HPE Storage Users Group

A Storage Administrator Community




Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: 3PAR power supply fan issue
PostPosted: Thu Jan 05, 2023 2:19 pm 

Joined: Thu May 28, 2020 5:31 pm
Posts: 6
Hello,

We have a 4-node 3PAR 8440.

We are showing a power supply 0 fan failure, but SSMC is showing that fan 1 is red instead of 0. Shouldn't fan 0 be red instead? We also attempted to replace power supply 0 and it gave an error about the power supply being unsupported, even though the model number of the replacement was correct. As a result, we put the old power supply back in before any overheating could occur. Thanks for any input.


Attachments:
3par power supply.png
3par power supply.png [ 18.39 KiB | Viewed 966 times ]
Top
 Profile  
Reply with quote  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Fri Jan 06, 2023 5:03 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1469
Location: Europe
Okay. So SSMC is saying fan1 error. What is saying fan0 ?

What does "showcage -d" in CLI say?

Are you running a current firmware (on the system/cages)?

_________________
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  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Fri Jan 06, 2023 9:21 am 

Joined: Thu May 28, 2020 5:31 pm
Posts: 6
Hello,

Cage info is shown below, thanks.

Id Name LoopA Pos.A LoopB Pos.B Drives Temp RevA RevB Model FormFactor
3 cage3 2:1:2 0 3:1:2 0 24 25-27 4082 4082 DCS8 SFF

-----------Cage detail info for cage3 ---------

Position: ---
OverallState: Degraded

Interface Board Info Card0 Card1
Firmware_status Current Current
Product_Rev 4082 4082
State(self,partner) OK,OK OK,OK
VendorId,ProductId HP,DCS8 HP,DCS8
Master_CPU No Yes
SAS_Addr 50050CC10F95A33E 50050CC10F954F3E
Link_Speed(DP1,DP2) 12.0Gbps,Unknown 12.0Gbps,Unknown
Locate Off Off

PS PSState ACState DCState Fan State Fan0_Speed Fan1_Speed Locate
ps0 OK OK OK Failed HiSpeed undefined Off
ps1 OK OK OK OK HiSpeed HiSpeed Off


-------------Drive Info-------------- --PortA-- --PortB--
Drive DeviceName State Temp(C) LoopState LoopState
0:0 5000cca06cb57307 Normal 26 OK OK
1:0 5000cca06cb3d437 Normal 26 OK OK
2:0 5000cca06cb56013 Normal 26 OK OK
3:0 5000cca06cb36beb Normal 25 OK OK
4:0 5000cca06cb39d4f Normal 25 OK OK
5:0 5000cca06cb3894f Normal 25 OK OK
6:0 5000cca06cb431d3 Normal 26 OK OK
7:0 5000cca06cb51003 Normal 26 OK OK
8:0 5000cca06cb3721b Normal 26 OK OK
9:0 5000cca06cb394df Normal 26 OK OK
10:0 5000cca06cb26db3 Normal 26 OK OK
11:0 5000cca06cb27ceb Normal 27 OK OK
12:0 5000cca06c35caf7 Normal 26 OK OK
13:0 5000cca06c2f886b Normal 26 OK OK
14:0 5000cca06c35ddcb Normal 26 OK OK
15:0 5000cca06c35dfe7 Normal 26 OK OK
16:0 5000cca06c2eda6f Normal 25 OK OK
17:0 5000cca06c356c2f Normal 25 OK OK
18:0 5000cca06c357a6b Normal 26 OK OK
19:0 5000cca06c3582cb Normal 26 OK OK
20:0 5000cca06c3580e3 Normal 26 OK OK
21:0 5000cca06c2f3877 Normal 25 OK OK
22:0 5000cca06c35cd83 Normal 26 OK OK
23:0 5000cca06c35bc67 Normal 26 OK OK


Top
 Profile  
Reply with quote  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Fri Jan 06, 2023 2:39 pm 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1469
Location: Europe
Do you have an active support contract?

I have a bad feeling someone needs to dig deep into some logs here. I'm assuming that installing any working power supply from somewhere else in the system will cause the same error. In that case you probably have a faulty cage (mid-plane), IFC or both.

Replacing a cage is a little more than rip and replace. At least if you care to keep the system online.

_________________
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  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Fri Jan 06, 2023 5:15 pm 

Joined: Thu May 28, 2020 5:31 pm
Posts: 6
We don't have a support contract with HP. We do have one with a 3rd party but it's hardware only. We were hoping the power supply that we had ordered may have just been bad so we've ordered a couple more in the off chance that one will work. My initial confusion came from the discrepancy in SSMC when it said that PS 0 fan had failed but it showed fan 1. One question I have :

Does each PCM have one fan or two? Because it lists PS0 with Fan 0 and Fan 1, and PS1 with Fan 0 and Fan 1 which makes me think there's a total of 4 fans per cage (2 in each PS).


Top
 Profile  
Reply with quote  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Sat Jan 07, 2023 2:29 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1469
Location: Europe
SSMC also lists failed fan in both PSUs so that makes me think either cosmic glitch in SSMC or most likely something more in the logs than what is presented.

I’m pretty sure you’re right about the number of fans per PSU. If there was only one and it failed, your PSU would be toast right now due to heat.

You can easily eliminate your theory on getting a failed PSU by tryinga working one from another cage.

_________________
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  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Thu Jan 12, 2023 2:43 pm 

Joined: Thu May 28, 2020 5:31 pm
Posts: 6
An update on this. When the tech initially replaced PS0, he got an error in SSMC about the power supply being unsupported. However, this also triggered an alert in SSMC that PS1 was also unsupported. Is that normal? When he put the old PS back into slot 0, the PS1 error resolved itself. We have ordered two more tested and verified functional power supplies to attempt replacing PS0 again but I wanted to mention that one bit of info.

Assuming the issue remains, we will have to look into cage replacement. We don't have enough spare space to relocate all the chunklets to the other 3 cages in the array, so it will be interesting.


Top
 Profile  
Reply with quote  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Fri Jan 13, 2023 2:22 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1469
Location: Europe
bshaffer wrote:
An update on this. When the tech initially replaced PS0, he got an error in SSMC about the power supply being unsupported. However, this also triggered an alert in SSMC that PS1 was also unsupported. Is that normal? When he put the old PS back into slot 0, the PS1 error resolved itself. We have ordered two more tested and verified functional power supplies to attempt replacing PS0 again but I wanted to mention that one bit of info.

Assuming the issue remains, we will have to look into cage replacement. We don't have enough spare space to relocate all the chunklets to the other 3 cages in the array, so it will be interesting.


If you insert a PSU that isn't identical as the other installed PSU it will be listed as unsupported. So if PS0 was different from PS1, then PS1 would start complaining.

One option for cage replacement is to add a new cage, move drives one by one or in pairs and dismiss the "failed" cage in the end.

_________________
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  
 Post subject: Re: 3PAR power supply fan issue
PostPosted: Thu Jan 19, 2023 12:58 pm 

Joined: Thu May 28, 2020 5:31 pm
Posts: 6
We ended up replacing PS0 with a verified/tested PSU and the errors went away. All green for fans in SSMC and the showcage command lists all fan speeds as "low". I did confirm there are two fans per PSU. I still have my suspicions so I'm keeping an eye on it but so far so good. Thank you for the assistance.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 


Who is online

Users browsing this forum: No registered users and 17 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:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group | DVGFX2 by: Matt