Date: Fri, 25 Jan 2002 13:59:32 +0100 (CET) From: Martin Blapp <mb@imp.ch> To: Greg Lehey <grog@FreeBSD.org> Cc: <freebsd-stable@FreeBSD.org> Subject: Re: double fault with vinum and 4.5 RC3 Message-ID: <20020125134718.I58067-100000@levais.imp.ch> In-Reply-To: <20020125131225.E4778@wantadilla.lemis.com>
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I've found now a way to work around this vinum limitation.
It seems that a vinum mirror is not able to handle this case:
Crash of the "Master disk", "Slave Disk becomes Master instead,
and we boot the Slave Disk as Master.
I had to do the following steps:
1) Reboot
1) Change SCSI ID's. ID1 > ID2, ID2 > ID1
3) Boot up the previous SLAVE disk into SUM
4) Partition da1 the same as da0
5) Disklabel da1 the same way as da0
6) dd bs=4096k if=/dev/da0a of=/dev/da1a
7) reboot
8) Change SCSI ID's. ID2 > ID1, ID1 > ID2
9) Boot up the previous SLAVE disk into SUM
10) echo "drive vinumdrive0 device /dev/da0e" > configfile
echo "drive vinumdrive2 device /dev/da0f" >> configfile
echo "drive vinumdrive4 device /dev/da0g" >> configfile
11) vinum start
12) vinum start vinumdrive0
13) vinum start vinumdrive2
14) vinum start vinumdrive4
15) vinum stop
16) vinum start var.p0.s0
17) vinum start docsis.p0.s0
18) vinum start docsisvar.p0.s0
And then vinum gets happy and rebuilds.
The only difference here is that we have to reboot and change SCSI ID's twice,
instead of only one time.
Martin
Martin Blapp, <mb@imp.ch> <mbr@FreeBSD.org>
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