Cloning of ServiceGuard clustered, SAN-attached server onto non-clustered, Standalone server.

[David Griffiths]

Hello All,

Here it is - I have a Production HP server, with SAN-Attached (EMC Symmetrix) disk for SAP/R3 & Oracle within an MC/ServiceGuard environment (2-node cluster, 1 package).

The requirement is to get a clone of the Production server in question, plus the data onto one, non-SAN attached, non-clustered HP server.

The existing Prod server does not have an Ultrium drive, but the new server will.

My (overall) plan is to:

1. Get HP to install an Ultrium drive on the existing Prod server.

2. Create an interactive bootable Ignite (make_tape_recovery) archive on 'n' Ultrium / LTO tapes (200GB) of ALL available volume groups.

3. Ignite the NEW HP server with the previously created interactive Ignite archive.

4. HP engineer to remove Ultrium drive from existing Prod server, and replace into the server it was 'sourced' from!.

5. Uninstall and remove all MC/ServiceGuard software & configurations from NEW HP Server.

My understanding is that the interactive Ignite archive will allow me to 'fit' the VG's onto the Local disks within the new server, where before they were defined on SAN disk.

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Is this a sane way of fulfilling the requirement?

I am really trying to avoid having to install SAP/R3 and Oracle, plus re-creating all the required VG's / LV's etcetera - plus as always, the customer wants the work done YESTERDAY!

Any input will be gratefully recieved and points awarded.

Cheers,

Andrew Austin.

[Sridhar Bhaskarla]

Hi Andrew,

If you have 200GB available freespace anywhere, then I would use 'make_net_recovery' to do the work for me. I will not be dependent on the tape. It's real easy to setup an ignite server and take the image. With tape, there is no guarantee that it will live completely until it extracts 200GB of data.

-Sri

[Patrick Wallek]

In theory this should work. I am not sure about the Ultrium tape drive being bootable though.

I would make sure that, if possible, your Oracle / SAP DB's are down, or at least in backup mode. Otherwise the DB's on the Ignite tape will be pretty near useless.

[Geoff Wild]

Why ignite it all? If you don't need MC/SG in new environemnt and it's not SAN attached.

Just build the new server - create all the vg's/lvols by hand - then just restore the data you need. (IE Oracle, /home, etc...)

Rgds...Geoff

[G. Vrijhoeven]

Hi Andrew,

This could work if you have can connect the new server to the EMC.
I would ignite vg00 on the old server and restore it on the new ( same hardware?? if not just install the OS ) import the existing volumegroups on the new server and use LVM to mirror all the data to the new disks (save an online) Once mirrored split the mirror again by reducing the EMC disks
Done!

Gideon

[David Griffiths]

Thanks to all for the replies - much appreciated.

In response to some of the points raised so far:

The new server will not be SAN-attached, and will also be on a different network, so I will not be able to use existing EMC EDM backups or use SAN disk to restore to the new server after an Ignite/UX restore.

Time has also dictated that building the server from scratch is not an option, hence the plan to use Ignite to capture both the underlying HP-UX configurations, plsu the data in one fell swoop.

Cheers,

Andrew Austin.

P.S Check your points contributers.