How to move boot disk to XP (587 Views)
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Occasional Contributor
Vandee Chimcherd
Posts: 5
Registered: ‎04-02-2009
Message 1 of 15 (587 Views)

How to move boot disk to XP

Hi Expert

We have superdome connect to XP via SAN. Space of internal disk is not enough to do swap(memory around 250 Gb) so we want to move everything on boot disk to XP.

Not sure if it possible? Are there any concern to perform this task?

Honored Contributor
Suraj K Sankari
Posts: 1,659
Registered: ‎09-09-2008
Message 2 of 15 (587 Views)

Re: How to move boot disk to XP

Hi,

Take a image of your xp using 3rd party tool. then restore into another disk.

Suraj
Valued Contributor
Mark S Meadows
Posts: 94
Registered: ‎10-31-2007
Message 3 of 15 (587 Views)

Re: How to move boot disk to XP

Hi Vandee,

Yes it can be done, but has its pro's and con's with regard to booting via a SAN disk.

Have a look at this previous thread.

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1113509.

Regards,

Mark
Administrating HP-UX systems for more years than I care to admit, but still enjoying it (most of the time!).
Honored Contributor
Fabio Ettore
Posts: 1,738
Registered: ‎11-19-2003
Message 4 of 15 (587 Views)

Re: How to move boot disk to XP

Hi,

yes, you can do that but consider to consult the following Fibre Channel Support Matrix to know which kind of cards support the boot:

http://www.docs.hp.com/en/10260/FCI-SM-td3.htm

HTH.

Best regards,
Fabio
WISH? IMPROVEMENT!
Valued Contributor
Mark S Meadows
Posts: 94
Registered: ‎10-31-2007
Message 5 of 15 (587 Views)

Re: How to move boot disk to XP

Try this link as the above appears not to be working :

http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1251969913504+28353475&...

Regards,

Mark
Administrating HP-UX systems for more years than I care to admit, but still enjoying it (most of the time!).
HP Pro
melvyn burnard
Posts: 6,068
Registered: ‎04-06-1997
Message 6 of 15 (587 Views)

Re: How to move boot disk to XP

What OS version are you using?
If 11.23 or 11.31, then consider using DRD to clone your internal disk to the XP LUN.
man drd
My house is the bank's, my money the wife's, But my opinions belong to me, not HP!
Occasional Contributor
Vandee Chimcherd
Posts: 5
Registered: ‎04-02-2009
Message 7 of 15 (587 Views)

Re: How to move boot disk to XP

Thank you all reply with a good link

to burnard : Server is 11.31 but I never heard about DRD before. I'll search for detail. Thanks again


Trusted Contributor
Jorge Pons
Posts: 406
Registered: ‎06-18-2001
Message 8 of 15 (587 Views)

Re: How to move boot disk to XP

Hi

I Think Ignite coulb be a good option to recreate VG00 in XP disk.
It´s probably you must verifiy firmware version for boot from SAN.

Regards, Jorge
Acclaimed Contributor
Torsten.
Posts: 23,303
Registered: ‎10-02-2001
Message 9 of 15 (587 Views)

Re: How to move boot disk to XP

DRD would be a good solution, but you can also consider to LVM mirror the boot disk to XP, remove the mirror from local disks after this is done. This will be done without any downtime.

Hope this helps!
Regards
Torsten.

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Exalted Contributor
Steven E. Protter
Posts: 33,806
Registered: ‎08-15-2002
Message 10 of 15 (587 Views)

Re: How to move boot disk to XP

Shalom,

Possible, not a great idea.

Boot off local disk and you have tools to diagnose a problem with the SAN.

boot of san and you have nothing.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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Acclaimed Contributor
Torsten.
Posts: 23,303
Registered: ‎10-02-2001
Message 11 of 15 (587 Views)

Re: How to move boot disk to XP

BUT - if you have redundant SANs and a XP behind, if there is no connection between server and XP you have much bigger problems than this server down, because both SANs would be down (this must be a dead datacenter then).

So IMHO this is such unlikely that you can safely configure your boot disks on a XP array.

Hope this helps!
Regards
Torsten.

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Honored Contributor
Duncan Edmonstone
Posts: 5,678
Registered: ‎08-05-2000
Message 12 of 15 (587 Views)

Re: How to move boot disk to XP

oh jeez... haven't we done this one to death already?

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1176739

My rules for SAN boot are unchanged - its fine, it's supported and it works great but remember:

1. Have a good reason for doing it.
2. Have a tested plan for diagnosing issues (how do I get to an OS prompt without the SAN?)
3. Make sure you have at the very least a veto on SAN changes as part of your change management process and ideally complete control over the SAN
4. Only use versions HBA/driver/firmware/switch/disk configurations supported by HP - if your switch/disk array isn't from HP then make sure you get the vendors agreeement that they will support boot from SAN issues


HTH

Duncan

HTH

Duncan
Acclaimed Contributor
Torsten.
Posts: 23,303
Registered: ‎10-02-2001
Message 13 of 15 (587 Views)

Re: How to move boot disk to XP

I have configured many different hp-ux servers to boot from SAN (either XP arrays or mirrored EVAs - just for safety :-)), most of them are running a lot of vPars, so you just cannot have sooo many independent local disk shelfs. There was never a problem to boot or continue to run servers, even if a complete SAN fails (planned) or a whole (smaller) array was offline. As said, as long as you have a single path through independent SANS to your disks there is no problem at all for the server.

Hope this helps!
Regards
Torsten.

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those who understand binary, and those who don't.

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Honored Contributor
Fabio Ettore
Posts: 1,738
Registered: ‎11-19-2003
Message 14 of 15 (587 Views)

Re: How to move boot disk to XP

Hi,

I suggeste reading also this thread opened by me few years ago where I proposed a discussion about what means to have boot disk in SAN:

http://forums13.itrc.hp.com/service/forums/questionanswer.do?threadId=602789


HTH.

Best regards,
Fabio
WISH? IMPROVEMENT!
HP Pro
melvyn burnard
Posts: 6,068
Registered: ‎04-06-1997
Message 15 of 15 (587 Views)

Re: How to move boot disk to XP

Personally I always prefer internal or a physical boot disk, rather than SAN, but that is my personal opinion.
As already stated, either is suported.
As far as DRD is concerend, it is quicker, easier than an Ignite image, as you simply create a clone of your boot disk, while the server is running, and then reboot to that clone.
If it fails, or gives problems, you simply reboot back to the origional boot disk.
DRD takes care of all the bits and pieces that you have to manually do, like idisk and mkboot etc.
It also decides whcih Volume Manager you are using, and creates the clone the same way.
I have used it many times to do this.
Also, if you WERE to wanta clone that is also mirrored, and you have MirrorDisk and an additional LUN, DRD will create the mirror at the same time!

It is free, you do not need a licnse for it.
Take a read of:
http://docs.hp.com/en/5992-6590/5992-6590.pdf
and the relevant documents around DRD
My house is the bank's, my money the wife's, But my opinions belong to me, not HP!
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