Cyrus & ZFS performance

[Gary Mills]

On Thu, Jul 05, 2007 at 09:10:51AM -0700, Vincent Fox wrote:
> 
> More importantly what does iostat -cxn 5 look like during peak?
> For us this is 1100-1300 hours hitting about 40%. Of course this
> is summertime usage so things are a bit slack here with most
> students being home, not so much daily class-related chitchat.

This is on a Sun T2000 with 500 GB of e-mail on a ZFS filesystem.
Storage is from a Netapp using iSCSI.  There are 1500 IMAP sessions,
about half of what we get in the winter.  I'm quite pleased with
this configuration.

     cpu
 us sy wt id
  4  3  0 93
                    extended device statistics
    r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  %w  %b device
   15.0  192.4 1000.6 1900.3  0.0  0.6    0.0    2.9   0  34 c3t0d0
   15.2  275.6  941.0 2024.7  0.0  0.7    0.0    2.6   0  36 c3t3d0


-- 
-Gary Mills-    -Unix Support-    -U of M Academic Computing and Networking-