatically appear on my Windows PC on startup?You can create a batch file with the following contents:
net use e: \$hostname\$sharename $password /u:$sharename /persistent:no and place it in your Startup menu. You can als use "Map Network drive" under the "Tools" menu in File Explorer , and check "Reconnect at login" option. When you are using Windows Vista, "Map Network drive" GUI menu is at right-click on Computer in Start menu. You can also map sub-folder to drive. If you want to mount entire share to drive, you just need to right click on the sahre and select "Map Network Drive...". How and when do I use the Advanced Options tab?The Advanced Options tab can be used to change the ownership and permissions of the contents of the share. Keep in mind that these options are meant for advanced users and can cause access problems if used improperly.
What file system should I use on my USB drive?Since NTFS support is Read-only (Note: RAIDiator v4 firmware allows write access to NTFS file systems), you can use either Ext3 or FAT32. Ext3 allows for better retention of file ownership and permission and may be more appropriate in a mult-user backup environment.
If I use Ext3 on my USB drive, how can I read the drive on my PC or Mac?You can download an Ext3 driver for Windows at: http://www.fs-driver.org/.
Ext3 driver for OS X can be downloaded at: http://sourceforge.net/projects/ext2fsx/. How can I disconnect from a share from Windows?From the command line, run
net use /delete z: (Replace "z" with the drive letter you wish to disconnect)You can als use "Disconnect Network Drive..." GUI. In the "Start" menu, right click on "My Network Places" (WinXP) or "Network" (WinVista), and select "Disconnect Network Drive...". When I initially connect to a share, there is a long delay. How can I fix this?There are occasions where Windows' behavior of trying to connect using WebDAV first before SMB/CIFS causes a long delay. The easiest way to fix this is to just disable the WebClient service in Windows. You can do this from Windows by going to Control Panel -> Administrative Tools -> Services. From there, open the WebClient service, stop it, and also select the option to disable it at startup.
Why am I not able to access an ioSafe R4 share that is password protected with Vista?When accessing a file share on a remote computer or device, Windows Vista will refuse to send your password using older encryption methods.
Unfortunately, many NAS devices as well as older versions of linux do not understand the newer encryption methods. This keeps you from being able to access these devices. The solution is to force Windows Vista to use the older encryption methods. To do that, follow these steps: Users of Windows Vista Home Basic and Home Premium Click start Type: regedit Press enter In the left, expand these folders: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ In the left, click on the folder named: Lsa In the right, double-click "LmCompatibilityLevel" Type the number 1 and press enter Restart your computer. Users of Windows Vista Business, Enterprise, and Ultimate Click Start Click Control Panel Click System and Maintenance Click Administrative Tools Double-Click Local Security Policy In the left pane, click the triangle next to Local Policy In the left pane, click Security Options In the right pane near the bottom, double-click "Network security: LAN manager authentication level" Click the drop-down box, and click "Send LM & NTLM - use NTLMv2 session security if negotiated" Click OK. Why won't rsync retain my UIDs/GIDs?To maintain access compatibility with other protocols, rsyncd will transfer files as the share user in Share security mode. This means that files transferred to the NAS over rsync will be owned by the share user. To maintain UIDs/GIDs, use User security mode, or NFS mount the share with root-enabled hosts properly set in the NFS configuration tab in Frontview and do a pseudo-local rsync.
Remote Access over WANHow can I setup port-forwarding to the ioSafe R4?Port-forwarding is a way of selectively allowing access from a WAN (Internet) to your LAN through your existing router firewall. Only the network protocol "ports" that you forward will be allowed access to a particular box on your LAN. For instance, if you want to enable only FTP access to your ioSafe R4, simply forward ports 20 and 21 on your router to the ioSafe R4 IP. You can do the same for HTTP or HTTPS by forwarding ports 80 and 443.
