Hello Managers !
I got one answer from Udo de Boer who states that my plans (see below)
are OK. I've also heard from the german StorageWorks publications chief
of staff that the 8 hosts limitation may be lifted some day in the near
future (some month?) and perhaps can already be ignored (without
having any warranty then...). But we will not be the ones who try that
first... :-) I also found out that zoning is an absolute must to separate
the 2 OS from each other for the Tru64 - Solaris case.
As some people have asked me for a detailed summary, I will report our
configuration as a short guideline when we've got it (hopefully) working
next week.
------------------------------------
Udo de Boer wrote:
This is possible and you don't have to do anything special on the cluster. The
cluster is smart enough to see all attached file systems and share them. See the
local attached disks remarks in the manuals. But I would check with Compaq if
there are newer software version or patches to the HSG80 software to allow all 8
es40's to access the disks. There are more versions of the software. Maybe a
newer driver on the SUNs will help.
------------------------------------
Original question:
> We have to install an 8 ES40 TruCluster 5.1 with an attached EMA 12000
> (FibreChannel). All Tru64 partitions on all three controllers should be
> visible and accessible to all servers via one common cluster filesystem
> (so we have automatic synchronisation of all filesystem caches).
>
> An additional quirk is that on one of the 3 controllers 3 Suns have to
> have their own partitions. According to specs, this limits the access to
> that controller to max. 8 servers total. But we need access to some
> (Tru64) partitions on that controller from all 8 ES40, making up to
> a sum of 11 accessing servers.
>
> My plans are now:
> 2 controllers are Tru64-only, so any of the 8 ES40 can access
> any partition there on (direct access, multibus failover) ==> no problem.
> The third controller has additional Solaris partitions, and access is
> granted to 3 Sun Servers via one FibreChannel switch (zoned). The same switch
> enables access of two of the ES40 to those Tru64 partitions which
> should be exported into the cluster filesystem. Those ES40 are then
> configured as servers for those partitions in the cluster filesystem.
>
> Is this configuration possible ? How must we configure those two special
> servers ?
--
Dr. Udo Grabowski email: udo.grabowski_at_imk.fzk.de
Institut f. Meteorologie und Klimaforschung II, Forschungszentrum Karslruhe
Postfach 3640, D-76021 Karlsruhe, Germany Tel: (+49) 7247 82-6026
http://www.fzk.de/imk/imk2/ame/grabowski/ Fax: " -6141
Received on Wed Jul 11 2001 - 15:42:43 NZST