SnapMirror Qtree-level product enhancement was announced Monday. Product information is updated on the public website by now. To summarize:
- Requires ONTAP 6.2 - Single destination volume can host mirrored data for multiple source filers' qtrees - Destination qtree is read-only, but it can reside in a read-write volume on the destination filer - Each destination volume supports up to 29 mirrored qtrees; cannot cascade - Works at a logical file level, so it does NOT transfer FILESYSTEM metadata ==> protection against file corruption at destination site, which previously would have been replicated with volume-level SnapMirror - Dramatically improves capacity management for destination filer with multiple sources - Can replicate smaller data sets, further reducing capacity requirements, while improving bandwidth and CPU overhead loads; however, if mirroring the entire volume it does take longer and use more capacity than volume-based SnapMirror (approximately 5% overhead compared to volume-level SnapMirror) - Changing between volume- and qtree-level (in either direction) requires a new level 0
HTH.
Joe
Joe Luchtenberg Dataline, Inc.
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-----Original Message----- From: Noll, Kevin [mailto:kevin.noll@cgey.com] Sent: Thursday, March 21, 2002 12:31 PM To: toasters@mathworks.com Subject: THE NEW REDHOOK Snapmirror using QTREE's
HI
I would like to know if with the new Redhook, if it will be possible to do snap shots on a qtree basis.
Thanks KEVIN NOLL
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Joe Luchtenberg