From: David Lang (no email)
Date: Mon Feb 12 2007 - 17:15:03 EST
On Mon, 12 Feb 2007, urgrue wrote:
>> If it's using block level replication, how does it offer instant recovery
>> on filesystem corruption? Does it track every block written to disk, and
>> can thus roll back to effectively what was on disk at a particular instant
>> in time, so you then just remount the filesystem and the replay of the
>> journal should restore to a good state?
> Yes. I may be wrong but to my understanding at least NetApp has this
> capability.
No, NetApp takes snapshots of the filesystems on a schedule (hourly, daily,
weekly, etc), and you can read files off of those snapshots. you cannot getany
more granular then that.
David Lang
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