topic Ignite a new server to a single disk preserving one of the old root disks. in Operating System - HP-UX

Ignite a new server to a single disk preserving one of the old root disks.

Josiah Henline — Wed, 14 Jun 2006 08:31:30 GMT

I have an Ignite tape from a mirrored system, 11.11 N4000. I want to Ignite another server from that tape, but I only want to use a single drive.

The plan is to upgrade an 11.0 server on one of the root disks and import the other disk as another VG to move the system specific files back into place.

I believe this plan is possible and already have the Ignite tape at the remote site; however, the Ignite menus are somewhat confusing. I need to know how I can specify which single disk the new 11.11 image is laid down on. Being that the tape was taken from a production 11.11 system, it was not in that CUs best interest to reduce the VG to a single drive before running the Ignite tape.

Re: Ignite a new server to a single disk preserving one of the old root disks.

James R. Ferguson — Wed, 14 Jun 2006 08:35:29 GMT

Hi:

Choose Instal HP-UX/Media Only and toggle the advanced installation mode when you launch Ignite.

On the "Filesystems" tab, choose "Add/Remove Disks". De-select the disks you don't want to use and specify the single disk of your choice on which to construct vg00.

Regards!

...JRF...

Re: Ignite a new server to a single disk preserving one of the old root disks.

Torsten. — Wed, 14 Jun 2006 08:36:20 GMT

In fact, an ignite restore writes only to 1 disk. You have to mirror by yourself, ignite doesn't. To reduce the chance to make mistakes, you may remove one disk while installing and set up.

Re: Ignite a new server to a single disk preserving one of the old root disks.

Josiah Henline — Wed, 14 Jun 2006 08:41:50 GMT

Removing the disk is not an option. This install is being done remote.

Torsen,
Ignite does install the lvols on one disk, however it will pvcreate any of the disks that are specified as part of VG00. If one disk is not present it will choose the first available disk an pvcreate it as part of VG00.

James,
Will that keep the disk from being pvcreat'ed?

Re: Ignite a new server to a single disk preserving one of the old root disks.

DCE — Wed, 14 Jun 2006 08:43:23 GMT

Assuming the drive id big enough for the image, Ignite will only use one drive. Use the advanced options to customize the install. (mirroring is not an option - must be done after the fact)

Be aware of two things from experience -
Ignite will probably give the new system the old systems name and IP address - you may have to interrupt the initial boot and change them in order to avoid conflict with the original system

Any additional VG's on the original system will be created on the new system. Do a vgexport on them to gid rid of them.

Re: Ignite a new server to a single disk preserving one of the old root disks.

Torsten. — Wed, 14 Jun 2006 08:46:02 GMT

Remove is the option to clear any doubt ;-)

If you interact with the installation screen, you can select the target disk - this is leaving other disks unchanged.

You can modify the complete vg configuration here.

Re: Ignite a new server to a single disk preserving one of the old root disks.

Patrick Wallek — Wed, 14 Jun 2006 08:55:38 GMT

If the disk is not included as part of VG00, then it will not be touched.

You will just need to verify that only the disk you want to install on is set to be part of VG00.

Re: Ignite a new server to a single disk preserving one of the old root disks.

Josiah Henline — Wed, 14 Jun 2006 09:17:17 GMT

Thank you all for your help. Any other advice or instruction is welcome. I will assign points next week after the upgrade.

Thanks again,
Josiah

Re: Ignite a new server to a single disk preserving one of the old root disks.

Josiah Henline — Thu, 15 Jun 2006 08:51:57 GMT

James gave me the information I needed. I was able to verify it on a test server.

Thanks for your help.
Josiah