I am running DP 2.x with WHS 2011. I have 2 Pools of 2x2TB HDDs, duplication is set to x2 for everything. I backup everything using WHS 2011 Server Backup.
One Pool (392 GB net) contains all the shares except for the Client Backups. The other (1.16 TB net) contains only the Client Backups. Of each Pool, I backup one underlying HDD.
Given that the Client Backup database changes, the Server Backup .vhd fills up tracking changes and reaches its limit of 2TB. At that time, all Server Backups are deleted and WHS Server Backup starts over again with a full backup. This is fine in principle but it does mean that the history I actually keep is not as long as I would like. Also, should a HDD fail then there is no HDD to which it can migrate the data.
So I would like to create one Pool of 4 x 2TB, x2 duplication. That way, each HDD would contain about 750GB so that the history I keep is longer. The problem is though that files may be placed on the two HDDs that I do not backup.
So I am wondering whether it is possible to tell DP to, in a way, group the HDDs in a 2x2 fashion, e.g., keep one duplicate on either E: of F: and the other on either G: or H:? Or, put otherwise, keep an original on E: or F: and the copy on G: or H: (I realise the concept of orginal/copy is not how DP works but as an example/explanation of what I want it to do), to the extent possible. It would not be possible if, for instance:
- E: or F: failed, I would still have duplicates after migration but some will be on G: and H:
- G: or H: failed, I would still have duplicates but some would be on both E: and F:
I do realise that once either E: or F: fails, my Server Backup will be incomplete. However, that is true for my current setup as well. The intention would be to replace E: of F: and then ensure that the duplication/placement scheme is correct again (and I would hope this works automatically if the new HDD as the appropriate drive letter and gets added to the Pool).
I have looked at the File Placement tab but I don't see how I should set up rules to accomplish what I want.
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Umfriend
Hi,
I am running DP 2.x with WHS 2011. I have 2 Pools of 2x2TB HDDs, duplication is set to x2 for everything. I backup everything using WHS 2011 Server Backup.
One Pool (392 GB net) contains all the shares except for the Client Backups. The other (1.16 TB net) contains only the Client Backups. Of each Pool, I backup one underlying HDD.
Given that the Client Backup database changes, the Server Backup .vhd fills up tracking changes and reaches its limit of 2TB. At that time, all Server Backups are deleted and WHS Server Backup starts over again with a full backup. This is fine in principle but it does mean that the history I actually keep is not as long as I would like. Also, should a HDD fail then there is no HDD to which it can migrate the data.
So I would like to create one Pool of 4 x 2TB, x2 duplication. That way, each HDD would contain about 750GB so that the history I keep is longer. The problem is though that files may be placed on the two HDDs that I do not backup.
So I am wondering whether it is possible to tell DP to, in a way, group the HDDs in a 2x2 fashion, e.g., keep one duplicate on either E: of F: and the other on either G: or H:? Or, put otherwise, keep an original on E: or F: and the copy on G: or H: (I realise the concept of orginal/copy is not how DP works but as an example/explanation of what I want it to do), to the extent possible. It would not be possible if, for instance:
- E: or F: failed, I would still have duplicates after migration but some will be on G: and H:
- G: or H: failed, I would still have duplicates but some would be on both E: and F:
I do realise that once either E: or F: fails, my Server Backup will be incomplete. However, that is true for my current setup as well. The intention would be to replace E: of F: and then ensure that the duplication/placement scheme is correct again (and I would hope this works automatically if the new HDD as the appropriate drive letter and gets added to the Pool).
I have looked at the File Placement tab but I don't see how I should set up rules to accomplish what I want.
Kind rgds,
Umf
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