As other have mentioned, a mksysb on AIX nicely accomplishes this.
During a mksysb restore, the kernal is booted off tape and temporary RAM
filesystems are used to hold a working stripped-down OS while the OS
filesystems are being restored. It then populates the boot logical
volume and writes the master boot record on the disk.
For a large number of systems, you can set up NIM (Network Installation
Manager) to essentially restore mksysb's over the network. NIM also
allows installation from fileset images. For Sun, there is Jumpstart,
which allows you to install the OS from install images like NIM; I don't
know whether it supports restoration from special system backups like
NIM does with mksysb's.
Cheers...
Bruce
Peter Gathercole wrote:
>
> A lot depends on the flavor of Unix that you are using. In theory it should be
> possible to hook a disk up to another server, partition it (if that Unix uses
> partitioning), make the filesystems, mount them onto the system in the correct
> heirarchy, but hung off another directory, and then restore the files using a
> target of the top of the new directory heirarchy. For example, you would mount
> the partition you wish to use as / as /othersystem, mount the partition that
> will be /usr as /othersystem/usr etc.
>
> You could then use "dsmc restore -fromnode=systemtorestore / /othersystem.
>
> You would have to do this for each filesystem or filespace.
>
> This is only half the story, however. It would be necessary to re-build
> whatever
> is regarded as the boot record for that flavor of Unix. This is almost
> certainly
> possible, but it would be necessary to know how to do it for that particulat
> Unix. I cannot tell you how to do this without knowing which Unix varient, and
> even then I may not be familier with that Unix.
>
> Peter Gathercole
> Open Systems Consultant
>
> Karen Krowzack wrote:
>
> > I understand that there is no "bare metal restore" capability for UNIX
> > systems. However, if a major filesystem(s) or disk is lost, is ADSM capable
> > of restoring a filesystem onto a replacement disk that you hook up to a 2nd
> > server? If so, how do you tell ADSM to direct the restoration of the
> > filesystem(s) solely to that replacement disk?
> >
> > Or is the only restore procedure in use the process whereby you boot from
> > bootable media, restore the major OS filesystems from tape and then restore
> > whatever else is desired from ADSM?
> >
> > Thanks as always for any ideas. They are truly appreciated.
> >
> > Karen Krowzack
> > IBM Global Services
> > Tieline 461, x7309
> > Outside phone - 312-394-7309
> > Pager: 800-759-8888, PIN 1967096
> > email: Karen.M.Krowzack AT ucm DOT com
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