PROXMOX and IO Speed ? low

darknessends

Hi,

I am receiving following scores on serverbear for IO. Disk is RAID 10 - SEAGATE 15K SAS -600GB x 4.

I am not sure if this is okay ? I feel this is way low for what it should be.

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Attached devices:
Host: scsi0 Channel: 02 Id: 00 Lun: 00
  Vendor: LSI      **Model: MR9240-8i **       Rev: 2.13
  Type:   Direct-Access                    ANSI  SCSI revision: 05

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I/O Pings

10 requests completed in 9048.1 ms, 214 iops, 0.8 mb/s

I/O Seek Test (No Cache)

ioping -RD
445 iops, 1.7 mb/s
min/avg/max/mdev = 0.2/2.2/12.0/1.5 ms

I/O Reads - Sequential

ioping -RL
1564 iops, 391.1 mb/s
min/avg/max/mdev = 0.4/0.6/10.0/0.7 ms

I/O Reads - Cached

ioping -RC
245363 iops, 958.4 mb/s
min/avg/max/mdev = 0.0/0.0/0.1/0.0 ms

DD

**dd if=/dev/zero of=sb-io-test bs=1M count=1k conv=fdatasync
11.4679 s, 93.6 MB/s

dd if=/dev/zero of=sb-io-test bs=64k count=16k conv=fdatasync
10.9435 s, 98.1 MB/s

dd if=/dev/zero of=sb-io-test bs=1M count=1k oflag=dsync
23.4417 s, 45.8 MB/s

dd if=/dev/zero of=sb-io-test bs=64k count=16k oflag=dsync
172.715 s, 6.2 MB/s**

FIO
Read IOPS   1822.0
Read Bandwidth  7.2 MB/second
Write IOPS  1599.0
Write Bandwidth 6.3 MB/second 

AnthonySmith

Try to give us less information about your specific set up, then perhaps we can help, please be as vague as possible.

Thanks.

AnthonySmith

Morning,

Having read my comment the next day I decided I was a bit harsh.

Please confirm your write cache settings, that will probably be a start.

syscentral

Have you used the search form in the Proxmox VE forum ?
There is a thread about your card http://forum.proxmox.com/threads/9552-RAID-Controller-LSI-MegaRAID-9261-8i?highlight=lsi+mega+raid

darknessends

@syscentral : Very well said - No drivers for more than Deb 5.0, what to do now?

darknessends

@AnthonySmith : this doesnt has a cache.

syscentral

Ask LSI if they can help for example. The support team from lsi is very helpfull.

Raymii

@syscentral said:
Ask LSI if they can help for example. The support team from lsi is very helpfull.

They've provided me with a firmware hack/upgrade, magicly making my HBA into a full fledged RAID

darknessends

@Raymii : HBA ??

Raymii

@darknessends said:
Raymii : HBA ??

Host Bus Adapter (AKA SATA Expander)