UNSOLVED
MD3600i speed issue
Dear All.
I've problem with MD3600i Array (iSCSI). I've inside 8 pcs. of ST3000NM0023 disk.
Currently for testing purposes array is configured in RAID 10.
Although I read best practice docs, and browse similar problems in forums, I still have problem.
The point is the array working very slow, when I copy vm disk to array it is coping with 200 - 250 Mbit/s speed. Windows is showing diffent speed for few seconds (probably buffers) but I can see i task manager real speed, as I said 200 - 250 Mbit/s
When I copy example harddisk image back to the computer, speed is much better approximatelly 1800 - 2600 Mbit/s.
I've changed switch, I switched on flow-control, jumbo frame (on array and switch and Server), few diferent cmoputers and systems including 2012 R2 Server and 2019 Srv, changed NIC from broadcom to Intel, firmware is updated on disk and on array to newest but speed is not changed.
I've problem with MD3600i Array (iSCSI). I've inside 8 pcs. of ST3000NM0023 disk.
Currently for testing purposes array is configured in RAID 10.
Although I read best practice docs, and browse similar problems in forums, I still have problem.
The point is the array working very slow, when I copy vm disk to array it is coping with 200 - 250 Mbit/s speed. Windows is showing diffent speed for few seconds (probably buffers) but I can see i task manager real speed, as I said 200 - 250 Mbit/s
When I copy example harddisk image back to the computer, speed is much better approximatelly 1800 - 2600 Mbit/s.
I've changed switch, I switched on flow-control, jumbo frame (on array and switch and Server), few diferent cmoputers and systems including 2012 R2 Server and 2019 Srv, changed NIC from broadcom to Intel, firmware is updated on disk and on array to newest but speed is not changed.
Can you advice something ?
