FreeNAS asynchronous writes with xcp-ng

#1

Hi Tom,

I am seeing that in your video you are using FreeNAS iSCSI as strorage for your Xcp-ng servers.
On the FreeNAS, how do you handle the asynchronous writes generated by the hypervisor?
Do you have a dedicated ssd disk for SLOG or simply set sync=always in FreeNAS?

Thank you

#2

It matters more with NFS, but you can turn that off in FreeNAS on per dataset. Also I moved over to NFS shares with my new server.

#3

Interesting, can you share why? the Video you did iSCSI vs NFS pointed to iSCSI been better

#4

Just for testing on our new server. The speed difference is quite marginal.

#5

So which would you recommend in production?

#6

iSCSI can be a bit more processor intensive, but both are fine, which ever one you prefer.