3 Par OS Upgrade – Part 3 Upgrade Checklist

As I went through the HP 3Par 3.1.3 Inform OS upgrade process I created a checklist of the key steps for quick reference. I have shared it below, but please double check this list against the official HP documentation to ensure all points relevant to your environment and version are covered. Any comments or additions you would like to see on the checklist get in touch through Twitter

A) Pre-Upgrade Checks

1. Hosts

  • Check compatibility of components. You can complete this step yourself by using SPOCK or send off a completed host worksheet to HP who will verify the compatibility for you.
  • Apply Windows multipath patches :
    • KB275704 needs to be applied to Windows Server 2008, and 2008 R2
    • KB2821052 needs to be applied to Windows Server 2012 and Windows Server 2008 R2
  • Check MPIO is set to round robin on Windows 2008 servers using the native MPIO driver. The process using psexec is covered in this post under point 2.

2. SAN

  • Load must be below 50% at the time of upgrade. Run statcpu and statport and check utilisation is below 50%
  • Check current version is on upgrade path. showversion
  • Check the system is healthy. checkhealth
  • There are some version specific checks when upgrading from 2.3.1 or 3.1.1 to 3.1.2 check HP 3par OS 3.1.X Upgrade Pre-planning Recommendations for more information

B) Day of upgrade

1. Pre-Upgrade

  • Load must be below 50% at the time of upgrade. Run statcpu and statport and check utilisation is below 50%
  • If possible suspended tasks that would cause a heavy load eg backups
  • Stop AO, DO, and RC tasks before the upgrade. Plus stop anything else that interacts with the system such as scripts
  • Stop system reporter. Stop windows service – 3Par System Reporter Sampler Service
  • Showtask – and check for any DO activity
  • Stop any software that directly interact with the SAN e.g. Recovery Manager, scripts etc.
  • Stop RC
  • Check no one is logged in showuserconn
  • Checkhealth again. checkhealth -svc detail performs a full health check on the system
  • checkupgrade to verify if the system is ready to undergo an online upgrade.
  • Check current connectivity status of the hosts showhost -pathsum
  • All upgrades until after 3.1.3 are performed by HP, so next HP should install the update for you.

2. Post Upgrade

  • Check version is as expected showversion –a -b
  • Verify connectivity of hosts showhost –pathsum, plus check monitoring software attached hosts etc. for any potential issues
  • Restart suspended tasks setsched -resume_all . Check schedules running again showsched
  • Change Windows 2008 and 2012 to host persona 15 sethost –persona 15 servername
  • Remove default CPG. removecpg
  • Restart system reporter windows service (3Par System Reporter Sampler Service) plus any other software you stopped such as Recovery Manager
  • Resume backups and any other systems you suspended to reduce the load on the SAN
  • Check for new CLI and management console from FTP supplied by HP or software depot.  Check compatibility in SPOCK
  • Plus if you use any other 3Par software such as Recovery manager VSS provider etc check in the release notes for the latest version and then download via supplied FTP link from HP or from the software depot

 

Catch the full series of posts in which I ran through the upgrade process in detail: Part 1 

Part 2

3ParDude

 

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