[SOLVED] Perfomance Issues with HP SE316M1 + P410 incl. BBU

[Phinitris]

Hello,
thanks. Can you also post your strip sizes?

hpacucli ctrl all show config detail

 

[blowfish]

this is for raid10 on sata 7200prm drives

 

[cymech]

Hmm, we now convert the Raid to 64k stripe size. before we use 256/512. i dont understand what is our problem, nearly the same HW and same configs. But 5 server with bad performance. unbelievable..

 

[Phinitris]

Seems like we fixed it by converting the RAID to 32KB/64KB strip size.
We are getting speeds up to 700 MB/s and over 1k iOPS.

Thanks for your help

Best regards
Henry

 

[mir]

large strip size favor sequential reads which is not the normal usecase for virtualization.

 

[cymech]

yes, we dont look at it, 256k is the standard setting from the hp controller. now we learn it.

 

[TheeDude]

Seems like we fixed it by converting the RAID to 32KB/64KB strip size.
We are getting speeds up to 700 MB/s and over 1k iOPS.

Thanks for your help

Best regards
Henry

Hello!

Sorry to bring up and old thread, but I am having the exact problem with a ML350 G6 Server with a P410 Smart Array card.
I am running a Raid 5 Local Drive, with 3x4TB disks, and have extremely poor VM performance.

CPU BOGOMIPS: 11730.00
REGEX/SECOND: 1291119
HD SIZE: 22.79 GB (/dev/sda2)
BUFFERED READS: 1.82 MB/sec
AVERAGE SEEK TIME: 29.69 ms
FSYNCS/SECOND: 197.30
DNS EXT: 83.81 ms

As you can see I have also 256/512 KB strip size.

Logical Drive: 1
Size: 7.3 TB
Fault Tolerance: 5
Heads: 255
Sectors Per Track: 32
Cylinders: 65535
Strip Size: 256 KB
Full Stripe Size: 512 KB

Can I do this conversion online, or do I have to boot HP ACU utility. (Array Configuration Utility) ?

 

[fireon]

hpacucli is your friend. https://deepdoc.at/dokuwiki/doku.php?id=server_und_serverdienste:hpacucli

 

[TheeDude]

Yes, I tried to do it with hpacucli but I didn´t manage to find the right command, so I downloaded the HP ACU iso and booted up.
Just started a migration for a couple of minutes ago, as you can see on this picture.

So I guess i´m on the right track!

But, this will take really long time I guess!
Can I exit and reboot the computer, and resume normal operation, or do I need to wait for it to finish?

 

[Phinitris]

@TheeDude It's better if you don't reboot your server. It should be safe but unless you have backups I do not recommend to restart the host while the array is transforming.

 

[TheeDude]

Hello again!

Too bad this didn´t help me at all.

CPU BOGOMIPS: 11729.98
REGEX/SECOND: 1439153
HD SIZE: 22.79 GB (/dev/sda2)
BUFFERED READS: 1.23 MB/sec
AVERAGE SEEK TIME: 19.91 ms
FSYNCS/SECOND: 188.75
DNS EXT: 72.97 ms