Each router will have a slightly different method to allow this option. Here's a link that explains how you would do this with a lot of the routers on the market. This link courtesy of MrCyberdude. http://www.portforward.com/english/routers/port_forwarding/routerindex.htm How can I setup my ioSafe R4 for FTP access over the Internet?You need to configure your router for port forwarding. Ports 21 and the passive port range, which can be configured in the Services tab, must be forwarded to the ioSafe R4 IP address. Also set the "Masquerade as" setting to your external IP address or domain name.
How do I setup the ioSafe R4 for anonymous FTP in non-Share security mode?In the Services page, select Anonymous for FTP mode. Note that Anonymous FTP is the only mode available in Share mode.
I can log into the ioSafe R4, but when I try to transfer files, the transfer rate almost immediately goes to 0 and eventually times out. What's wrong?Try changing the MTU on your router to 1492. This is often needed when the ioSafe R4 is connected to the Internet through a Cable-based broadband service.
How can I access my ioSafe R4 through FTP when my ioSafe R4 is behind my home firewall and my client is behind my school/work/etc. firewall?You will need to setup the ioSafe R4 for passive (PASV) FTP. To do this, go to the Services page and setup the options under FTP. In this case, you will need to select a passive port range (in most cases, a small range of 10 to 20 ports will do) and forward it from your router to the NAS. You will also need to enter your public domain name or IP address in the Masquerade field.
For more information on passive FTP, go here: http://slacksite.com/other/ftp.html I get errors when I try to issue FTP commands. My logs mention extended passive mode.Try forcing your FTP client to use active (PORT) or standard passive (PASV) mode. Extended passive (EPSV) is only needed to IPv6 networks, and is not supported by the ioSafe R4.
I can't seem to access certain files and directories in my FTP share.Depending on the security mode and FTP mode, you may need to adjust the permissions on these files and folders to permit access through FTP. In Share mode or Anonymous FTP mode, the NAS will see an FTP user as a user named "ftp". Therefore, files and folders will need to be accessible by this user for them to be accessible via FTP. The easiest way to allow access to a file or folder is to go into Windows, right click on the file and select Properties, then select the Security tab, and add the required permissions to the "Everyone" setting.
In User-based FTP mode (available in User and Domain security modes), the NAS will see the ftp user as whichever user's credentials you used to login. Therefore, if you logged in as user "ewok", the NAS will see you as "ewok" and will allow you to access files and folders that are accessible by "ewok" when mounting the share in Windows. I can access my ioSafe R4 over FTP using an FTP client, but not with Internet Explorer.Try putting your internal or external IP address (depending on whether you will be accessing the NAS from a server on your local network or through the Internet) in the Masquerade As field in the Services page.
BackupWhat's the difference between Windows Timestamp and Archive Bit backup?Timestamp backup uses the file timestamp to determine if incremental backup should include the source file or not. The source file will be copied only if the timestamp on the file is later than that on the destination.
Archive Bit backup is similar to how Windows perform its backups and is the preferred method for backing up Windows. It uses an archive bit for each file to determine if the file has been backed up already or not. Once the file has been backed up, the archive bit gets cleared, so the file will not be included in future backups. What is the requirement for using Archive Bit backup mode?While the Archive bit backup type is the preferred type for Windows backups, the need to modify the archive bit on the source leads to three requirements. If they cannot be met, the Timestamp method should be used instead.
How do I resolve the "access denied" error during a Backup using the FrontView Backup Manager?Verify that you are able to access the backup source share over the selected protocol and using the credentials you entered when configuring the backup job.
I cannot backup my data from the ioSafe R4 share folder to the attached USB hard disk. What should I do?
How do I setup two ioSafe R4 units to mirror each other with the built-in backup manager using the rsync protocol?Enable rsync access for the shares to be mirrored on both ioSafe R4 devices. Then, on each ioSafe R4, create a backup job using the remote share as the source, and the local share as the destination. Schedule these jobs so that they do not run at the same time.
How do I backup users' private home folders in Domain security mode?Select Home Share as the backup protocol, and then enter the name of the user in the field under the protocol dropdown list.
How do I resolve the FTP timeout issue during the backup? What is the current ftp time out setting on the ioSafe R4?The backup manager will timeout on attempts to access an FTP server after 270 seconds. If the connection is still timing out, try accessing the remote server at a less busy time. Also, try connecting to the remote FTP with an FTP client to verify that it is available.
