Brent Jones wrote: > On Fri, Jan 9, 2009 at 11:41 PM, Brent Jones <br...@servuhome.net> wrote: > >> On Fri, Jan 9, 2009 at 7:53 PM, Ian Collins <i...@ianshome.com> wrote: >> >>> Ian Collins wrote: >>> >>>> Send/receive speeds appear to be very data dependent. I have several >>>> different filesystems containing differing data types. The slowest to >>>> replicate is mail and my guess it's the changes to the index files that >>>> takes the time. Similar sized filesystems with similar deltas where files >>>> are mainly added or deleted appear to replicate faster. >>>> >>>> >>>> >>> Has anyone investigated this? I have been replicating a server today >>> and the differences between incremental processing is huge, for example: >>> >>> filesystem A: >>> >>> received 1.19Gb stream in 52 seconds (23.4Mb/sec) >>> >>> filesystem B: >>> >>> received 729Mb stream in 4564 seconds (164Kb/sec) >>> >>> I can delve further into the content if anyone is interested. >>> >>> -- >>> Ian. >>> >>> _______________________________________________ >>> zfs-discuss mailing list >>> zfs-discuss@opensolaris.org >>> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >>> >>> >> What hardware, to/from is this? >> >> How are those filesystems laid out, what is their total size, used >> space, and guessable file count / file size distribution? >> >> I'm also trying to put together the puzzle to provide more detail to a >> case I opened with Sun regarding this. >> >> -- >> Brent Jones >> br...@servuhome.net >> >> > > Just to update this, hope no one is tired of hearing about it. I just > image-updated to snv_105 to obtain patch for CR 6418042 at the > recommendation from a Sun support technician. > > My results are much improved, on the order of 5-100 times faster > (either over Mbuffer or SSH). Not only do snapshots begin sending > right away (no longer requiring several minutes of reads before > sending any data), the actual send will sustain about 35-50MB/sec over > SSH, and up to 100MB/s via Mbuffer (on a single Gbit link, I am > network limited now, something I never thought I would say I love to > see!). > Thanks for the heads up Brent, I'll have to sweet talk one of my former clients into running OpenSolaris on their x4540s. Anyone know if NetVault is supported on OpenSolaris?
Do any of the Sun folks know if these update will be back-ported to Solaris 10 in a patch or update release? -- Ian. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
