[OmniOS-discuss] iSCSI poor write performance

[Dan McDonald]

> On Sep 9, 2015, at 12:24 PM, Martin Truhlář <martin.truhlar at archcon.cz> wrote:
> 
> Hello everybody,
>  
> I have a problem here, I can’t move with. My Windows server runs as virtual machine under KVM. I’m using a 10GB network card. On this hw configuration I expect much better performance than I’m getting. Two less important disks uses KVM cache, that improve performance a bit. But I don’t want to use KVM‘s cache for system and databases disks and there I’m getting 6MB/s for writing. Also 4K writing is low even with KVM cache.


So you have windows on KVM, and KVM is using iSCSI to speak to OmniOS?  That's a lot of indirection...

Question:  What's the MTU on the 10Gig Link?

Dan