NFS v4.1 & LACP vs iSCSI & multipath

[tbaror]

Hello All,

I am about to build new Xenserver platform based on common storage which will be FreeNAS powered.
The storage spec will be as follows:
Disk: 400 500 TBytes space available,
Memory: 512GB
Network 4x10G nic
Storage will serve around 10~15 Hypervisor xen hosts, each host will have also 4x10G network cards.
My question regarding connectivity Host to Storage planing , according to experience and recent versions of both Xenserver and FreeNAS, is it better to go with NFS v4.1 using pNFS and LACP or iSCSI with Multipath, in terms throughput redundancy wise?

Please advise

Thanks

 

[Mlovelace]

FreeNAS supports NFS v4 not v4.1 so your plans for parallel access NFS aren't going to work out.

 

[tbaror]

FreeNAS supports NFS v4 not v4.1 so your plans for parallel access NFS aren't going to work out.

:-( , is there any plan to implement it in the near future ?
Thanks

 

[Mlovelace]

:-( , is there any plan to implement it in the near future ?
Thanks

Looks like pNFS was in alpha testing for freeBSD back in April 2016, so I wouldn't expect it to show up any time soon. Best to develop a storage network plan that does not include pNFS with freeNAS.

 

[dlavigne]

I'm pretty sure it already supports v4.1. Here is an example of an applied patch from 3 months ago: https://bugs.freenas.org/issues/19418.

 

[tbaror]

I'm pretty sure it already supports v4.1. Here is an example of an applied patch from 3 months ago: https://bugs.freenas.org/issues/19418.

Well that's a good news , tried to look also is there any official announce of this implemented ?
Thanks

 

[dlavigne]

I dug a bit deeper and got this reply: It's not in upstream FreeBSD yet but we could bring patches in as developer resources allow.

 

[Mlovelace]

I dug a bit deeper and got this reply: It's not in upstream FreeBSD yet but we could bring patches in as developer resources allow.

Looks like pNFS was in alpha testing for freeBSD back in April 2016, so I wouldn't expect it to show up any time soon. Best to develop a storage network plan that does not include pNFS with freeNAS. ;)

There was a thread awhile back about it not being supported in 10.3 so it won't show up in FN till it's in upstream freeBSD.