v8.0RC0 Mutiple HA LUNs per Target?

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jtmroczek
Posts: 20
Joined: Thu Aug 22, 2013 10:11 pm

Fri Mar 21, 2014 12:36 am

Hello:

I just went through some initial tests with v8.0 RC0. We were unable to find a way to create mulitple HA LUNs for a single target. Once a replication partner had been added to a device, there was no longer an option to add additional deivices. Also, attempts to add a replication partner to a LUN in a muliti LUN target caused a new target to be created.

Is this expected?

I had hoped to be able to have mulitple HA LUNs per target.

~joe
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Bohdan (staff)
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Joined: Wed May 23, 2007 12:58 pm

Mon Mar 24, 2014 5:00 pm

Yes, this is expected. HA targets work in single-LUN mode.
jtmroczek
Posts: 20
Joined: Thu Aug 22, 2013 10:11 pm

Mon Mar 24, 2014 8:34 pm

Are there plans to change this?

We have been delaying use of our v6 environment because of support for mulitple LUNs. It is very disappointing to find it not available for HA.

Managing paths for multiple targets is quite cumbersome. On our largest cluster there are 9 LUNs x 8 paths per target x 2 targets per HA instance x 3 hosts consuming the storage. This means managing 432 paths just for this cluster. Even a basic single instance of MS SQL failover cluster would have 4 LUNs.

~joe
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Bohdan (staff)
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Joined: Wed May 23, 2007 12:58 pm

Tue Mar 25, 2014 9:30 am

jtmroczek wrote:Are there plans to change this?

We have been delaying use of our v6 environment because of support for mulitple LUNs. It is very disappointing to find it not available for HA.

Managing paths for multiple targets is quite cumbersome. On our largest cluster there are 9 LUNs x 8 paths per target x 2 targets per HA instance x 3 hosts consuming the storage. This means managing 432 paths just for this cluster. Even a basic single instance of MS SQL failover cluster would have 4 LUNs.

~joe
Joe,
yes but unfortunately it will not be implemented in the nearest future.
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