Re: How to balance volume priority (some NFS vs. CIFS)

From: Adam McDougall (mcdouga9@egr.msu.edu)
Date: Sun Feb 08 2009 - 22:39:54 EST

  • Next message: Cannon, Greck: "Re: How to balance volume priority (some NFS vs. CIFS)"

    Pat Breen wrote:
    > Adam McDougall wrote:
    >>
    >> Goal: reduce the impact of greedy clients (primarily known ones, but
    >> hopefully unexpected ones too) on the response time of the rest of the
    >> filer's clients. I don't care if the CIFS software share must accept
    >
    > Adam -
    >
    > I'd suggest taking a look at FlexShare (available since 7.2.x at
    > no additional cost) which has been developed for exactly this
    > problem.
    >
    > It ONLY kicks in when there is contention of resources (eg. CPU,
    > memory)
    >
    > Prioritise the NFS workloads to high, and either leave the
    > CIFS workload as is or set to low.
    >
    > Regards,
    >
    >
    > Pat
    >
    As I understand it, FlexShare is the same thing as na_priority which I
    already tried with no obvious results. I wondered if I might need to
    restart CIFS or anything else to activate the changes; I "enabled"
    priority and set some priorities. "win" is the software share I spoke of.

    > priority show volume
            Volume Priority Relative Sys Priority
                    Service Priority (vs User)
              home on High Low
              mail on VeryHigh Low
           scratch on VeryLow Low
             sites on High Low
               win on VeryLow Medium



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