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| tunesys and disks capacity https://3parug.net/viewtopic.php?f=18&t=540 |
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| Author: | alarkiko [ Sat Jan 11, 2014 5:40 pm ] |
| Post subject: | tunesys and disks capacity |
Hi. I have a 7200 with 52 900GB 10K hard disks, the average of disk occupation was 62%, all volumes are thin provisioning with total of 24TB, the CPG Allocated Capacity is 25TB. On last Wednesday I installed new 20 900GB 10K hard disks. After install HDs, I executed tunesys with default options and today it has completed the process but the allocate percentage is 89% and some of disk have 99% The volumes/CPG and thinly provisioned volumes graphs show 50TB of space occupied. I don't understand this situation, I supposed when I add new hard disks the data split across all disk distributing all of information. |
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| Author: | alarkiko [ Sun Jan 12, 2014 10:47 am ] |
| Post subject: | Re: tunesys and disks capacity |
After reviewing all configuration and remembering the task I did, the problem is that all of the GPC change RAID 5 to RAID 1. After installing the hard drives, I can change the speed to 10K rpm from automatic in CPGs because I read this best pactice before running tunesys, and I don't know if I change or not the type of RAID RAID 1 (default) to RAID 5 (existing) Now the tunesys is running again. Thank you very much |
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| Author: | zQUEz [ Mon Jan 13, 2014 1:29 pm ] |
| Post subject: | Re: tunesys and disks capacity |
Wait, so you were 62% space utilized, you add some disks and kicked off tunesys, and you came in Monday to find it now >90%? ..... I bet that was a pucker moment! LOL ... good catch on the changing RAID levels. |
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