Tuesday, February 8, 2011

Pre-planning for migration to Linux

As I work on this contract gig I was reminded again of how smaller shops may not be taking into consideration all the things you need to plan for when migrating from NetWare to Linux.  Things like DNS/DHCP being hosted on NetWare and the fact that you can't do an in-place upgrade.

DNS/DHCP on NetWare has a really nice management tool, unfortunately it didn't get ported to OES-Linux.  Best bet is if you have another method for hosting DNS/DHCP, such as Cisco gear, I'd suggest moving it off before doing a migration.

SLP is another thing you need to consider.  It's easier to create a second SLPDA on a new Linux box that is in place prior to migration, that way you can tweak it if need be without causing your end users a lot of downtime.

And then there's the tree CA that needs to be moved.  None of this is a big surprise though as we have been in migration mode for years.  I just haven't put together a full checklist yet.

The good news is the migration tool works really well, so move of data and such works awesome, it's just that you need another physical or virtual server to move to.  No in-place upgrades, sorry folks.

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