On Thu, 15 Jul 2010, Jeff Wasilko wrote: > Dedupe is a late addition to their feature set. It's file-based, not > block based, so not all that useful. It also does compression of files > that meet criteria. Generally they consider files 2-4 weeks old > candidates for dedupe/compression.
Good to know. NetApp was file-based initially, but now they support block-based dedupe. However, it's only across what they call aggregates, not across the whole filer. How does the physical to logical mapping work on a Celerra? On the NetApp, the physical disks are assigned to RAID groups, and then those groups are used to create aggregates (currently up to 16TB max size, but soon to be 100TB max). Within the aggregates, you can create your volumes and within the volumes there are "qtrees". Shares/exports can be at any level. Snapshots work at the volume level (there are aggregate snapshots, but they're not particularly useful except in specific circumstances). Replication (mirroring) is based on snapshots, so it's done at the volume level as well, though there is a qtree mirroring function. > I think it's just as tricky. We looked at it briefly and decided to > stick with samba for windows access to nfs shares since we needed some > wacky permissions things. Yeah, that's what I figured. Thanks! -Adam _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
