HPE Storage Users Group

A Storage Administrator Community




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: 3par balancing disks
PostPosted: Thu Jul 30, 2020 3:43 am 

Joined: Tue Feb 20, 2018 3:11 pm
Posts: 43
hello

so

3par 8400 2 nodes
HPE 3PAR OS version
Current 3.3.1.410 (MU2)+P32,P40,P45,P51,P52,P76,P80,P90,P93,P96,P111,P113,P115,P127

- the disks have an uneven distribution of disk space

for example
2020-07-30 11:08:25 MSK Updated PD 4 Devtype FC chunks free 975 total 1675 utilization 41%
2020-07-30 11:08:25 MSK Updated PD 12 Devtype FC chunks free 1228 total 1675 utilization 26%
2020-07-30 11:08:25 MSK Updated PD 13 Devtype FC chunks free 950 total 1675 utilization 43%
2020-07-30 11:08:25 MSK Updated PD 14 Devtype FC chunks free 1242 total 1675 utilization 25%
2020-07-30 11:08:25 MSK Updated PD 16 Devtype FC chunks free 951 total 1675 utilization 43%
2020-07-30 11:08:25 MSK Updated PD 17 Devtype FC chunks free 1217 total 1675 utilization 27%


when i try tunesys, its does not help

q:
how to balancing disks ?




sorry for my english


Attachments:
3par_disks.JPG
3par_disks.JPG [ 64.05 KiB | Viewed 13029 times ]
Top
 Profile  
Reply with quote  
 Post subject: Re: 3par balancing disks
PostPosted: Thu Jul 30, 2020 8:31 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1570
Location: Europe
How are they physically installed? If the hardware is unbalanced, the chunklets will be unbalanced.

_________________
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 balancing disks
PostPosted: Fri Jul 31, 2020 3:44 am 

Joined: Tue Mar 29, 2016 9:32 pm
Posts: 136
What are your CPGs configured like ? Have you restricted CPGs to particular disks ? Got an odd CPG config ?


Top
 Profile  
Reply with quote  
 Post subject: Re: 3par balancing disks
PostPosted: Wed Aug 12, 2020 7:45 am 

Joined: Tue Feb 20, 2018 3:11 pm
Posts: 43
contacted support

everything to be good

forgot to indicate what is used AO (tiering)

thx to all


Top
 Profile  
Reply with quote  
 Post subject: Re: 3par balancing disks
PostPosted: Wed Aug 12, 2020 10:47 am 

Joined: Mon Sep 21, 2015 2:11 pm
Posts: 1570
Location: Europe
terminus wrote:
contacted support

everything to be good

forgot to indicate what is used AO (tiering)

thx to all


I still find that very weird. AO works per node pair, not node. So the utilization should be equal on all drives in the same 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  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 


Who is online

Users browsing this forum: Google [Bot] and 44 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