CLARiiON

Last reply by 12-08-2014 Solved
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Restarting a Storage Processor

Hi All,

A little background for you. This is a  CX4-480.

We had a faulted Standby Power Supply (Enclosure SPE SPS B.) This was repaired by our support company, however the fault persisted. They support company have said that we need to restart the Management Module for the error to clear. In this case Module B.

I am new to EMC products, can someone please advise the correct steps/best practice for restarting a storage processor please.

Thanks in advance

Will

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7538

give that a shot. Prior make sure all hosts are multipathed and PowerPath/MPIO is working correctly.

To reboot storage processor using Navisphere Manager:
  1. Open Navisphere Manager Enterprise Storage window.
  2. Expand the CLARiiON array.
  3. Right-click the SP that you want to reboot (for example, SPA)
  4. Select Reboot.
  5. Select Yes at the confirmation window.

LUNs will trespass automatically to SPA, they should trespass back to default SP after SPB is online. If not you can run this command to force them back to default owner:  naviseccli -h SPB trespass mine

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8 Krypton
7538

before restarting SPB, did they try to replace the cable that goes from SPS to SPB ?

7538

Hi Dynamox, Thanks for the reply. I have just sent the engineer back to our datacentre to change the cable. He has done so but the fault persists. He seems adamant that the SPB now requires restarting.

I believe this will involve trespassing the LUNs but any advise will be greatly appreciated.

Will

7539

give that a shot. Prior make sure all hosts are multipathed and PowerPath/MPIO is working correctly.

To reboot storage processor using Navisphere Manager:
  1. Open Navisphere Manager Enterprise Storage window.
  2. Expand the CLARiiON array.
  3. Right-click the SP that you want to reboot (for example, SPA)
  4. Select Reboot.
  5. Select Yes at the confirmation window.

LUNs will trespass automatically to SPA, they should trespass back to default SP after SPB is online. If not you can run this command to force them back to default owner:  naviseccli -h SPB trespass mine

7538

Thanks for taking the time to reply. We will be scheduling this to happen shortly. I will let you know the outcome.

7538

Was your question answered correctly? If so, please remember to mark your question Answered when you get the correct answer and award points to the person providing the answer. This helps others searching for a similar issue.

glen

7538

Just an FYI, be sure you have multiple HBA's, the proper HBA zoning, multi-path failover software installed and configured to handle the trespass situation before you reboot the SP or you could loose access to the LUNs by the hosts.

7538

Do we need to disable the Write cache when we do this?

7538

bharatdara23 wrote:

Do we need to disable the Write cache when we do this?

No you don't. Cache is 'protected', even if an SP fails. 

2 Bronze
2 Bronze
7538

Hi Guys,

Thanks for all your responses. I restarted the storage processor on Friday night. However the fault is still showing. My original question was about restarting the storage processor though. So I will mark it as resolved and award points.

It all went smoothly and connections to the storage did not drop at all as I trespassed all the LUNs.

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