hello all,
i am a little new to zfs so please excuse my ignorance. i have a poweredge 2950
running Nevada B82 with an Apple Xraid attached over a fiber hba. they are
formatted to JBOD with the pool configured as follows:
NAME STATE READ WRITE CKSUM
tpool4 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c3t60003930000150E6d6 ONLINE 0 0 0
c2t6000393000014A52d0 ONLINE 0 0 0
c3t60003930000150E6d5 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t6000393000014A52d1 ONLINE 0 0 0
c3t60003930000150E6d4 ONLINE 0 0 0
c2t6000393000014A52d2 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c3t60003930000150E6d3 ONLINE 0 0 0
c2t6000393000014A52d3 ONLINE 0 0 0
c3t60003930000150E6d2 ONLINE 0 0 0
logs ONLINE 0 0 0
mirror ONLINE 0 0 0
c3t60003930000150E6d1 ONLINE 0 0 0
c2t6000393000014A52d5 ONLINE 0 0 0
spares
c2t6000393000014A52d4 AVAIL
c2t6000393000014A52d6 AVAIL
c3t60003930000150E6d0 AVAIL
i have a filesystem (tpool4/seplog) shared over nfs. creating files locally
seems to be fine but writing files over nfs seem to be extremely slow. on one
of the clients(os x) it reports over 3hours to copy a 500MB file.
also during the copy when i issue a zpool iostat -v 5 the response time
increases for the command.
i have also noticed that none of the led''s on the drives flicker.
would someone be able to point in the right direction? any help is appreciated.
thanx in advance.
cheers,
abs
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abhishake00 at yahoo.com said:> i am a little new to zfs so please excuse my ignorance. i have a poweredge > 2950 running Nevada B82 with an Apple Xraid attached over a fiber hba. they > are formatted to JBOD with the pool configured as follows: > . . . > i have a filesystem (tpool4/seplog) shared over nfs. creating files locally > seems to be fine but writing files over nfs seem to be extremely slow on one > of the clients(os x) it reports over 3hours to copy a 500MB file. also > during the copy when i issue a zpool iostat -v 5 the response time increases > for the command. i have also noticed that none of the led''s on the drives > flicker.If you haven''t already, tell the Xraid to ignore cache-flush requests from the host: http://www.opensolaris.org/jive/thread.jspa?threadID=11641 Regards, Marion
thank you so much. that fixed it all. i''ve been at it for 3 days now. cheers, abs Marion Hakanson <hakansom at ohsu.edu> wrote: abhishake00 at yahoo.com said:> i am a little new to zfs so please excuse my ignorance. i have a poweredge > 2950 running Nevada B82 with an Apple Xraid attached over a fiber hba. they > are formatted to JBOD with the pool configured as follows: > . . . > i have a filesystem (tpool4/seplog) shared over nfs. creating files locally > seems to be fine but writing files over nfs seem to be extremely slow on one > of the clients(os x) it reports over 3hours to copy a 500MB file. also > during the copy when i issue a zpool iostat -v 5 the response time increases > for the command. i have also noticed that none of the led''s on the drives > flicker.If you haven''t already, tell the Xraid to ignore cache-flush requests from the host: http://www.opensolaris.org/jive/thread.jspa?threadID=11641 Regards, Marion --------------------------------- Looking for last minute shopping deals? Find them fast with Yahoo! Search. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20080228/f20dafe7/attachment.html>