Hi guys,
I tried out the built in SAS ports in my Supermicro X9DR3-LN4F+-B over the weekend and the performance has been very bad.
Connecting to a 4TB Seagate SAS drive. I added this disk as a datastore. Create a VM HDD using this disk for a Win10 guest VM.
Copying speed to this HDD is ridiculously slow at around 5mbytes/s. SATA HDD under the same configuration gets me 80mbytes/sec.
I am pretty sure the HDD is not an issue (it works fast if connecting to a M1015 SAS ports). What's going on with Supermicro X9DR3-LN4F+-B built-in SAS port under ESXi 5.5? The motherboard is new in box. I just plugged it in and didn't do anything special as far as built in controller configuration.
If I am missing drivers or anything, please let me know.
Thanks
I tried out the built in SAS ports in my Supermicro X9DR3-LN4F+-B over the weekend and the performance has been very bad.
Connecting to a 4TB Seagate SAS drive. I added this disk as a datastore. Create a VM HDD using this disk for a Win10 guest VM.
Copying speed to this HDD is ridiculously slow at around 5mbytes/s. SATA HDD under the same configuration gets me 80mbytes/sec.
I am pretty sure the HDD is not an issue (it works fast if connecting to a M1015 SAS ports). What's going on with Supermicro X9DR3-LN4F+-B built-in SAS port under ESXi 5.5? The motherboard is new in box. I just plugged it in and didn't do anything special as far as built in controller configuration.
If I am missing drivers or anything, please let me know.
Thanks