xsan with two controllers

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xsan with two controllers
by Borko Grujic on Nov 20, 2011 at 6:59:39 pm

Hi,

Here is the situation:
-Server 1 (should be address book, login accounts, calendars, mail, etc) also should be secondary (standby) xsan controler for metadata
-Server 2 just xsan primary controller

I managed to setup Xsan on Server2 only when server1 is shutdown
If I turn ON Server1 Xsan goes down, shutdown Server1 all is nice again.

There are no IP conflicts, they are on a separate networks, they can ping each other fine, share files ...

As an earlier test setup I ran everything from Server1 (mail, chat, calendars and Xsan) and I could not authenticate Server2 either as a client or controler
Looked like Xsan went down as soon as I booted Server2

Any ideas?

Is there anything I should do when I introduce second server into network? Also I could see both servers from the client, looks like they don't tollerate each other

Also I rechecked Xsan administration guide http://images.apple.com/xsan/docs/Xsan_2_Admin_Guide_v2.3.pdf
On page 21 it says

Xsan: Select “Configure as Xsan Metadata Controller or Client.”
Xsan Computer Type: Select “Configure as Standby Xsan Metadata Controller.”

This thing never showed up anywhere during installation... installed two servers today, haven't seen that one pop up.

Thanks,
B.

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Re: xsan with two controllers
by Dave Klee on Nov 21, 2011 at 1:44:39 am

Hey Borko, if you set the servers up separately, it's possible your two metadata controllers have configurations that are conflicting with each other.

I would:
-Make sure all your Xsan data was backed up (if you need any of it)
-Uninstall Xsan on Server 1
-Make sure Server 1 doesn't show up anywhere in the Xsan interface when you are using Xsan admin (make sure Server 1 is definitely not part of the Xsan, and if it shows up, remove it forcibly)
-Make sure the Xsan works fine this way on other computers, including Server 2
-Re-install Xsan on Server 1
-Join Server 1 to the Xsan as a client (NOT a controller at first)
-Make sure Server 1 can use the Xsan, mount the volume, and is happy (along with all other computers on the Xsan)
-Promote Server 1 to be a backup Metadata controller

If you've already tried this procedure, then I'd start looking at networking issues (both public and private).

Good luck and post back with questions.

Dave

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Re: xsan with two controllers
by Borko Grujic on Nov 21, 2011 at 8:51:40 am

Hi,
I figured it out.

Procedure that I used:
- Create xsan (admin) accounts on Server1, Server2, client (just to make life easier)
- Install Xsan on Server1 (create San with one client and one controller)
- In Server app on Server1 enable Device management (remember directory server admin username and pass, you will need it in next step)
- Join Server2 to Server1 Network Account Server (User and Groups -> Join..., use directory server admin username/pass)
- From Server1 Xsan management add Server2 to Xsan. Now you can authorize it without problems)
- Make Server2 Controller

Easy... after couple of days trying :)

I still can not make either controller Primary or Secondary
It now works, tried turning off servers just to see if it breaks... it does not :)

Speed is good (test disks are older), group permissions are great, overall much better control than what we have now.

B.

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