VMware

Bad performance of H700 in R710 with ESXi 6.0U3

I completely dispair and hope you guys can help me. I have the following IOPS Performance on my Windows VM. Below you also find screenshots of the configuration and Details of the physical machine. I am sure that machine can do better, but it just does not 🙁 PLEASE help!!!!

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https://preview.redd.it/fp0wcw97qu751.png?width=481&format=png&auto=webp&s=4c39ac2c91a0915e8bd9861576be6828d2765822

https://preview.redd.it/242kblicqu751.png?width=481&format=png&auto=webp&s=24326b9e5a1df42da227e71968b3da56f77e0f72

https://preview.redd.it/ypbkbktfqu751.png?width=479&format=png&auto=webp&s=22b7a3fc9c22bd83a1d1b3adfaaee1fe8637febd

https://preview.redd.it/xhtktvxusu751.png?width=883&format=png&auto=webp&s=6f45fa4d13355f492b08c2fc29430cf0f76b906e

DELL PowerEdge R710
72GB RAM
H700 SAS Controller with battery
8x SAS 500GB 6GB/s Disks ( ST9500431SS ) configured to one RAID10

ESXi 6.0U3 Dell-Image

2 Linux VMs
1 Windows VM

OpenManage gives me those Details:

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https://preview.redd.it/8ntvd2qrqu751.png?width=421&format=png&auto=webp&s=fb848aa39e513fee35ee57e47f1a5e83df1b7985

https://preview.redd.it/lyfcxr6zqu751.png?width=702&format=png&auto=webp&s=400404b0c8d768f368d39bf7cc7bd170835448de

https://preview.redd.it/zrp65ot6ru751.png?width=703&format=png&auto=webp&s=282ed33753e5c2be2e6c2fc4e1d3b4159b7e2554

https://preview.redd.it/bjuqbe3cru751.png?width=559&format=png&auto=webp&s=b0f5b7dbea2eb9314c039769e13fa913bba4deb6

https://preview.redd.it/2k8k78neru751.png?width=743&format=png&auto=webp&s=18ff55efb30f0c160a8f9b772c924947b5347d72

https://preview.redd.it/ql6b03dgru751.png?width=506&format=png&auto=webp&s=4dee0a29d8bbfde2a705a24e6c76fbddddf93b1d

https://preview.redd.it/cnaqpyfiru751.png?width=992&format=png&auto=webp&s=1550bec8971fa2bd4b068c34f66e58e4e17e137b

https://preview.redd.it/rebb32ckru751.png?width=991&format=png&auto=webp&s=a12f02c53b19cb420cfe1c97011d5162a46a5e4e

https://preview.redd.it/64ma8r3oru751.png?width=1301&format=png&auto=webp&s=8fb2b7ad2ab262fc0d77370305edbd6e839f4f58

https://preview.redd.it/yu9c8smpru751.png?width=928&format=png&auto=webp&s=88867f1376f830270c78c6b820289f496186c9e8

https://preview.redd.it/l79zew5xru751.png?width=1358&format=png&auto=webp&s=7aef159aae530ea3a7327232feefa89d7161776a


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2 Comments

  1. Not saying you can’t do better, but you have a low spindle count lower density 7200rpm drives. And you’re getting better than single drive speeds as far as I can tell. You didn’t post some completed runs though.

    Your writes are a bit off and probably should be higher. But that might assume RAID write cache with BBU.

    My guess is that a single drive of your type probably won’t even do 120MB/s (probably closer to 100MB/s) on seq read. And you’re getting 250-260MB/s on read, so, I’d say that’s pretty good.

    High density drives do better on seq read. So, my Win 10 VM test against a 7200rpm 2TB drive shows 144MB/s and 140MB/s seq read (corresponding to your 1st default run).

    Your read IOPs look ok for spinny disk with low spindle count. IMHO, your writes are off there as well though. You’re too close to single disk speeds on write IOPs.

  2. Perhaps you could use supported hardware and a version of ESXi that is not end of life? Would be hard to get any advice when using legacy equipment and EoL software.

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