I am rather puzzled.
cn1:~ # rsh filer df -h vol1 Filesystem total used avail capacity Mounted on /vol/vol1/ 2448GB 776GB 1671GB 32% /vol/vol1/ snap reserve 612GB 158GB 453GB 26% /vol/vol1/..
So according to this we have 156GB worth of snapshots. So far so good.
cn1:~ # rsh filer snap delta vol1
Volume vol1 working...
...
Summary...
From Snapshot To KB changed Time Rate (KB/hour) --------------- -------------------- ----------- ------------ -------------- Oldest_snap Active File System 265800060 14d 09:08 770120.583
Oops. I would expect df -h to show *more* than snap delta (due to the fact that we have more intermediate snapshots); but how comes that - apparently having 260GB worth of snapshot data - I only see 158GB in space accounting?
I am likely missing something obvious. Hmm ... is it possible that "snap delta" accounts for both changed *and* new data while "df -h" accounts for *changed* data only? Looks plausible...
С уважением / With best regards / Mit freundlichen Grüβen
--- Andrey Borzenkov Senior system engineer