From: Leyden, Joseph (LeydenJ@MTA.NET)
Date: Tue Mar 09 2004 - 12:32:53 EST
How can you migrate an hdisk that already failed?
JOe
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
Green, Simon
Sent: Tuesday, March 09, 2004 9:07 AM
To: aix-l@Princeton.EDU
Subject: Re: Replacing Failing SSA Disk
That's not quite how I'd do it.
If you have a free SSA slot, my preferred mechanism would be...
lspv Note which disks you've got.
Insert new disk
cfgmgr -l ssar I don't care if the new disk is a different number.
lspv See what the new one is.
migratepv hdisk17 hdiskXX
reducevg oravg hdisk17
ssaxlate -l hdisk17 To get the pdisk...
rmdev -dl hdisk17
rmdev -dl pdiskNN
Remove the defective disk
This way, you maintain the mirror at all times. It also minimises the
amount of I/O if you have LVs spanning disks.
If you're desperate to keep the disk as hdisk17, or don't have a free slot
then do it your way, but don't forget to remove the pdisk as well as the
hdisk.
-- Simon Green Altria ITSC Europe Ltd AIX-L Archive at https://new-lists.princeton.edu/listserv/aix-l.html New to AIX? http://publib-b.boulder.ibm.com/redbooks.nsf/portals/UNIX N.B. Unsolicited email from vendors will not be appreciated. Please post all follow-ups to the list. > -----Original Message----- > From: Tim Muller [mailto:aix_sa_706@YAHOO.COM] > Sent: 09 March 2004 16:22 > To: aix-l@Princeton.EDU > Subject: Replacing Failing SSA Disk > > > I am getting an SSA_DISK_ERR4 error on my J40 running > AIX 4.3.3. The disk is in a mirrored VG. I have > never replaced a disk on a running system before, so > I'd feel better if someone would look over the > procedure I'm planning to follow and let me know if I > am overlooking anything. Thanks very much. > > unmirrorvg oravg hdisk17 > reducevg oravg hdisk17 > rmdev -l hdisk17 -d > [replace disk drive, let the drive be renamed hdisk17] > extendvg oravg hdisk17 > mirrorvg oravg
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