HPE Storage Users Group

A Storage Administrator Community




Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Simultaneous Power Supply Failure in 4-node 7400
PostPosted: Fri May 10, 2019 8:38 am 

Joined: Wed Jan 16, 2019 4:26 pm
Posts: 37
Location: Florida
We lost both power supplies in one of the two controller enclosures. Apparently the system mandates at least one supply per enclosure so the entire array is down.

We proposed swapping supplies around (i.e. taking one of the supplies from the "good" enclosure) to get the array back online but HP level 2 support strongly advised against it as it would make the array "very unstable." We're following their guidance and we're taking a lot of heat from the business over this.

Anyone have experience with this sort of thing? Seems like this unit isn't nearly as resilient as we thought...


Top
 Profile  
Reply with quote  
 Post subject: Re: Simultaneous Power Supply Failure in 4-node 7400
PostPosted: Fri May 10, 2019 10:44 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1570
Location: Europe
If you have two node enclosures with the same type of PSUs I would swap.

I'ld rather have two enclosures with no redundancy than a system that is down.

As for redundancy, the 3PAR has a hardware design with no single point of failure. You had two failures in the same failure domain.

My experience is that PSU doesn't fail often. I don't think I have one system lose a total of 2 PSUs..... during the entire life span.

_________________
The views and opinions expressed are my own and do not necessarily reflect those of my current or previous employers.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 


Who is online

Users browsing this forum: No registered users and 41 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group | DVGFX2 by: Matt