We have a highly active volume and our nightly snapshots can thus grow rather large.
Therefore we limited the snaphots to 2 nightly (snap sched VolX 0 2 0)
There is a major drawback with this because I cannot restrict certain weekdays.
I would call it a flaw in design by netapp.
The thing is that on weekends and holidays there is almost no activity and after an extended weekend the valuable snapshots have been replaced by rather useless small snapshots.
As a workaround I could use cron triggered snapshots from some helper machine e.g. ssh roo@myFiler "snap create VolName SnapName" but then I need another script around it which takes care of deleting and renumbering snapshots.
Although this gives full control I would rather have the filer handle all the stuff.
Does anybody know if the problem can be solved on the filer only?