Solaris to Linux backup server

Question

I am using NW 7.3.2 on Solaris backup server. I am migrating to Linux operating system as backup server using same Networker Version. I thought the process should have been very simple: install NW on linux server, copy res, mm, index & logs from old Solaris NW server to new Linux NW server and use it as is but when I do this, indexes and resources are perfect but mm gives errors on the media database. Unable to mount /nsr/mm/mmvolume6 and reduces the size of mmvolume6 drastically. It does nto show any entries in Media->Volumes. Please suggest if I am following the right procedure and how do I get this done.

Hari5 · Accepted Answer

I haven't exactly done the same thing, though I did migrate from Solaris to TRU64. The trick here is not to copy the indices and media database. Try restoring them from NW backup media using mmrecov for the bootstrap and nsrck -L7 for the client file indices. That worked for me.

dpinink_silva · Answer

I thought this kind of migration would only be possible if both systems use the same filesystem format, is this the case?

amediratta · Answer

I need to check on the filesystem but then even index and other resources should have had some problems.

ble1 · Answer

This is classic little-endian vs. big-endian issue.There is a way around this (which I personally didn't test), but officially it is not supported I believe.

ble1 · Answer

Platform transfer is about licenses I believe.

In theory, you could dump mdb and load it on new server from dump by using uasm command. And that's what should work, but as I said I never really tested it so be careful. Make a test before.

amediratta · Answer

I am not sure if it is supported or not but they sell Platform transfer from Solaris to Linux and hope it means it is supported. Support charges money for this.

Can you help me with the workaround anyway?

amediratta · Answer

mmrecov has worked for me. We are testing some backups and then we will test some recoveries.

ble1 · Answer

mmrecov does same thing in the background I believe... even there have been instances where this has been reported as not successful at all.

amediratta · Answer

I had earlier done this once from HP-UX to Solaris with copy-paste and it worked perfectly well for the last around 1 year.

ble1 · Answer

Yes, but both are big endians. Do google search on that subject and you will get an idea of what I'm saying here.

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