Disaster Recovery in Legato -urgent

[JSiva]

Hi all,

This is very urgent and I expect a response from you all...

Due to some jukebox problem my support engineer came here and deleted legato networker and gave me the disaster recovery procedure.

But while trying scanner -B /dev/rmt0.1 with the default tape in rmt0.1, it says no bootstrap found.

How can I resotre my legato server, please it is very very urgent and important.

JSiva JSiva here...

 

[BW78]

are you sure that the boostrap is written on this tape?

how he deleted the Legato Networker?
Uninstall or erase

Did the support engineer make a copy of the resfiles, indexDB and mediaDB?

 

[gerudman]

If you have the files in /nsr/res as mentioned above, you haven't got any problem. Re-install Legato and copy those files back.

 

[JSiva]

hi Gerudman,

If I just copy the /nsr/res files from my System backup, will it be OK ?

I mean this is a AIX system with Legato Networker 6.1.1 and the Jukebox is DLT 7000 Tape library.

The support engineer uninstalled the Legato and deleted all the files under /nsr. But luckily I have the system backup and If I restore the /nsr/res files means will it work?

Thanks in advance

JSiva JSiva here...

 

[BW78]

A disaster recovry:

- Rebuild the Server
- Install Legato Networker Server/Client/StorageNode
- Configure the device
- Use scanner -B Device to find the bootstrap on a Tape
- Use mmrecov to restore the index


Copy the \nsr\res files from you backup
and restart services ist nearly the same

Good Luck!!

 

[rgzimmer]

Hopefully your engineer is no longer your engineer, but that's another story.

You will probably not be able to recover the way you suggest because of the way NetWorker backs up. Copying the nsr/res folder only gives you the configuration files. You would not get your media index or databases.

I believe your only hope is to find that bootstrap. You may need to scan every tape that was potentially written on the last backup cycle.

 

[ag100]

Hi,

You mentioned that you have access to a system backup? If you can restore /nsr/logs/messages, you should be able to get the bootstrap information from there.

Good Luck!

-ag100

 

[TDun]

If your system only had a jukebox problem, you could restore the entire /nsr directory from your backup and start teh services.
Once this is done, run mminfo -B.
This gives you a bootstrap report that will tell you the tape to use and the position on the tape that mmrecov will prompt for.
Now, stop Networker, delete teh nsr.res and nsrjb.res files and then load the tape identified as the last full bootstrap from mminfo -B.
(mount via the O/S, not Networker.
You will need to define a tape device pointing to teh tape drive, not necessarily a jukebox.
Then run the mmrecov command and answer the prompts from the output of mmrecov.
This will put thensrjb.res and nsr.res into the res.R directory.
Stop Networker again, copy these over the files in res and restart.