I believe that Govind did precisely that as part of the Great RHUL Migration.
In any case, the first and most important caveat is always: the head
node must maintain the same FQDN. (It doesn't matter if the ip it
resolves to changes.)
IIRC, there are some technical caveats concerning avoidance of
complications transitioning from MySQL4 to a MySQL5 database (which is
what you'll be doing, considering the versions of MySQL on SL4,5), but
these are covered in the MySQL documentation in more detail than I can
remember them, so I won't do you the disservice of garbling my advice
to you at present.
Sam
On 14 July 2010 10:52, Matt Doidge <[log in to unmask]> wrote:
> As a kinda-related aside, has anyone recent experiance doing a DPM
> headnode OS upgrade, with a database dump/restore onto a fresh SL5 DPM
> install? We'll be embarking on this adventure soon and would like be
> forewarned of any gotchas anyone else may have seen (and perhaps
> wikified...).
>
> cheers,
> Matt
> (just back from taking his cat to the vet - my apologies to Sam and
> Brian for not attending the storage meeting today)
>
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