First of all, TSM is only an application that runs on OS. It is not a
super software that can work for all types of machines for all ages of OS.
It must work with OS to call file system to read/write files. Therefore, a
disaster recovery plan must have a COMPATIBLE machines at DR site. If a
production site is running W2K on P4 with UTP 10BaseT Ethernet card and I
don't believe DR site will use a 286 machine with BNC card. Not only W2K
may not work not a 286, one may not be able to find a network driver for
this machine. I believe the basic requirement for a DR is to have
COMPATIBLE machine that can boot up with the same OS version, same type of
tape drive and sufficient disk space to restore data. I wouldn't expect my
Window XP server running on P4 to be able to start up on IBM AT with 640MB,
right ? So the planning of DR is to have compatible machines, not
identical machines.
The way to set up DR for TSM is to have a compatible machine with the same
OS version, patch level, same type of tape drive. Install TSM on it. If
anything happened on TSM at production site, just restore TSM database and
it will be fine. It is not necessary to have identical machine, but you
have ensure that you have the same OS version, patch level, same TSM
version and already configure the tape drive/library. For example, you can
have a RAID disk for TSM server at production site but non-RAID disk as TSM
server for DR site. TSM does not carry about RAID because it is OS level,
NOT TSM level. So can have different machine in this sense.
Thanks & Regards
William
|---------+---------------------------->
| | Salak Juraj |
| | <[email protected]|
| | T> |
| | Sent by: "ADSM: |
| | Dist Stor |
| | Manager" |
| | <[email protected]|
| | .EDU> |
| | |
| | |
| | 23/01/2003 22:34 |
| | Please respond to|
| | "ADSM: Dist Stor |
| | Manager" |
| | |
|---------+---------------------------->
>--------------------------------------------------------------------------------------------------------------------------------------------|
|
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| To: ADSM-L AT VM.MARIST DOT EDU
|
| cc:
|
| Subject: Re: NT restore to different hardware
|
|
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|
|
>--------------------------------------------------------------------------------------------------------------------------------------------|
Hello Raminder,
It is not that simple.
Do not get confused with reasons for
this problem - this is definitely an operating system related issue,
and not one of backup software.
Some procedures for disaster recovery on different hardware
are described on microsoft web site but are NOT supported.
Their limitations are almost independant on backup software.
It is even not sure if you will be able to perform
installation of today´s operating system
on a computer from 2008,
so why would you expect it from a backup software?
Basically you complain about only one particular dependency among many
others:
- your data depends now as well as in 5 years on all of:know-how,
application, organisational issues (passwords!)
- applications depends on know-how and on operating system
- operating system depends on know-how and on hardware
- not to speak about cross-dependencies with other applications, network,
legal regulations..
No backup software will ever be able to backup all of it,
you only can create your backup for your particular configuration.
maximalistic solution:
if this problem is important enough,
keep copy of all dependant parts,
like data,
manuals, passwords, access lists,
SW installation media,
SW installation and configuration description,
a n d quite naturally a copy of hardware as well.
best regards ;)
juraj Salak
> -----Original Message-----
> From: Braich, Raminder [mailto:raminder.braich AT DAVEY DOT COM]
> Sent: Thursday, January 23, 2003 3:00 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: NT restore to different hardware
>
>
> Looks like there is no easy way to do a restore to different
> hardware. What
> happens if there is a disaster and you cannot get your 5 year
> old server
> from anywhere. How is TSM going to restore to that server! To
> me it looks
> like TSM is very good at taking backups and managing them but
> in the restore
> department I have serious doubts.
> How are other people doing their disaster recovery exercises?
> Do you keep
> identical hardware at DR site also? What happens if you need a faster
> server?
> There have been references to Redbook SG24-4880, however,
> this redbook tells
> you how to do a restore on identical hardware only.
>
> All comments are welcome..
>
> Thanks
> Raminder Braich
> SAP/Oracle DBA
> The Davey Tree Expert Company
> Kent, OH, 44240.
>
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