Date: Fri, 27 Nov 2009 17:37:02 +0100 From: Vincent Zee <zenzee@xs4all.nl> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: replacing faulty disk in a gmirror Message-ID: <20091127163702.GA9156@xs4all.nl>
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Hi,
I'm trying to replace a faulty disk in a gmirror mirror but
it fails.
This machine contains two mirrors: mirror0 and mirror1 each
containing two disks of 500 GB. mirror1 is giving me trouble.
The disk on channel 3 (ad6), which was identical to the disk on
channel 2 (ad4), was faulty and I replaced it with a larger disk
this morning. The new disk is a Western Digital 640 GB.
The steps I took sofar:
#gmirror forget mirror1
#gmirror insert mirror1 ad6
A "gmirror status" shows the new disk being added to mirror1.
It then starts to write to the new disk but stops after a few
seconds and when I do "gmirror status" again the new disk is
gone again.
Any ideas?
Here is some info about the system:
piggie# uname -a
FreeBSD piggie.int.daemon.net 7.0-RELEASE FreeBSD 7.0-RELEASE #0:
Sun Feb 24 19:59:52 UTC 2008
piggie# atacontrol list
ATA channel 0:
Master: ad0 <ST3500630A/3.AAE> ATA/ATAPI revision 7
Slave: no device present
ATA channel 1:
Master: ad2 <ST3500630A/3.AAE> ATA/ATAPI revision 7
Slave: no device present
ATA channel 2:
Master: ad4 <ST3500320AS/SD15> Serial ATA v1.0
Slave: no device present
ATA channel 3:
Master: ad6 <WDC WD6400AACS-00D6B1/01.01A01> Serial ATA II
Slave: no device present
piggie# gmirror status
Name Status Components
mirror/mirror0 COMPLETE ad0
ad2
mirror/mirror1 DEGRADED ad4
piggie# gmirror list
Geom name: mirror0
State: COMPLETE
Components: 2
Balance: round-robin
Slice: 4096
Flags: NONE
GenID: 0
SyncID: 1
ID: 2181652091
Providers:
1. Name: mirror/mirror0
Mediasize: 500107861504 (466G)
Sectorsize: 512
Mode: r5w5e6
Consumers:
1. Name: ad0
Mediasize: 500107862016 (466G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: NONE
GenID: 0
SyncID: 1
ID: 1890757270
2. Name: ad2
Mediasize: 500107862016 (466G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: NONE
GenID: 0
SyncID: 1
ID: 2188477788
Geom name: mirror1
State: DEGRADED
Components: 2
Balance: round-robin
Slice: 4096
Flags: NONE
GenID: 8
SyncID: 4
ID: 3490083122
Providers:
1. Name: mirror/mirror1
Mediasize: 500107861504 (466G)
Sectorsize: 512
Mode: r1w1e1
Consumers:
1. Name: ad4
Mediasize: 500107862016 (466G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: NONE
GenID: 8
SyncID: 4
ID: 2123128362
TIA,
/\
Vincent
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