Host does not connect to all iSCSI targets

Hello

We use the IBM DS3524 SAN of s/w iSCSI initiator, and we have a weird problem.

First of all, we had 2 guests and recently set up a third.

From the beginning, our 2 original hosts had connection to 4 targets, using SRM.

With the third host it didn't connect to all 4 but only 2-3 boot at startup.

After the upgrade of all hosts to ESXi 5.0 U1 each host connects only to 2 targets.

Trying to ping from the hosts, only 2 targets are accessible, those he uses.

What seems to be is what port group is used, these targets are available and hosts use different paths, work if all the paths.

A port binding is 'Last active' and 'unused '.

Am I total evil that all hosts must have 4 connected, but passive targets 2, 2 active?

I'm afraid that the redundancy is compromised when having only 2 targets connected on 4.

Setting the configuration-screenshots.

I already talked to the support of IBM who checked the configuration and log files from the SAN and saw no problem there.

networking.png

static_discovery.png

storage_adapters_targets.png

vmhba35_network_conf.png

I think that you shouldn't have two interfaces of vmk on the same subnet. Configure a different subnet for vmk1 and configure 2 of your 4 targets accordingly. This should solve the problem.

Tags: VMware

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