How can I backup Windows shares with files with foreign characters in their names?Use the Windows (Archive Bit) backup protocol which will handle foreign characters without a problem.
I cannot use Umlaut characters in backup path.By default, the backup path name can contain only English ascii characters. In order to allow other characters in this feild, you need to enable "Allow Unicode for user, group and share names" option in FrontView's System/Language tab. This option is available only when Language is set to Unicode. Once this option is enabled, all Unicode characters can be used including Germanic Umulaut, Cyrillic characters, Chinese characters, etc.
How should I backup my ioSafe R4 to another ioSafe R4?Use the rsync protocol in the backup manager to transfer the files from one ioSafe R4 to another. Rsync can also handle incremental backups efficiently. If several shares need to be backed up, create a separate backup job for each share.
How do I backup an entire drive on a Windows PC to a share on the ioSafe R4?Put a dollar sign ($) at the end of the share name. For example, if the D: drive is being shared on the Windows machine, the source path would be: //$machine/D$
My backup failed because of an "unknown error".Try searching the backup logs for lines starting with the word "cp:". The error message in these lines will give you some clues.
How can I download a copy of the entire backup log?Use the Download All Logs link.
Backups using the built-in backup manager are failing with Windows 2003 Server sources. Why?You must use the Windows (Archive Bit) protocol to back up from a Windows 2003 system. If you do not use the Windows (Timestamp) protocol, you will need to make sure that SMB signing is disabled on the Windows 2003 Server machine.
Windows Domain and Active DirectoryThe ioSafe R4 failed to authenticate with the domain controller. What should I do?In most cases, this comes down to a DNS problem. You'll need to make sure that the ioSafe R4 is configured to resolve DNS from a properly configured DNS server. The easiest way is to run the DNS service on the domain controller. For NT4-style domains, make sure you are joining using an account with proper credentials for joining the domain.
How many domain users can the ioSafe R4 handle?The ioSafe R4 can handle up to 30,000 user + computer accounts, and up to 30,000 group accounts. Please note however that the web-based FrontView management utility will behave slowly when there are more than two thousand domain users.
Our domain user(s) can not login to the ioSafe R4. What should I do?
How do I change the file and folder permissions on an ioSafe R4 that is attached to the domain controller?You can use Windows ACLs to do this -- right-click on a file, select Properties, then the Security tab. From there, you can set the permissions as desired. Most Windows operating systems will have this feature. Some, such as Windows XP Home, do not. To get the Security option to show under properties, you may need to uncheck the "simple file sharing" option in the Folder Options/View menu.
How do I access the user home folder on the ioSafe R4?You can access the user home shares over CIFS or AFP.
Can I change the name of the ioSafe R4 after it has already joined an Active Directory Domain?Yes, but you will need to rejoin the domain.
How come data copied to the ioSafe R4 does not maintain all the ACL permissions?Windows does not preserve ACLs when dragging files over the network, regardless of whether the target is an ioSafe R4 or a Windows server. To preserve ACLs, you can use xcopy /o from the command prompt.
Why am I not able to create users in the ioSafe R4 after joining Domain?All account management is handled on the domain controller.
Under the Domain security mode, each time users access the ioSafe R4, it keeps asking for a login name and password. How can this be prevented?It's likely the system clocks on the ioSafe R4 and the domain controller are not sync'd. It is recommended that a common NTP server be used to keep the clocks in sync.
After joining the ioSafe R4 to a Domain Controller, the ioSafe R4 does not list users and groups under account tab. How do I fix this?Make sure your DNS and the ADS realm address settings are correct.
Mac / OS XHow well does the ioSafe R4 work in a Mac environment?Macs are well-supported via AFP, CIFS and NFS protocols. There is an active Mac user gathering on this Forum.
Why is RAIDar not detecting my ioSafe R4?Check if your Mac is blocking UDP traffic. Go to System Preferences - Sharing - Firewall - Advanced. If you are, uncheck it and press OK and you should now be able to use RAIDar to find your ioSafe R4.
