Summary: Cluster on Ultra10

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Date: 2 Jul 2003 06:43:20 -0000
To: sunmanagers@sunmanagers.org

Hi,

   Got a lot of information from here. Thanks to
joe.fletcher,Eugene Shmidt, Mahesh Gurugunti, Mazhar khan, Tony
Irvine, Reggie Beavers and all other who have replied. Most of
them have agreed as to we can have a cluster on a Ultra 10. The
multipack is going to be a small doubt. I will suggest for a D1000
which is dual hostable and not very expensive. some Answers posted
are as below:

In that case, as long as the thing supports dual-hosting
you should be ok. If it's one of the newer units there
won't be a problem. Assuming you are using direct-
attached you just need to change one of the initiator ids
on one of the hosts from 7 to 6 (and ensure there isn't
a drive on unit 6 in the array) and away you go.

If you are testing for a larger solution the alternatives
are Veritas Cluster Server, Legato Availability server and
obviously SUNcluster. It's just a question of cost vs
functionality.

Cheers
Joe.fletcher

I have 2 node cluster 3.1 on Ultra 10 with Ultar2 as my 2nd
node... works
just fine. For testing purposes.

Just get a multipack with 6 disks or so.

Mazhar Khan.

My suggestion would be to get 2 x U10's, 2 x Unipack/Multipacks, 4
x PCI
SunSwift Adapters (X1032A: 10/100 Mbs ethernet port and 1 x Ultra
SCSI SE
port on one card).

This will allow for 2 x Heartbeats and 2 x SCSI ports per host, on
SEPARATE
cards (A very strong recommendation, also in all the cluster
docs).

You could also configure more than one public interface per node,
allowing
for failover if you have a redundant network. This will do
auto-failover
between network ports.

If you have only one network and this requirement, add another
10/100
network card (X1033A - PCI Sun FastEthernet card), or a quad card
(X1034A)
if you have more than one network.

One word of caution:
Check with your local Sun support office if under maint. In some
geo's Sun
does not like this config and blame everything that goes wrong on
it on the
SCSI being dual-initiator config. They could also insist that all
calls be
logged via Veritas first ...?

However, if you wish, you coudl contact SUn Professional Services
and
convince them the U10 is adequate. They also source (and at a fee)
deploy
Veritas Cluster Server (VCS).

Regards

Eugene

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