Re: freebsd-performance Digest, Vol 4, Issue 7

From: Jin Guojun [DSD] (j_guojun_at_lbl.gov)
Date: 06/18/03

  • Next message: Petri Helenius: "Re: freebsd-performance Digest, Vol 4, Issue 7" 
    Date: Wed, 18 Jun 2003 13:26:05 -0700
To: Eric Anderson <anderson@centtech.com>

    Eric Anderson wrote:

    > > Very minimum.
    > > It was slow on SCSI bus , but I do not have time to diagnose,
    > > which can be very time consuming.
    >
    > My tests have shown that a GOOD hardware RAID5 controller can really
    > help you out when it's being slammed (specially over NFS) - I use Dell
    > PERC/2 and PERC/3 controllers (rebranded AMI RAID boards). They run
    > like champs, and I get 40MB/s sustained xfers..

    What did you mean sustained xfers ? -- in and out, or just read out.

        -Jin

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  • Next message: Petri Helenius: "Re: freebsd-performance Digest, Vol 4, Issue 7"

    Relevant Pages

    • Re: freebsd-performance Digest, Vol 4, Issue 7
      ... > which can be very time consuming. ... My tests have shown that a GOOD hardware RAID5 controller can really ... PERC/2 and PERC/3 controllers (rebranded AMI RAID boards). ... With software RAID, I get less, however it is substantially cheaper, and ...
      (freebsd-performance)
    • Re: freebsd-performance Digest, Vol 4, Issue 7
      ... > Eric Anderson wrote: ... >>My tests have shown that a GOOD hardware RAID5 controller can really ... sustained writes (not burst transfers) and sustained reads.. ... hardware RAID's that have cache memory on them (as the PERC's do - mine ...
      (freebsd-performance)