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Firmware upgrade

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MicZell
Occasional Contributor

Firmware upgrade

Hello,

Has anyone ever had a firmware upgrade go bad? I know that it does one controller and then the other, but my manager is hesitant on the upgrade and wants me to get some information on a back out strategy.  I have done it before and they haven't even noticed, but some new procedures are in place.

Thank you

5 REPLIES
cbrasga24
Occasional Advisor
Solution

Re: Firmware upgrade

I've upgraded our two CS300's from 2.1.X through 2.3.16, so about 6+ firmware upgrades without any issues at all.

As for procedures we start with the DR array first, wait a few days, then do the production array using the following steps:

1. We verify dual connections for all hosts via Monitor > Connections.

2. Verify the array controllers have all connections up.

3. Perform upgrade.

4. Verify connections again.

N/A

Re: Firmware upgrade

Our practice is to upgrade our disaster recovery site first, give it a week to confirm performance, then upgrade our production.  In both cases the work has always been done in regular business hours.  No issues for us at this point.  We've gone through about 6 code upgrade cycles.  Each upgrade takes us about 15 mins to complete.  If you're not confident in your network and path failover capability then you probably want to do this with Nimble Support since they'll verify all of that with you before starting the upgrade.

MicZell
Occasional Contributor

Re: Firmware upgrade

Thank you so much for the replies. I haven't had any trouble in the past, but just thought I would ask.

jliu79
Frequent Advisor

Re: Firmware upgrade

When I upgraded from 1.4 to 2.x I did experience storage disruption, it didn't take long for it to recover but it did happen. Nimble support said it's because from 1.4 to 2.x is a major version change which caused it. That's the only time I had problem and all the rest upgrades went fine.

jrhall
Occasional Advisor

Re: Firmware upgrade

Only 1 time have I had an issue, and it did not affect production at all.  The web interface would not come back up after an upgrade (this was a while ago and I would have to dig up the specifics if you wanted details).  Support had to remote into my system to bring some web service up manually.  Never an issue since.