Backup NFS Server

[Overwan]

Hi to all,

I'm a newbie in Promox. I'm testing some features before apply this kind of OS in clients.

In my lab I have two Proxmox Servers as nodes. On Server1 I got all my VM's and I will use Server2 as Backup Server.


On Server2 I already configure as NFS Server (https://www.linode.com/docs/networking/basic-nfs-configuration-on-debian-7)

So when I configure backup it appears the shared folder and I configure to backup shared folder. But when I run the backup it appears

Jan 12 13:15:01 server1 CRON[2822]: (root) CMD (vzdump 107 --mode snapshot --compress gzip --storage server2-backups --quiet 1 --mailnotification always)
Jan 12 13:15:02 server1 CRON[2821]: pam_unix(cron:session): session closed for user root


I have checked the shared folder and it appears as Active=NO.


Can help me?

 

[fireon]

What say's

cat /etc/exports

On the backupserver? Have you add your NFSshare as storage correctly? Did you have writeaccess on CMD on your PVEhost with the VM's?

 

[Overwan]

On Exports I got that info

/var/nfsroot server2ipaddress/32(rw,root_squash,subtree_check)

What do mean with "Did you have writeaccess on CMD on your PVEhost with the VM's?"

Many thinks

 

[fireon]

Set it to:
(async,acl,no_subtree_check,no_root_squash,rw)

With writeaccess i mean: Log in with SSH on your PVE host that this NFSshare has mounted. Create one file at the mountpoint to see that you have writeaccess.

 

[Overwan]

I have accessed to shared folder on Server1 and create a folder and It appears. But when I access to NFS Server the folder doesnt appears.

I have checked that info on shared folder "Permission denied at /usr/share/perl5/PVE/Storage/Plugin.pm line 842. (500)"


Finally I got some message on server1.

"mount error: mount.nfs: access denied by server while mounting server2ipaddress:/var/nfsroot"

Basically it could be a question of permissions. How can I give full permission Server1 to access shared folder?

Many thinks

 

[FinnTux]

On Exports I got that info

/var/nfsroot server2ipaddress/32(rw,root_squash,subtree_check)

Here you allow only server2 to access nfs share. You have to include server1 too. And as mentoined no_root_squash is also needed.

 

[boopzz]

What distro is your NFS server on? I had a problem on CentOS where SElinux was blocking, I had to restore the SElinux context to be able to share the directory

 

[Overwan]

It works ! Great !

Basically on the exports file is necessary to add all allowed hosts. My NFS Server is Proxmox.

Many thinks to all.