On Thu, 13 Apr 2000, Bennett Todd wrote:
So anyway, enough with background, the question is, how come I don't hear anyone advocating using Netapp's snapshots as a backup strategy? Netapps don't lose data; it's not like WAFL or Netapp's RAID or any other bits are so bug-ridden that they don't do their job.
NetApp does. I used snapmirror to send a copy of our data to another location. You could also do the same with one filer.
I asked NetApp to add functionality of "spoofing" the filehandles on the destination volume so that no client reboots would be necessary in order to switch to the other volume without stale NFS filehandles. This was really done for data migration, but doing it would be equivalent to rolling back the snapshot in case of disaster recovery as far as clients are concerned.
Tom
P.S. I was told about a month ago that my request was to be implemented in one of the future releases. It may be in already, I haven't heard about it yet.