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backup/restore with TSM-sysback

Posted on 2011-09-09
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Last Modified: 2013-11-17
HI

I've seen here a lot of AIXs that make a backup using TSM-Sysback. I have check on some of them the command smitty sysback and everything is working properly.  Questions:

Is this sysback backup booteable?
How can I restore an AIX from this tsm-sysback? From SMS menu? DOes TSM works like NIM in that way.

Thanks..
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Question by:sminfo
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by:woolmilkporc
ID: 36509289
Hi Israel,

I thought we've been talking about this in the past, or am I wrong?

Anyway, to perform a bare metal recovery there has to be a way to boot via network,
or you must create a bootable CD/DVD using the command "mksbcd".

You can use a simple network boot server for this (I believe such a thing is included in sysback)
which could run on the TSM server itself, or you could use NIM.

The drawback with a simple boot server is that it has to be at exactly the same level as the
client to be recovered, whereas a NIM server can be at the same or a higher level.

Use "smitty sysback" on either the Network Boot Server (e.g. TSM) or on the NIM server to perform the required setup.

To perform a bare metal recovery you're either going to use SMS to boot from the Sysback CD (if any) or you're going to use SMS to boot over the network (Classic boot server or NIM server, anyway). You will be presented a menu giving you the
option to restore your client from TSM. This is made possible because the boot image
constructed by Sysback contains a TSM BA client (Classic Server) or because you added the TSM/Sysback code to your SPOTs (NIM Server).

Here is an old Redbook (I think there is no newer version, but you could of course try to find one):

http://www.redbooks.ibm.com/redpapers/pdfs/redp3705.pdf

It has some really good descriptions, but doesn't mention the "mksysbcd" alternative, which wasn't available yet in those old days.

wmp



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Author Comment

by:sminfo
ID: 36509367
Hola  wmp

The main reason of this question is to backup and restore the NIM server from the TSM-SYSBACK.
Yes, we had talked about this but finally I want to test all this stuff. As you know, I'm now a NIM MASTER thanks to you and this forum :-).

So I 'd like to start with TSM stuff testing it because it's the only way to learn. So, I've asked to the  TSM guy to make a sysback of my "loved nim server" and he did it. Now I want to recover my NIM on other LPAR just to test if the TSM-SYSBACK he did works properly.

You talked about a sysback CD.. I believe there is no CDhere.
I also check if the TSM server has "simple network boot server" and It's not running there.

So, I don't know if this  tsm-sysback done to my nim server is well or not either if the TSM server is ready to use it to recover an LPAR from a sysback backup.

Thanks.

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by:woolmilkporc
ID: 36509432
Well,

if there is no CD the minimum you need is a server you can boot from.

You should ask your TSM guy what it's all about.
I can't imagine that this person would do Sysbacks over and over without having an idea how to restore them.

By the way, "simple network boot server" is just my personal, a bit offhand term. Indeed it's a tftp/bootp server.

The method I chose to protect my NIM is to create a bootable DVD now and then using mkdvd and to back up the server daily via normal TSM "incremental".
In case of recovery I'm going to boot from DVD to restore the rootvg. Since this rootvg contains the TSM client I'm then able to restore my datavgs and to bring the rootvg up-to-date from TSM.

wmp

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Author Comment

by:sminfo
ID: 36509478
Let see... YES, the "TSM guy" does not know there is a sysback cd...

This sysback-cd is created on the TSM server with the data of the lpar's sysback? Or it's a unique CD?

The NIM's rootvg has 19GB, so I'll need almost 5 DVDs to make the DVD backup... so, I want to see the tsm-sysback first..

And yes, I know the smple network server is a tftp/bootp but it's not running on the TSM sever.

I already setup TSM to make incremehtal backup to NIM.

And I'm completely sure our TSM server has bad setups and I want to get it worlking fine.. so be ready for TSM questions :-)
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by:woolmilkporc
ID: 36509546
Whooppee! TSM is my second best friend next to AIX!

This Sysback CD is created on the client (must have Sysback installed, of course).
You can make a boot-only CD not containing any user data which should sufiice to start the machine
and to give you the opportunity to restore the LPAR's Sysback.

But again, this "TSM guy" should indeed have an idea how to restore Sysback, DVD or not.
What should otherwise all this backup effort be good for?

wmp

 

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Author Comment

by:sminfo
ID: 36509630
well..

To tell the truth I don't know what's on his head.. but, I;ve realize he does not know almost anything of TSM or AIX. But forget the "TSM guy". I've ascended last week to senior administrator and I must know every software and applications in our company.

Every LPAR has syabck installed but not all make sysback backups to TSM.. so back on my NIM.. how do I create this sysback CD?.. That's just what I need... tart a new LPAR and restore from the sysback...
 
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woolmilkporc earned 500 total points
ID: 36509725
>> I've ascended last week to senior administrator<<

CONGRATS!

To your question:

If you have a local DVD writer:

mksbcd -f /dev/cd0 -t D -B

If there is no such device:

mksbcd -f /dev/cd0 -t D -B -S

This will leave a Rockridge image in /mksbcd/cd_image, which you can transfer to a machine equipped with a writer to burn it there using your favourite software.

You can also use "smitty mksbcd".

The menu item equivalent to the "-t" flag is "Media Type?",
the menu item equivalent to the  "-B" flag is "Create a Boot only CD/DVD? ",
the menu item equivalent to the "-S" flag is "Create the CD/DVD now?".

There are many more flags. Consult the manpage!

wmp
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Author Closing Comment

by:sminfo
ID: 36509733
really nice WMP... as usual!
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