Am 01.04.2011 um 09:44 schrieb Andrew Beekhof:

> On Mon, Mar 28, 2011 at 9:08 PM, Miles Fidelman
> <[email protected]> wrote:
>> Hi Folks,
>>
>> I'm getting ready to upgrade a 2-node HA cluster from Debian Etch to
>> Squeeze.  I'd very much appreciate any suggestions regarding  
>> "gotchas"
>> to avoid, and so forth.

Etch -> Lenny -> Squeeze

The Lenny -> Squeeze upgrade works fine, if you have a clean Lenny- 
installation.
I.e. you first must upgrade to Lenny.

>>
>> Basic current configuration:
>> - 2 vanilla Intel-based servers, 4 SATA drives each

If you have Intel e100 NICs, then you will experience problems with  
the non-free firmware drivers. The e1000 works fine.

>> - each machine: disks set up as 4-drive md10, LVM
>> - xen 3.2 hypervisor, Debian Etch Dom0
>> - DRBD 8.2, Pacemaker linking the two nodes
>> - several Debian Etch DomUs

Same problem here (many Dom0 and DomU with different Debian/Ubuntu  
versions - Etch, Lenny, Hardy).
I do not want to risk the problems Etch ----> Squeeze, even not on the  
development (used for programming and test) machines.

Lenny to Squeeze was nearly without problems (Dom0 and DomU).

DRBD 8.2 (since 8.3.2 api:88/proto:86-88) should work with the other  
node having DRBD 8.3.7 (api:88/proto:86-91) -- theoretically.

BTW:  If your hardware is as old as the software, then think about new  
hardware.

Helmut Wollmersdorfer

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