Which share protocol is the best for MAC users with the ioSafe R4?Mac users typically prefer AFP over CIFS due to better support for extended character sets and better resource fork handling. Some prefer CIFS due to better forced compatibility with Windows users. Performance-wise, AFP and CIFS provide excellect throughput, with AFP providing faster searches via the Finder.
How do I access an ioSafe R4 share with a Mac?If you will be using AFP, from the Finder, select Go - Network - My Network - AFP on Hostname. If you will be using CIFS/SMB, from the Finder, select Go - Network - Workgroup - Hostname. Another option is Go - Connect to Server - Enter server address. This can be used to connect using SMB, AFP or NFS by entering the protocol then the IP of the NAS (e.g. smb://192.168.168.168, afp://192.168.168.168, nfs://192.168.168.168/sharename).
I'm getting poor performance with my Mac. Is there anything I can do?Try setting TCP delay_ack to 0. Default is 3, which causes handshake problems with the ioSafe R4, causing a severe performance penalty. You can set the delay_ack with the following command from the OS X terminal:
sudo sysctl -w net.inet.tcp.delayed_ack=0 If you want the setting to stick when you reboot, add the line to /etc/sysctl.conf. For reference, see: http://julipedia.blogspot.com/2006/02/samba-performance-under-mac-os-x.html How do I make Time Machine work with the ioSafe R4?Please see the Making Time Machine work with the ioSafe R4 article on the ReadyNAS homepage.
HardwareWhat does this light pattern mean? (LED)What is the maximum drive size that the ioSafe R4 supports?The ioSafe R4 supports up to 1TB disks as of this time.
Is there a way I can verify if my memory is good?Starting with RAIDiator 3.01, there is comprehensive memory test that you can run on the ioSafe R4. To invoke it, power-down the ioSafe R4 and depress the front power button, until you see all disk LEDs blink together for the 5th time (ignore the quick flash at the beginning). Disks will blink for about a second at about the 5-, 10-, 15-, 20-, and 25-sec mark. Release at that point. The first disk LED will come on to signify the first of an 8-stage memory test. The LED sequence for the 8 stages will be in binary format going from left to right. When all disk LEDs are lit, the memory is good. If the first and second LED blink, followed by the 3rd and 4th LEDs, in alternating pattern, the memory is bad.
Please keep in mind that the success rate for flagging an actual bad memory is about 85%, so we do recommend that you run this test twice. Can I attach a USB 2.0 Hub to the ioSafe R4 USB Port?Yes. Bus powered hubs can cause power issues and require special attention.
Are USB multi-reader devices supported on the ioSafe R4?Currently multi-readers are not supported.
Can I attach two or more USB Printers to the ioSafe R4?Yes, you can attach multiple USB printers to the ioSafe R4.
I'm having printing problems with Windows XP. What can I do to get printing to work?Ever since Windows XP SP2, some printer drivers really slowed down with Windows Printing. If you have have one of those printers/drivers, a nice workaround is to use IPP instead of Windows Printing. An easy way to setup IPP Printing is by downloading Bonjour for Windows from Apple's website, and just follow the wizard as it discovers and sets up IPP.
You don't actually need Bonjour for Windows to use IPP, since Bonjour is nothing more than a discovery service. To use IPP Printing without Bonjour, try: Control Panel -> Printers -> Add Printer -> Network Printer. Then click on the button that says something about connecting to a printer on the internet. For URL, use "http://[nas]:631/printers/[printer_share_name]". As an added benefit, it should be *much* faster than Windows printing. What devices can I attach to the ioSafe R4 USB ports?You can attach printers, external hard disks, flash devices, UPS, USB hub, and wireless adapters. Please see the Hardware Compatibility List for the complete list of devices.
Why is my USB drive not being detected?Please check if your drive is listed in the Hardware Compatibility List. It may be using a chipset that may be currently incompatible with the ioSafe R4. If your drive is a 3.5" disk, please use an AC adaptor instead of getting power from USB bus.
