On 10/19/08 03:49, Audun Frøysaa wrote: > Ok, maybe i should write some more information :-). > > I am wondering if it could be a problem with the 2 external USB drives, but > when i had LVM setup i did not have this problem.. > > My system setup is like this: > 4 Sata drives: 1 TB from Samsung and 3 500Gb from Samsung > 2 External USB drives from WD ( 500gb elements ). > > -bash-3.2# zpool list > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > Media 1.91T 128G 1.78T 6% ONLINE - > > -bash-3.2# zpool status Media > pool: Media > state: ONLINE > scrub: resilver completed after 0h0m with 0 errors on Sat Oct 18 10:52:36 > 2008 > config: > > NAME STATE READ WRITE CKSUM > Media ONLINE 0 0 0 > raidz2 ONLINE 0 0 0 > c2t0d0 ONLINE 0 0 0 > c3t0d0 ONLINE 0 0 0 > c0d1 ONLINE 0 0 0 > c4t0d0 ONLINE 0 0 0 > c4t1d0 ONLINE 0 0 0 > c5t0d0 ONLINE 0 0 0 > c5t1d0 ONLINE 0 0 0 > > errors: No known data errors > > -bash-3.2# zpool iostat > capacity operations bandwidth > pool used avail read write read write > ---------- ----- ----- ----- ----- ----- ----- > Media 128G 1.78T 3 3 395K 375K > > Is there some way to find the error. > > Thanks > -- > This message posted from opensolaris.org > _______________________________________________ > networking-discuss mailing list > [email protected]
Hi Audun, There is no indication here of what you are seeing. It is not clear to me whether your are seeing these 'gaps' on the wire (thus networking) or on the system with the ZFS pool (thus ZFS). Keep in mind that ZFS will write to disk every five (5) seconds by default, unless there is a lot of data to commit or some other operation requires immediate commit to disk (an NFS write, for example--don't know whether the SMB protocol has similar synchronous write requirement (NFS write does it for data integrity in case the server crashed)). Also, I can't tell whether 120mb is Megabit (Mb) since you are mentioning networking, or MegaByte (MB) since you are mentioning disk (ZFS). Since that is almost an order order of magnitude difference, it may be important, as the question is regarding performance. Steffen (reply-to is set to alias, no need to reply-all) _______________________________________________ networking-discuss mailing list [email protected]
