# [OmniOS-discuss] Parity error on path mpt_sas2

Aaron Curry asc1111 at gmail.com
Tue Nov 25 16:45:31 UTC 2014

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    I had this exact same problem recently when setting up a new home server...
    same controller, same firmware (P20). The errors were on all disks attached
    to the controller, but only on high read activity. Writes did not generate
    the errors. I downgraded the firmware to P18 (which is what we are using at
    work) and the errors went away. Has anyone had success with this controller
    and the P20 firmware?

    Aaron

    On Tue, Nov 25, 2014 at 8:30 AM, Filip Marvan <filip.marvan at aira.cz> wrote:

    > Hi Dan,
    >
    > thanks for reply.
    > Yes, errors are on all 5 disks in the same RAIDZ pool. No problem on other
    > disks in different pool but on the same SAS cable.
    > So maybe I only had bad luck with that disks.
    >
    > Filip
    >
    >
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