From: Marcelino Mata (mmata@MULTIMATIC.COM)
Date: Wed Apr 28 2004 - 11:13:34 EDT
Christopher,
While migrating to large rootvg disks works fine in certain environments (
It worked fine on my test computer), it did not work in the server since I
used 8 MB PP size for the disk. This limits me to 1016 PP's. I need over
1080 PP's for 9.1Gb disk. If I only used 16MB PP, this would of been so
easy/simple....oh, well.
Time for plan B....
Marcelino
>-----Original Message-----
>From: Marcelino Mata
>Sent: Tuesday, April 27, 2004 4:47 PM
>To: 'IBM AIX Discussion List'
>Subject: RE: Correct procedure for restoring system image data
>
>
>Christopher,
>
>See response below...
>
>>-----Original Message-----
>>From: cbaker@GOODYEAR.COM [mailto:cbaker@GOODYEAR.COM]
>>Sent: Tuesday, April 27, 2004 3:45 PM
>>To: aix-l@Princeton.EDU
>>Subject: Re: Correct procedure for restoring system image data
>>Importance: High
>>
>>
>>Marcelino,
>>
>>Don't know why it is doing what it is doing, but since you are
>>back to square-one, may I ask a few questions and make a few
>>observations:
>>
>>1) You can go from AIX 4.3.3 ML9 directly to AIX 5.1. No need
>>(that I am aware of) to go to ML11 in the interim.
>>
>
>I read it somewhere that AIX 5.1 upgrade can fail if AIX 4.3
>is not at the last released ML level. IBM performed testing
>at the lastest ML level so it better practice to start from that level.
>
>>2) If you can connect both the 4.5 GB and the 9.1 GB drive at
>>the same time, you then only need to mirror to the 9.1 then break the
>>mirror to have your OS drive be the 9.1 GB
>>
>
>I can do this. I did not know that this would work. I
>thought that if I did this type of thing, the 9.1Gb disk would
>be "formatted" to be 4.5GB disk. I use the work "formatted"
>since I don't know the AIX lingo for this type of thing. I
>manage AIX, Tru64, Solaris and Linux so I can't stay on top of this...
>
>>3) We have AIX 5.1 and AIX 5.2 on systems with only a single
>>4.5 GB drive. If it is only the rootvg and it is only the OS,
>>it should
>>fit.
>>
>
>I have no free PP's on the disk now and I'm told a migrated
>4.3->5.1 requires more space than fresh install of 5.1. There
>is also a couple filesystems I on the RAID volume group which
>I want to move to rootvg.
>
>
>>4) Why not use "mksysb" and then clone it back onto the system
>>after you swap drives? (Assuming you can't do #2 above.)
>>
>
>Do you recommend of mksysb site or can you provide the command
>line for using myksysb? Sysbackup is idiot proof so I was
>going to stick to that....I'm open to mksysb is I have run
>into a Sysbackup bug/limitation. (Suggestion #2 seems like a
>better idea)
>
>>5) You would be very wise to have all other VG's varied-off /
>>exported and even have the drives off or disconnected so that
>you don't
>>screw those up.
>
>This was going to be plan B...
>>
>>I am guessing that sysbackup restore is only trying to make
>>the VG definitions in the rootvg / system area and thus will not hurt
>>other VG's, but I would NOT have the other VG's live or
>>connected when I was doing this.
>>
>
>I think I will test a few things on spare 43P's before proceeding...
>
>>Hope that helped,
>>
>>Christopher M. Baker
>>Senior Technical Support Analyst
>>DSE/TCO
>>Goodyear Tire and Rubber Company
>>
>>=================================================
>>Contains Confidential and/or Proprietary Information.
>>May not be copied or disseminated without the expressed
>>written consent of The Goodyear Tire & Rubber Company.
>>=================================================
>>
>>
>>
>>
>> Marcelino Mata
>> <mmata@MULTIMATI To:
>>aix-l@Princeton.EDU
>> C.COM> cc: (bcc:
>>Chris Baker/NA/GDYR)
>> Sent by: IBM AIX Subject:
>>Correct procedure for restoring system image data
>> Discussion List
>> <aix-l@Princeton
>> .EDU>
>>
>>
>> 04/27/04 03:01
>> PM
>> Please respond
>> to IBM AIX
>> Discussion List
>>
>>
>>
>>
>>
>>
>>I am making preparation to move from AIX 4.3.3ML9 to ML11 then
>>AIX 5.1. As
>>I need to perform upgrades, I do not have enough disk space on
>>the current
>>4.5Gb O/S disks. I was planning on replacing the 4.5Gb disks
>>with 9.1Gb
>>disks. I was going to just use the user friendly program Sysbackup to
>>accomplish this. I made a system image of the rootvg ONLY and
>>replaced the
>>disks. Everything was going fine during the restore until it
>>informed me
>>that a volume group was missing and it wanted to know if
>>sysbackup restore
>>should create or delete it. The volume group is a 270GB RAID
>>volume which
>>are still present in the system but I do not want touched by sysbackup
>>restore. My guess would be to select the create option and
>>then it will
>>continue. As I can not afford to lose time due to errors I
>>did nothing (put
>>the old disks back in) until I get clarification on what it
>>was actually
>>going to do next. If I select "create", will it continue the restore
>>without me assigning any filesystem to it or will it force me
>to assign
>>something to it before continuing?
>>
>>TIA,
>>
>>Marcelino
>>
>
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