Have you tried a smaller VM? Are average transmission rates all slow?
Thanks for your reply.
Yes, all transfer are slow between datastores, whatever the VM's size.
But i noticed that uploading or download on datastores from desktop PC is good (~110MB/s)
Makes it even stranger..
A little bump of this thread..
I saw in the vmk warning log something like:
"ScsiDeviceIO: 1199: bla bla sata device :Deviceperformance has deteriorated. I/O latency increased value etc"
This line repeats several times with latency always bigger, and then:
"NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device bla bla sata device state in doubt; requested fast path state update..."
I dont know if this could be related to my problem.
I also read that the native vmw_ahci driver sometimes causes problems.
Should i switch to the legacy linux driver?
I'm a bit afraid to make this move...
Thanks again for your replies!
Thread bump again..
Just to say that i tried to disable the native esxi driver and let the legacy one to load.
No change in speed in datastore or between datastores.
I give up on this
Not exactly sure what this means:
I did the copy with the datastore management.
But FWIW, after reading this thread I suspect that the WD Blue disk is not performing well in your config.
Wil| Author of Vimalin. The virtual machine Backup app for VMware Desktop Products
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Sorry for late answer..
I meant to copy file with the datastore's files manager. The one on the web interface.
The WD Blue disk is old but functionnal. No SMART error or anything.
I did installed GhettoVCB and made a script to backup all the VM.
With GhettoVCB it copy at a constant 96MB/s which is pretty good.
I think that when i do copy VM with the datastore's file manager, the system inflates VMDK files, hence the slow rate and long time copy.
Thanks again for your replies and have a nice day!