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Sh0ckWave
Contributor
Contributor

iscsi problem - help/advice sought

Hi,

I have two VMFS volumes on an iscsi NAS. I'm having problems discovering the volume from ESX 5.0 and was hoping someone might help me to resolve this issue.

The behaviour I'm seeing is as follows:

1. The NAS can see that the volumes are commected to the IP of the esx host.

2. vmkping <NAS ip> works

3. ping <NAS ip> works.

4. nc -z <NAS ip> 3260 works fine.

5. esxcli storage core path list shows the local storage only and not the iscsi paths.

I'd appreciate it if someone can help me to understand & resolve this issue.

Regards,
David

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haiiampc
Enthusiast
Enthusiast

1. Disable Firewall also and test (to avoid firewall issues - run below command on Service console)

# esxcfg-firewall --allowIncoming --allowOutgoing (Need to run on every restart or add to Startup scripts during T.shooting)

Good idea is allow iSCSI port traffic to exceptions (for long run)

2. Below KB should solve (watch video for basic setup)

http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&docType=kc&externalId=1008083&sl...

3. Double check (on iSCSI Storage side - Whether LUN is presented to your ESX host vmkernel ip - not to the Service Console IP)

Regards - Purna

If it helps --> Please award points - as appropriate - "Correct" or "Helpful"
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Sh0ckWave
Contributor
Contributor

Hi,

Thanks but that hasn't really moved things forward. I've checked the associations on the NAS side and it is associated with the vmkernel ip address.

I also looked into the firewall settings on this server and noticed that outbound iscsi wasn't enabled. I have now enabled this but the remote volumes are still not mounted.

Are there some cli commands that can throw more light on this?

Regards,
David

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Sh0ckWave
Contributor
Contributor

Hi,

Can anybody help with this?

Regards,
David

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haiiampc
Enthusiast
Enthusiast

iSCSI / FC --> both are Block Devices --> Should be detected by below commands

(If everything is configured on ESX properly & iSCSI LUN's presented to ESX)

--> esxcfg-mpath -l

--> esxcfg-scsidevs -l

Regards - Purna

If it helps --> Please award points - as appropriate - "Correct" or "Helpful"
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Sh0ckWave
Contributor
Contributor

Hi,

Sorry for not reply for a while. I've been unavailable. The output of those commands is attached.

Regards,
David

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