"Noll, Kevin" wrote:
I agree. Snapshots at a qtree level would be great. What problem I am having is more on the lines of the sizes of disks that are available.
I did wonder if the solution to this type of problem would be to allow multiple volumes per raid group. Then you could have smaller volumes while keeping up the spindle count.
This does kind of turn things on their head. But it might be easier to implement than qtree snapshots.
It did occur to me that you could get the effect of qtree snapshots if you allowed selective deleting of snapshots. Ie the "snap create vol name" would create a snapshot for the whole volume (quickly), but a "snap remove vol path name" would remove part of that snapshot (which could take longer). But now I think about it, I can't think how you tidy up the directories with removed entries, or linked files with one link removed.
- Bruce
-- Bruce Arden arden@nortelnetworks.com CSC, Nortel, London Rd, Harlow, England +44 1279 40 2877