I'm showing slow zfs send on pool v29. About 25MB/sec
bash-3.2# zpool status vdipool
  pool: vdipool
 state: ONLINE
scan: scrub repaired 86.5K in 7h15m with 0 errors on Mon Feb 6 01:36:23 2012

        NAME                       STATE     READ WRITE CKSUM
        vdipool                    ONLINE       0     0     0
          raidz1-0                 ONLINE       0     0     0
c0t5000C500103F2057d0 ONLINE 0 0 0 (SEAGATE-ST31000640SS-0003-931.51GB) Promise Jbod c0t5000C5000440AA0Bd0 ONLINE 0 0 0 (SEAGATE-ST31000640SS-0003-931.51GB) Promise Jbod c0t5000C500103E9FFBd0 ONLINE 0 0 0(SEAGATE-ST31000640SS-0003-931.51GB) Promise Jbod c0t5000C500103E370Fd0 ONLINE 0 0 0(SEAGATE-ST31000640SS-0003-931.51GB) Promise Jbod c0t5000C500103E120Fd0 ONLINE 0 0 0(SEAGATE-ST31000640SS-0003-931.51GB) Promise Jbod
          mirror-1                 ONLINE       0     0     0
c0t500151795955D430d0 ONLINE 0 0 0(ATA-INTEL SSDSA2VP02-02M5-18.64GB) onboard drive on x4140 c0t500151795955BDB6d0 ONLINE 0 0 0 (ATA-INTEL SSDSA2VP02-02M5-18.64GB)onboard drive on x4140
c0t5001517BB271845Dd0 ONLINE 0 0 0 (ATA-INTEL SSDSA2CW16-0362-149.05GB)onboard drive on x4140
c0t5000C500103E368Fd0 AVAIL (SEAGATE-ST31000640SS-0003-931.51GB) Promise Jbod

The drives are in an external promise 12 drive jbod. The jbod is also connected to another server that uses the other 6 SEAGATE ST31000640SS drives.

This on Solaris 10 8/11 (Generic_147441-01). I'm using LSI 9200 for the external promise jbod and an internal 9200 for the zli and l2arc which also uses rpool.
FW versions on both cards are  MPTFW- and MPT2BIOS-

I'm wondering why the zfs send could be so slow. Could the other server be slowing down the sas bus?


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