Any issues with XtremIO upgrades from 4.0.15-20 to 4.0.15-24?

4.0.15-20 to 4.0.15-24 is an NDU (non disruptive upgrade) process. Dell EMC Support will run pre-upgrade checks in your environment to make sure we are aware of any potential issues before the NDU process starts.

Hi,

We have got this upgrade done (same versions) as there was an advisory recommending upgrade. We didn't faced any issues. Maybe EMC can suggest more on this.

Thank you, the above is great news, glad to hear your upgrade went smoothly.

Avi, thank you for your comment, and yes my earlier updates were NDU, but the 4.0.15-20 to 4.0.15-24 was NOT a NDU.

EMC did all the pre-checking and everything passed, but a production database crashed during the update.

I will update this post when I get the RCA results, because many things can cause issues during an update.

In my case the previous update was done less than 90 days earlier without issues.

I believe my hosts were all configured correctly, so that is why I was asking the community if anyone else has experienced issue with the specified version jump from 4.0.15-20 to 4.0.15-24.

I was very surprised the upgrade had issues because the previous upgrade had no issues at all.

4.0.15-20 to 4.0.15-24 is about as simple an upgrade as they come.  There are no "firmware" changes in this version, so there's no need to reboot any of the storage controllers - just a quick blip as we reload the new XIOS code, and that's it.

This is one additional step that the person carrying out the upgrade will do due to the fact that there wasn't an reboot, but that's completely transparent.

There's certainly no expectation of any problems for this (or any other) upgrades. Most of the times we see issues during upgrades it's down to things like multipathing or timeouts not being set correctly on the host, but I'm sure support will be working with you to try and work out exactly what went wrong in this case and get it fixed.  We're actually working on a set of scripts that will validate the host-sided configuration before an upgraded (or at any other time) to help avoid such issues - the one for VMware is in final testing, and (physical) Windows and Linux will follow shortly.

Hi Mdeitrick  and Scotthoward,  thank you for your input. 

EMC Support suggested I open a support case with the switch vender.  Which I have done and that investigation is taking place.  No root cause identified yet, but we are still digging. 

Just an update, the switch vender did not find any FC switch issues shortly before, during, and after the upgrade.

mdeitrick,

EMC support just requested I have the vender check for flapping on the port. No flapping was detected.

Regarding SR #

Service Request Number

07017682

Former Service Request Number

85818360

I am still waiting for official RCA.  Preliminary info that was provided.

Referenced two possible reasons for the Outage.

The AIX fix which public knowledge, I just did not know about it.

Make sure your  AIX systems have IBM IV87492: IMPROVE HANDLING OF ABORTED COMMANDS APPLIES TO AIX 7100-04 - United States  installed.

The other possibility that EMC referenced, was an XtremIO bug, but since the preliminary info has EMC confidential all over it, I will let someone from EMC disclose EMC bug issue and details.

EMC Final RCA indicates the issue was the missing AIX patch.  I have a XtremIO upgrade scheduled this week.  The upgrade scheduled this week is a bigger jump in code  4.0.2-80 to 4.0.15-24.  I have the AIX patch applied to the AIX servers.