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Slow ZFS-share performance (both CIFS and NFS)

842488Feb 24 2011 — edited Feb 27 2011

Hello,

After upgrading my OpenSolaris file server (newest version) to Solaris 11 Express, the read (and write)-performance on my CIFS and NFS-shares dropped from 40-60MB/s to a few kB/s. I upgraded the ZFS filesystems to the most recent version as well.

dmsg and /var/log/syslog doesn't list anything abnormal as far as I can see.. I'm not running any scrubs on the zpools, and they are listed as online. top doesn't reveal any process utilizing the CPU more than 0.07%.

The problem is probably not at the client side, as the clients are 100% untouched when it comes to configuration.

Where should I start looking for errors (logs etc.)? Any recommended diagnostic tools?

Best regards,
KL

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Locked on Mar 27 2011

Added on Feb 24 2011

#oracle-solaris, #solaris-11

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