Hi Managers,
First of all, many thanks to:
Dan Harrington
Kris Chandrasekhar
Hannes Visagie
Kevin McDonnell
Alan Nabeth
>From the inputs that I had, and from the Compaq support team, the
conclusion is yes it can be done, but some care is needed.
The settings to the MA8000 will be:
SCSI-2 mode
Fabric Topology
Tranparent failover mode
Zoning is required.
If You are interested in, further details, please read the document
Heterogeneous Open SAN Design Reference Guide (thanks to Kris
Chandrasekhar).
The original question an the replies follow below.
--------------------------------
Original question.
Hello Managers,
I would like to ask You, if is anybody sharing a MA8000, fibre
channel, between a TruCluster V5.1 and a TruCluster ASE V1.6.
There are any restrictions?
I still be able to boot the Trucluster V5.1 members from the
MA8000?
Is zoning required?
Many Thanks,
Pedro Cunha
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Replies.
Hello Pedro,
We don't use TruCluster technology, but we do share a number of HSG80
storage controllers amongst a group of 24 ES40's. I'd suggest using
different ranges of unit numbers and corresponding unit offsets (on the
connections) to segregate the systems, rather than get into zoning at
the
switch level.
Good luck!
Dan
---------------------------------------------
Pedro,
I recommend you to read the Heterogeneous Open SAN Design Reference
Guide
http://www.compaq.com/storage/san_index.html
for the limitations on using Tru64 UNIX in a SAN.
I do know that if you use multiple clusters in a SAN, you must have
zoning,
as per the SAN reference guide.
Regards,
Kris.
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These are my opinions only, and Compaq Computer Corporation bears no
responsibility for my opinion
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Hannes Visagie
Cant see any reason why not. We run 5.1, and WIN2000 off 2 HSG80
redundant
pairs with no zoning {SCSI mode 2} using 2 shared 16 port fibre
switches,
one for failover. This is assuming each cluster have there own
Quorum/var/root/usr disks.
Instead of zoning, we just use:
set d1 disable_access_path=all {Do this for all your units "dx"}
set d1 enable_access_path=!NEWCONxx
"!NEWCONxx" we rename to appropriate UNIX/WIN2000 server.
BTW, Had to number units for NT/WIN2000 from D1, D2, .... Cant skip
numbers.
-----------------------------------------------
Hi,
Your problem will be that 5.1 uses SCSI-3 and ASE (4.0F/G) uses SCSI-2.
This
will be a non-starter unless you want to uses SCSI-2 across the board.
Hope this helps.
Kev.
--------------------------------------------------
Alan
An MA8000 can be configured a lot of different ways. What
can be safely "shared" depends on the configuration. For
example, I wouldn't try to share the same logical unit
on the two systems. Having independent logical units
available to the different systems shouldn't be much of
a problem. Subsystem partitioned units of the same
storage set or disk are also something you may not want
to share.
I can't comment on "support". Support depends on a given
configuration having actually be qualified to verify that
it works and knowing what has to be done to make sure that
it does work. Mixing the two cluster versions is something
that may not have been tested.
------------------------------------------
William H. Magill
I don't have you hardware, (we have EMA1200/DRM for Tru64 with 4
Silkworms),
However, since there is zero commonality between TruCluster 5.1
and ASE 1.6, and in fact they have radically different I/O systems,
I would assume that the only way you can use things safely is
to zone them on the switch.
Also, technically, ASE 1.6 won't even run on Fibre Channel. 5.1 was the
first relase to actually support FC.
--
www.tru64unix.compaq.com
www.tru64.org
comp.unix.tru64
T.T.F.N.
William H. Magill Senior Systems Administrator
Information Services and Computing (ISC) University of Pennsylvania
Internet: magill_at_isc.upenn.edu magill_at_acm.org
http://www.isc-net.upenn.edu/~magill/
Best regards,
Pedro Cunha
(Systems Engineer)
Decsis - Sistemas de Informação, Lda.
Rua Pedro Hispano, 1329
4250-368 Porto
Portugal
Tel: +351 228349310
Fax: +351 228349319
Received on Fri Jun 08 2001 - 14:58:29 NZST