On Apr 13, 2010, at 5:22 AM, Tony MacDoodle wrote:

> I was wondering if any data was lost while doing a snapshot on a running 
> system?

ZFS will not lose data during a snapshot.

> Does it flush everything to disk or would some stuff be lost?

Yes, all ZFS data will be committed to disk and then the snapshot
is taken.

Applications can take advantage of this and there are services available
to integrate ZFS snapshots with Oracle databases, Windows clients, etc.
 -- richard

ZFS storage and performance consulting at http://www.RichardElling.com
ZFS training on deduplication, NexentaStor, and NAS performance
Las Vegas, April 29-30, 2010 http://nexenta-vegas.eventbrite.com 





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