Re: some simple nfs-benchmarks on 5.4 RC2

From: Claus Guttesen (kometen_at_gmail.com)
Date: 04/20/05

  • Next message: Mike Tancsa: "Re: some simple nfs-benchmarks on 5.4 RC2" 
    Date: Wed, 20 Apr 2005 22:28:11 +0200
To: Eric Anderson <anderson@centtech.com>

    > You could use the atabeast to do two raid 5's, then use vinum to stripe those two.

    I actually thought of that a while ago (unrelated to this). I read the
    vinum-page in the handbook, assume this is still valid. I recall a
    discussion regarding it's (re)naming to gvinum, but don't see any
    mention of it so gvinum is no longer used I guess.

    Are there any performance-issues doing striping by FreeBSD. I actually
    have two unused LUN's, each with two 2 TB volumes, so I can stripe the
    first volume in the first LUN with the first volume in the second LUN
    and the second volume etc. so I distribute the load on as many disks
    as possible.

    As far as I know a vinum-volume don't have the same 2 TB
    sizelimitation as disklabel and newfs has, but will I be able to
    newfs? The handbook refers to newfs -v when making a new fs, but I
    can't find -v in man newfs, man 8 vinum says:

    Just run newfs(8). Use the -v option to state that the device is not
    divided into partitions...

    The example uses the -U (enable softupdates) parameter instead:

    # newfs -U /dev/vinum/mirror

    regards
    Claus
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  • Next message: Mike Tancsa: "Re: some simple nfs-benchmarks on 5.4 RC2"

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