Can I attach the ioSafe R4 to a USB port on the PC?The ioSafe R4 will not work as a target USB device.
What do I need to do to get UPS alerts and proper shutdown on battery low condition?Simply refer to the Hardware Compatibility List for a compatible UPS and plug the USB monitoring cable to the ioSafe R4. FrontView will detect that your UPS is detected, and any UPS alerts will be automatically sent to the Alert contact list. Upon battery-low condition, the ioSafe R4 will power down gracefully.
Why do my disks not spindown?First, make sure the ioSafe R4 has been updated to the latest RAIDiator 3 or later release. Earlier RAIDiator releases do not support disk spindown. Next, disable services that you don't need -- UPnP is one such service that might prevent your disks from spinning down.
The hard disks in the ioSafe R4 are reporting high SMART Raw Read Error Rate, Seek Error Rate, and Hardware ECC Recovered. What should I do?Seagate uses these SMART fields for internal counts, so this is a known issue with Seagate disks. Look for abnormal counts in other fields, especially Reallocated Sector Ct and ATA Error Count.
Can I use a serial-to-USB converter from a serial port-only UPS to the ioSafe R4?No, unfortunately the signals do not map correctly for the UPS driver with the converter cabling.
Can I use the 2nd ethernet port on the ioSafe R4 for load-balancing / teaming?No, the second port is available so the ioSafe R4 can be accessed from 2 physically seperate networks.
Add-onsHow do I use the BitTorrent Download Manager?Please see the Using the BitTorrent Download Manager article on the ReadyNAS homepage.
What BitTorrent client is on my ioSafe R4?the ioSafe R4 BitTorrent client will appear as "BitTorrent SDK 2.0" to other clients.
The BitTorrent SDK for Devices is the official BitTorrent release for embedded devices representing the latest in BitTorrent protocol enhancements and compatible with all standard PC clients. How do I share photos with ioSafe R4 Photos?Please see the Sharing your photos with ioSafe R4/ReadyNAS Photos article on the ReadyNAS homepage.
How do I troubleshoot ioSafe R4 Photos problems?Please visit this forum thread for ioSare R4/ReadyNAS Photos troubleshooting tips.
MiscellaneousHow do I send in a Support request?Contact ioSafe Customer Service.
ioSafe Remote Access PolicyAcknowledgement of agreement to following term is required before any ioSafe personnel will access and attempt to fix any ioSafe system remotely.
I hereby authorize support personnel or authorized representatives of ioSafe, Inc. and its subsidiaries and affiliates (collectively, ioSafe) to gain remote access of my ioSafe equipment to help diagnose and repair operational problems. I understand that such support action cannot be guaranteed of its success and may yield partial or total data loss. I also understand that ioSafe will have access to any and all data, including personal or confidential information, that might reside on my ioSafe equipment. ioSafe will attempt to keep such information confidential. By allowing the remote access, I agree to hold ioSafe and its representatives harmless of any wrongdoing or negligence of any kind. I agree to hold ioSafe and its subsidiaries and affiliates, and their employees, consultants and representatives, harmless and release them from any liability, wrongdoing or negligence of any kind. In no event will the liability of ioSafe arising out of its actions to attempt to remotely access, test and/or repair your equipment exceed one US Dollar. Any dispute with respect to the above provisions shall be subject to binding arbitration in Auburn, California USA and the prevailing party shall be awarded its expenses for such action, including attorney fees. After reading and agreeing to the terms, email "Yes, I have read and hereby agree to the terms of the ioSafe Remote Access Policy" to customerservice@iosafe.com. How do I send all logs?Sometimes your logs may be requested to help troubleshoot a problem on your ioSafe R4. To do this, do the following:
What port does RAIDar use?22081/udp
How do I install the rack mount kit?WebDAV file size limitationThe current firmware has a 2GB file size transfer limitation.
Software IncompatibilitiesThere have been reports that BitDefender anti-virus software's active scanning feature may interfere with certain programs' ability to save files to the ioSafe R4 over SMB. An example of such a program is AutoCAD.
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