Frequently Asked Questions
Q: What should I check if the XenData Archive Series service does not start?
A: Check the Windows event log. The XenData Archive event log can be found under Applications and Services Logs. Here you will find details about the cause of the start failure.
Q: Can I make replicas of my data?
A: XenData software has the facility, on LTO, to make multiple copies of the same data, on replicated tape media. The replicated media can then be exported from the library or drive, and stored elsewhere. This means your replicas are not using space in your library. Unfortunately, on ODA we currently do not have that ability. With ODA, we recommend that the MAM software is set up to write the data to two locations.
Q: The system is reporting no space, why is this?
A: By default, the XenData software reports the free space of the available writable cartridges. If you have no writable cartridges, because you have run out of blanks or the current writable cartridge is in alert, then you will see no free space. If the current writable cartridges are in alert, you can right click on it and select ‘reset alert’. If that does not work, you can add a new volume. With a new volume added you can continue working. We would suggest at that point you should contact our support team to investigate why there is an alert volume.
Q: Why I am unable to transfer data to the archive?
A: By default, the XenData software only accepts data if there is a cartridge to write that data to. If you have no writable cartridges, because you have run out of blanks or the current writable cartridge is in alert, then you will be unable to archive. If the current writable volume is in alert, you can right click on it and select ‘reset alert’. If that does not work, you can add a new volume. With a new volume added you can continue working. We would suggest at that point you should contact our support team to investigate why there is an alert volume.
Q: How can I be sure that the data I transferred to the archive is identical to the data eventually written to an archive cartridge?
A: LTO drives from generation 6 onwards implemented a new feature called Logical Block Protection. The drive provides a checksum of the data written, and the XenData software checks that against the checksum of the data we initially received. It is possible for the sending application to provide this checksum when it transfers the data, so we can ensure the data integrity all the way from the sending application, to the tape. We call this End to End Logical Block Protection.
Q: Can I use any AV software on the system running XenData?
A: XenData and AV software both use a feature of Windows called a mini filter driver, so it is possible that we can interfere with each other. A list of tested and qualified AV software is available on our web site. Please see our Tech Note for more information.
Q: Can I write to the XenData archive using FTP?
A: Yes. Many customers install FileZilla server on the XenData system, and allow FTP clients to write to the Archive.
Q: Can I write using NFS?
A: No, Windows NFS is not currently supported.
Q: What is the best way to shut the server down, is there a specific order or process?
A: The first step is to stop any archives or restores that are being requested. Once the system is idle, you can stop the XenData Archive Series service, and then shut the server down.
Q: Is there a specific way to bring the system back up/on-line after shutdown?
A: Ensure the Storage hardware is powered on and ready, that means in terms of a ODA or LTO library it has finished its initialisation. Now boot the XenData server. The XenData service starts automatically. When the XenData service starts all writable cartridges are checked, this is to ensure that no data has been added whilst the service was not running. Until a cartridge is checked no data can be written to it.
Q: When should I add media to the volume set manually?
A: By default, media is automatically added to a volume set when the existing writable media is almost full. The percentage at which it is added can be configured in the Volume Set configuration. This means the only time you should add media manually, is when you first create a new volume set, or if the current volume is in alert and cannot be reset. We would suggest you do not add multiple volumes, as the system checks writable media on start up, and this can increase the start up time.
Q: Should I use ODA or LTO?
A: ODA and LTO can both be suitable for a range of different applications. In order to find out which one is best for your needs we recommend you contact our sales department.
Q: Can I install Windows Updates?
A: Yes, we encourage people to stay up to date with Windows updates. This has no effect on our software.
Q: Can I use Windows Active Directory permissions on the cache drive?
A: Yes, we look and act like a Windows disk drive, you can use Active Directory permissions on the XenData cache drive.