I created 2 LUNs, mounted as drive M and N via iSCSI, for copy test. (also tried to copy via cifs , but still works poorly)
While ODX is disabled, I copied a 50GB file from M to N , via File Explorer, it started at 2xx Mb/s and then down to even 1x MB/s some time later.
While ODX is enabled, still copied a 50GB file in same drive(no matter iscsi or cifs) , via File Explorer, sometimes it went up to 1.x GB/s and sometimes went down to 2xx MB/s.
How can it be so slow without ODX ?
Why the transfer rate didn’t keep stable 1.x GB/s as I seen in the YouTube demo https://www.youtube.com/watch?v=mFfAEEwNuUQ ?
What can I do to find out the root cause?
Thanks in advance.
Randy
My test environment:
FAS2240: 12x2TB SATA total, 3 for root aggr, and 9 for RAID-DP
Server: Dell PowerEdge R720
OS: Win2012r2 AD Server (clean installation) , Qlogic-10Gb card
Communication: direct attach through UTA 10Gb
In Win 2012r2 ,I use this command to disable ODX. "set-itemproperty hklm:\system\currentcontrolset\control\filesystem -name "FilterSupportedFeaturesMode" -value 1"
I also use "fltmc instances" to verify every filter supports ODX.