How to Get the Serial Number for Your 3Par

Getting the serial number for your 3PAR is one of those regular things you will need to do when you call HPE. What you will find with the 3PAR is that it has 2 serial numbers. A 3PAR and HPE Serial number. This blog has over 150+ 3PAR posts be sure to check out this collection of the best 3PAR posts.

3PAR Serial Number

The 3PAR serial number is easy to find and there are several ways to do it:

Command line - showsys

SSMC – From the main menu select Systems, then in the General area you will see the serial number

3PAR Management Console – as soon as you log in to the GUI you will be taken to the dashboard view and you will see it here as the third item down on the right, shown in the screenshot below.

HPE Serial Number

When you call support they always seem to need to convert the 3PAR Serial number into a HPE one and then log the case. So to save time you can get the HPE serial number by running from the CLI:

shownode -i –svc

Under the nodes section of the output you will see the HPE serial numbers listed as scalable serial.

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Failed Chunklets

In the 3 Par system rather than a whole disk being shown as failed you can just see individual chunklets that have done so.

I saw the following in the GUI, under System and Summary

I investigated further via the command line to see which physical disks contained the failed chunklets. I saw all 3 failed chunklets were on the same disk.

showpdch -fail

Once I had seen this I decided to proactively evacuate all the data from disk 28 so it can be removed.

servicemag start -pdid 28

Double check its running in the background

servicemag status

Interestingly I was told by the second HP engineer a disk is not considered failed until it has 6 failed chunklets. I would say the decision of when to proactively hotspare out a disk is down to personal discretion.