Slow disk performance

[artu]

Hi,

I know that there was plenty of topics about the same, but I can't find a soluion 😕

I have a ESXI host: 6.5.0

Server config:

8x 2 TB SATA Drives (7200) RAID 50

64 GB RAM

2x E52620v2 CPU

I have insalled a VM - MS Server 2012R2, then I have checked Read and Write Performance - it was arround 50MB/s 😕 (AS SSD Bechmark)

Also I have made some test using IO meter:

I'm not an expert but I think smth is wrong 😕

What should do I to improve performance ?

BTW: I have a second similar server:

8x 6TB Sata drives, 1x 2602v2 CPU - host Hyper-V

I have checked performance: Read is about: 600 MB/s, write arround 180 MB/s

[batuhandemirdal]

Hi,

What database is installed on the server, do you use the database?

Have you made necessary firmware updates?

[artu]

Generally it is a fresh server… just with MS Windows na IO meter installed.

I didn't made any updates.

[artu · Accepted solution]

Problem has been resolved.

Problem was casued by RAID conroller itself. I have migrated data to another node, then insalled Win Srv  perfromance was the same arround 50MB/s. I had to reconfigure RAID 50 to RAID 10. Dont know why but when RAID 50 was used, WR and RD was arround 50, but with RAID 5  150 and 590 MB/s. Now I have a raid 10 and performance is arround 450 - 500 MB/s.

[admin]

im happy to find a correct answer In here

I was having the exact same problem with my disk and i couldn’t figure it out

I’ll try this manual, I hope it’ll work for me

moderator edit: removed irrelevant hyperlinks