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Date: Tue, 9 Jan 2007 02:41:09 -0800 (PST)
From: "R. B. Riddick" <arne_woerner@yahoo.com>
To: Pawel Jakub Dawidek <pjd@FreeBSD.org>
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Cc: freebsd-geom@freebsd.org
Subject: Re: Recommended gmirror solution with swap?
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For the stability test of a gmirror/graid5 device under regular request load
with a sudden disk failure I wrote 2 shell scripts (the one for gmirror crashes
the device after some cycles, while the one for graid5 does crash (so
quickly)).

while [ 1 ] ;do
        gnop configure -f 0 ad0s1gd.nop
        echo good
        gmirror forget fook
        gmirror insert -h fook ad0s1gd.nop
        while [ `gmirror status fook | grep -c COMPLETE` -eq 0 ]; do
                sleep 1
        done
        gnop configure -f 100 ad0s1gd.nop
        echo fail
        while [ `gmirror status fook | grep -c COMPLETE` -ne 0 ]; do
                gmirror status fook
                sleep 1
        done
done


while [ 1 ] ;do
        gnop configure -f 0 ad0s1gd.nop
        echo good
        graid5 configure -a fook
        while [ `graid5 status fook | grep -c COMPLETE` -eq 0 ]; do
                sleep 1
        done
        gnop configure -f 100 ad0s1gd.nop
        echo fail
        while [ `graid5 status fook | grep -c COMPLETE` -ne 0 ]; do
                graid5 status fook
                sleep 1
        done
done


-Arne

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