All,
I'm in need of some help. I'm trying to figure out where to go with this. I recently setup a new cluster that's using a NETAPP LUN. When accessing the LUN as a mapped drive (before mapping as clustered storage) I get very fast performance. E.G. 900 MB/s xfer of files. Once I add the volume to the cluster (CSVFS) then it goes 10x slower. Max I've seen files transfer to the storage is at 140 MB/s. Guests also seem to suffer a bit in performance. Still usable but nothing like I expected.
Crucial info:
-Hyper-V server that i'm running the test from is the owner of the storage (role holder)
-MTU Size is 9000
*tested by using the ping -l 8000 -f trick
- block size is 64k
- MPIO is in use (2x 10 GIG connections)
I created a second lun and I indeed get full speed on the same ISCSI connection but only a fraction still on the CSVFS. What could I be missing? Any Ideas?
Edit 1: Forgot to add that i'm using intel NIC's not Broadcom. Saw issues related to those adapters. Tried out those troubleshooting steps for kicks and giggles but it didn't help. Plus some are not applicable due to new OS / NICs
I'm in need of some help. I'm trying to figure out where to go with this. I recently setup a new cluster that's using a NETAPP LUN. When accessing the LUN as a mapped drive (before mapping as clustered storage) I get very fast performance. E.G. 900 MB/s xfer of files. Once I add the volume to the cluster (CSVFS) then it goes 10x slower. Max I've seen files transfer to the storage is at 140 MB/s. Guests also seem to suffer a bit in performance. Still usable but nothing like I expected.
Crucial info:
-Hyper-V server that i'm running the test from is the owner of the storage (role holder)
-MTU Size is 9000
*tested by using the ping -l 8000 -f trick
- block size is 64k
- MPIO is in use (2x 10 GIG connections)
I created a second lun and I indeed get full speed on the same ISCSI connection but only a fraction still on the CSVFS. What could I be missing? Any Ideas?
Edit 1: Forgot to add that i'm using intel NIC's not Broadcom. Saw issues related to those adapters. Tried out those troubleshooting steps for kicks and giggles but it didn't help. Plus some are not applicable due to new OS / NICs