How to setup shared NFS storage

[mschau]

Hi!

I want to setup a NFS shared storage for my 4 hosts.
I got two IP's for my two NFS shares for redundancy.

For that I already consulted the Wiki and the Administration Guide - but I can't find out how to correctly configure that for my scenario.

Any help gladly appreciated!

 

[Klaus Steinberger]

what do you mean with two IP's for nfs share? Is it a NFS Storage with high availability? Usually there is one virtual IP for the HA Service

 

[mschau]

Is there a way to manage the two NFS shares via proxmox in order to get HA?

 

[Klaus Steinberger]

is that really two NFS Shares? or two IP's for same share?

 

[mschau]

Sorry - my fault. Its two IPs for the same share!

 

[Klaus Steinberger]

that's very unusual, do you know the vendor of the NFS share server?

Usually for HA is the following:

2 head with own IP
1 virtual IP which fails over between the Heads

So you usually use the virtual IP

 

[mschau]

Ok! Thanks for your input!
I have to configure NFS 4.1 in order to provide for all hosts access to the share, I presume?

 

[Klaus Steinberger]

Not necessarily NFS V3 as well as V4.x should work

 

[mschau]

Thanks Klaus - got it working for one IP.

Is there a way to setup NFS multipathing?

 

[Klaus Steinberger]

Not as I know, just the way I described a virtual IP which is failing over on the NFS Heads

 

[mschau]

I tried to adapt "storage.cfg" analogue to following link: http://packetpushers.net/multipathing-nfs4-1-kvm/

cat /etc/pve/storage.conf:

...
...

nfs: NFS
        export /V_KVM_0000
        path /mnt/pve/NFS
        server 10.1.66.11
        content images,backup,iso
        maxfiles 3
        options vers=4,minorversion=1,nolock

nfs: NFS
        export /V_KVM_0000
        path /mnt/pve/NFS
        server 10.1.66.12
        content images,backup,iso
        maxfiles 3
        options vers=4,minorversion=1,nolock

But had no luck with it - several errors when starting existing VMs and when creating new VMs (i.e. TASK ERROR: create failed - error with cfs lock 'storage-NFS': mkdir /mnt/pve/NFS/images/102: Permission denied at /usr/share/perl5/PVE/Storage/Plugin.pm line 567)

I tried also "options vers=4.1" (and no other options)