MSA 1060 iSCSI initiaotr connected ports problem

[adam900331]

Hy!

I have a MSA 1060 iSCSI storage and two HPE Hyper-V host (HOST1 and HOST2). The host connected through two Aruba 1960 switches in redundant connection. I configuring the initiator on the server sides, but now I checked the storage side connection and see the following:

The HOST1 connected ports A2, B1, B2

The HOST2 connected ports only B2 (and the MSA says this is not redundant)

The two servers iscsi configuration same. What cause this problem?

On the server side I added 4-4 path to the storage, when I run Get-IscsiConnection | ft, I see all path:

ConnectionIdentifier InitiatorAddress InitiatorPortNumber TargetAddress TargetPortNumber PSComputerName

-------------------- ---------------- ------------------- ------------- ---------------- --------------

ffffab86e38cf010-1 172.29.254.11 450 172.29.254.16 3260

ffffab86e38cf010-2 172.29.254.11 706 172.29.254.14 3260

ffffab86e38cf010-3 172.29.254.11 37314 172.29.254.15 3260

ffffab86e38cf010-4 172.29.254.10 1218 172.29.254.16 3260

ffffab86e38cf010-5 172.29.254.11 1474 172.29.254.17 3260

ffffab86e38cf010-6 172.29.254.10 1730 172.29.254.15 3260

ffffab86e38cf010-7 172.29.254.10 1986 172.29.254.17 3260

ffffab86e38cf010-8 172.29.254.10 2242 172.29.254.14 3260

[support_s]

System recommended content:

1. HPE MSA 1060/2060/2062 Storage Troubleshooting Guide

2. HPE MSA 1060/2060/2062 CLI Reference Guide

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[adam900331]

Sry, I cannot found relevant infromation which related to may problem.

[ArunKKR]

Hi,  Configuration seems to be correct as per the screenshot.  The guide  (pages 8-14) in the below web link has detailed steps to configure iscsi which I am sure you would have already followed:  https://www.hpe.com/psnow/doc/a00119216enw  Please have a recheck whether you have missed any steps.  You may try the below steps:

Ensure that the controller firmware is the latest version IN210P002.

Ensure that chap is disabled on MSA end, if its not being used.

Ensure that all the 4 controller iscsi host ports (A1,A2,B1,B2) have unique IP addresses.

1. Schedule a maintenance window for host server.

2. Delete all the sessions one by one.

3. Click on favorite targets. Delete all the entries listed.

4. Restart the server and add just the 8 sessions needed.

5. Ensure that favorite targets tab lists only 4/8 entries.

This will ensure that the correct iscsi session gets reconnected after every server restart and reconnects only 8 sessions.

You may validate the steps with Microsoft support team if needed.

Please note that I have quite limited expertise with windows OS and the suggestion is purely from MSA storage perspective.

[Cali]

The HOST1 connected ports A2, B1, B2

The HOST2 connected ports only B2 (and the MSA says this is not redundant)

Yes, because HOST2 only has one Path to B2.

Connect every Server to every Controller::

The HOST1 to ports A1, B1

The HOST2 to ports A2, B2

Cali

[adam900331]

From HOST2 connect to all MSA 4 ports, and there are 8 path to volumes from the server side:

[ArunKKR]

Hi @adam900331,

I came across a similar scenario recently.

Even though all sessions were showing up as connected, we could see only one link from MSA end.

Adding duplicate sessions helped to gain redundancy.

However, deletion of sessions was triggering unexpected behavior.

Final solution was to delete and recreate the sessions as I mentioned in my initial post.

You could try adding just one duplicate session from server 2 NIC 2 IP to A1 port IP and check whether MSA detects connection to A1 port in SMU.

[adam900331]

Hy!

Thanks Your comment. Did you also use one subnet for torgae connection?

Thanks.

[ArunKKR]

Hi @adam900331,

I had used different subnet for iscsi connections in our test environment for MSA 2060.

You may refer to the page 4 of the best practices guide for sample iscsi IP configuration recommended by HPE:  https://www.hpe.com/psnow/doc/a00105260enw

In your case single subnet should work as MSA 1060 has only 4 iscsi host ports in total.

[ArunKKR]

Hi @adam900331,
 
Let us know if you were able to resolve the issue.
 
If you have no further query and you are satisfied with the answer then kindly mark the topic as Solved so that it is helpful for all community members.

[adam900331]

Hello!

I haven't tried it yet.