ZFS 7420
Hello ,Does anyone know of any performance issues with fibre channel on ZFS 7420 storage ?
The issue is that without LUN cache enabled , it seems we are bound to 30 MBytes/sec.
After enabling LUN cache , the throughput raised to 120 MBytes/sec .. which is still slow for a FC disk .
After 30 mins , the throughput dropped to 10 MBytes/sec , without any intervention .
And then after another 30 mins , it increased back to 120 MBytes/sec.
We don't experience problems on Infiniband/NFS, i.e. 1.4 GBytes/sec.
The host (for FC), is a Hyper-V Windows Server with a virtual machine using a scsi disk , pass-through.
Thank you for any hint.
The issue is that without LUN cache enabled , it seems we are bound to 30 MBytes/sec.
After enabling LUN cache , the throughput raised to 120 MBytes/sec .. which is still slow for a FC disk .
After 30 mins , the throughput dropped to 10 MBytes/sec , without any intervention .
And then after another 30 mins , it increased back to 120 MBytes/sec.
We don't experience problems on Infiniband/NFS, i.e. 1.4 GBytes/sec.
The host (for FC), is a Hyper-V Windows Server with a virtual machine using a scsi disk , pass-through.
Thank you for any hint.
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