# [OmniOS-discuss] Fibre Target problems (Mark)

Kevin Swab Kevin.Swab at ColoState.EDU
Tue Sep 16 16:20:42 UTC 2014

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    This is a good point.  Some time recently (I think with the update to
    r151010) writeback cache went from being _enabled_ by default to being
    _disabled_ by default.  Maybe this change was backported to r151006_057?

    Does anyone know why this change was made?  If it was accidental, could
    it be reversed in time for the r151012 release?

    Kevin

    On 09/15/2014 09:02 AM, Kyle Bruene wrote:
    > Mark,
    >
    > Each LU in Comstar has a "writeback cache" property. Maybe you had that enabled instead?
    >
    > Kyle
    >
    > Message: 1
    > Date: Sun, 14 Sep 2014 21:30:50 +1200
    > From: Mark <mark0x01 at gmail.com>
    > To: omnios-discuss at lists.omniti.com
    > Subject: Re: [OmniOS-discuss] Fibre Target problems
    > Message-ID: <5415604A.7030408 at gmail.com>
    > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
    >
    > On 11/09/2014 9:25 p.m., OSN | Marian Fischer wrote:
    >> Hi,
    >>
    >> do you have Sync=disabled in ZFS / ZPOOL settings?
    >> If not, this can cause the slow speed ...
    >
    > No, but I didn't with OI either, and it has no issues achieving 400+ Mbytes/sec and doesn't have link loss issues.
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    Kevin Swab                          UNIX Systems Administrator
    ACNS                                Colorado State University
    Phone: (970)491-6572                Email: Kevin.Swab at ColoState.EDU
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