Re: Migrate Data from 18Gb SCSI Drive to 36GB SCSI Drive
From: Andrew Townsend (Andrew.Townsend_at_BISYS.COM)
Date: 10/29/04
- Previous message: Bill Verzal: "Re: Migrate Data from 18Gb SCSI Drive to 36GB SCSI Drive"
- Maybe in reply to: Tony Gallo: "Migrate Data from 18Gb SCSI Drive to 36GB SCSI Drive"
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Date: Fri, 29 Oct 2004 15:40:33 -0400 To: aix-l@Princeton.EDU
You are correct. I read right over the "move data to one drive'.
The data is already there if it is mirrored. No need to move the data, just
verify that it is still there, and proceed.
Sorry about the confusion.
Andrew
cbaker@GOODYEAR.C
OM To: aix-l@Princeton.EDU
Sent by: IBM AIX cc:
Discussion List Subject: Re: Migrate Data from 18Gb SCSI Drive to 36GB SCSI Drive
<aix-l@Princeton.
EDU>
10/29/2004 03:23
PM
Please respond to
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Andrew wrote:
>> I would do similar to Jason but a little different:
>> Break the mirror, move all data to one drive, remove empty drive from
vg,
>> rmdev empty drive, physically remove empty drive, put new drive in,
cfgmgr,
I totally agree with this method that Andrew and other have written. BUT,
I do have one point/question. The second step, ".... move
all data to one drive, ....", why would you be moving any data at this
step? It was a mirror of the same data on both disk drive A
and B. If you break the mirror, all the same data is on disk A and disk B,
no? Just remove disk A from the VG and go on an add disk
C and recreate the mirror. Then, as you point out, break mirror again and
this time remove disk B from the VG..... There was no "data
move" there. And, of course, add disk D and re-mirror one more time....
DONE.
Am I missing something? Is not the entire disk A mirrored on disk B?
Christopher M. Baker
Senior Technical Support Analyst
DSE/TCO
Goodyear Tire and Rubber Company
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Andrew Townsend
<Andrew.Townsend@BISYS.COM>
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<aix-l@Princeton.EDU>
aix-l@Princeton.EDU
cc
10/28/04 03:47 PM
Subject
Re: Migrate
Data from 18Gb SCSI Drive to 36GB SCSI Drive
Please respond to
IBM AIX Discussion List
<aix-l@Princeton.EDU>
I would do similar to Jason but a little different:
Break the mirror, move all data to one drive, remove empty drive from vg,
rmdev empty drive, physically remove empty drive, put new drive in, cfgmgr,
extendvg, mklvcopy old drive to new drive (to re-establish the mirror),
rmlvcopy old drive, rmdev old drive, physically remove old old drive,
insert second new drive, extendvg to second new drive, mklvcopy to second
new drive.
Drew
Jason delaFuente
<jason.delafuente To:
aix-l@Princeton.EDU
@GBE.COM> cc:
Sent by: IBM AIX Subject: Re: Migrate Data
from 18Gb SCSI Drive to 36GB SCSI Drive
Discussion List
<aix-l@Princeton.
EDU>
10/28/2004 03:39
PM
Please respond to
IBM AIX
Discussion List
Break the mirror, move all data to one drive, remove empty drive from vg,
rmdev empty drive, physically remove empty drive, put new drive in, cfgmgr,
extendvg, migratepv data to new drive, repeat for second drive, mirrorvg
Jason de la Fuente
>>> tony_gallo@THRUWAY.STATE.NY.US 10/28/04 02:19PM >>>
I have a "datavg" volume group that is mirrored from hdisk2 to hdisk3 on
a 7026 B80. These internal disks are both 18GB scsi drives and I just
rec'd 2 new drives to replace them. There are no extra drive bays in the
server. I figure I will need to back up the vg with savevg and then swap
the drives and do a restvg which I've never done or could I break the
mirror and the swap 1 drive and remirror and then the other?
What would be the best/easiest way?
TIA
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- Previous message: Bill Verzal: "Re: Migrate Data from 18Gb SCSI Drive to 36GB SCSI Drive"
- Maybe in reply to: Tony Gallo: "Migrate Data from 18Gb SCSI Drive to 36GB SCSI Drive"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
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