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NonStopBackup will not protect one of my volumes

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I have ATI 2010 which I have been using for ages in the simplest straightforward ways. However, I want to backup my (internal) 1.5TB Raid 1 volume onto my (external on USB) 2TB volume. I can set the external drive as the storage place, but I cannot set the 1.5TB to protected. Other smaller drives can be selected, but not the one I want.

I can do a straight backup from 1.5TB to 2TB, it is just the NonStopBackup which gives the problem.

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Is your RAID 1 set up in software, by any chance?

When you want to do a disk and partition backup, does ATI sees the RAID1? Or does it see only for a file backup?

My RAID 1 is indeed software, using W7 Disk Management, not a third party software.

  • It is and has been working fine for months, since machine initial build.
  • The RAID 1 is available to ATI as a destination for NonStopBackup of other disks, but not as a source.
  • ATI can use it for Disk and Partition backup (ie as a source) both for full and incremental backup. I just cannot get it to do this in NSB.

It may, of course, be nothing to do with it being RAID 1, simply a red herring?

When you set up a RAID through software, your disks become dynamic disks.

Only with the Plus Pack can you backup dynamic disks, but it doesn't support RAID 1 software

Although you can backup your RAID, you would not be able to restore it.

http://kb.acronis.com/content/11681

Between you and me, I don't see the benefit of RAID1 when you use imaging software backup. THere is no performance improvement (on the contrary). I could see how you would want to have RAID 0 for performance gains. Anyhow...

Pat, Thanks for the info, however appalling it is. Only in the small print can one find this sort of stuff and I would have been merrily backing up pointlessly had you not replied. (I do have PlusPack.) I think the reference implies that I could restore to a non-RAID, and then do file copies to my RAID. If I am right, I may continue.

Now, to the nub of the matter. I do not understand your comment about benefit of RAID1. I have done this to give me hardware resilience, and I disagree about the performance improvement. Despite the fact that there are two write operations, I have done some very careful comparisons of performance with and without mirroring and there is a slight improvement with mirror - someone has been pretty clever about how it is implemented. Most importantly, in my rather long experience, I have found that the non-stop and painless recovery from the loss of a disk is worth some performance degradation. I used to manage a large Alpha-AXP VMS Cluster centre, and we simply never stopped, despite some disk crashes (disks were less reliable then). I think that is still the case. We did backups as well.

On the other hand, as a private PC owner, before I had a UPS, I had a disk crash and took days to get everything sorted, including procuring the replacement. You have your preferences, which I respect, but I have mine.

Until recently, I have not bothered with backup, but then I deleted a whole load of stuff I didnt want, and then found I did want it! Classic. So I decided to backup. 

Again, thanks for putting me straight on the lack of RAID1 restore support.