Solved NFS async exports

[salleman]

Hi,

I just installed FreeBSD 10.1 with ZFS and NFS service. I'm looking to configure the NFS service with asynchronous exports. I searched on Google how to do that but found anything. Could you help me please?


Regards

 

[SirDice]

It's a client side setting, see mount(8):

             async   All I/O to the file system should be done asynchronously.
                     This is a dangerous flag to set, since it does not guar-
                     antee that the file system structure on the disk will
                     remain consistent.  For this reason, the async flag
                     should be used sparingly, and only when some data recov-
                     ery mechanism is present.

 

[salleman]

Thanks for your answer but I use a Linux client and I have the same performance with mount -o async or mount -o sync.

I tried zfsOnLinux and ZFS on Solaris which have the option "async" to put in exports. Are you sure that in FreeBSD, there is no option for the NFS server?

 

[kpa]

The async option is not actually an NFS filesystem level option in FreeBSD but a general mount(8) option so it's implemented on a different level alltogether.

 

[salleman]

Ok, thanks for your help.