Hello abs
Would you be able to repeat the same tests for the cifs in zfs option
instead of using samba?
Would be interesting to see how the kernel cifs versus the samba
performance compare.
Peter
abs wrote:
hello all,
i have two xraids connect via fibre to a poweredge2950. the 2 xraids
are configured with 2 raid5 volumes each, giving me a total of 4 raid5
volumes. these are striped across in zfs. the read and write speeds
local to the machine are as expected but i have noticed some
performance hits in the read and write speed over nfs and samba.
here is the observation:
each filesystem is shared via nfs as well as samba.
i am able to mount via nfs and samba on a Mac OS 10.5.2 client.
i am able to only mount via nfs on a Mac OS 10.4.11 client. (there
seems to be authentication/encryption issue between the 10.4.11 client
and solaris box in this scenario. i know this is a bug on the client
side)
when writing a file via nfs from the 10.5.2 client the speeds are 60 ~
70 MB/sec.
when writing a file via samba from the 10.5.2 client the speeds are 30
~ 50 MB/sec
when writing a file via nfs from the 10.4.11 client the speeds are 20 ~
30 MB/sec.
when writing a file via samba from a Windows XP client the speeds are
30 ~ 40 MB.
i know that there is an implementational difference in nfs and samba on
both Mac OS 10.4.11 and 10.5.2 clients but that still does not explain
the Windows scenario.
i was wondering if anyone else was experiencing similar issues and if
there is some tuning i can do or am i just missing something. thanx in
advance.
cheers,
abs
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Regards Peter Brouwer,
Sun Microsystems Linlithgow
Principal Storage Architect, ABCP DRII Consultant
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