NFS - Async option

[kevin39]

Hi,
First, this firmware is beautiful... I'm rediscovering my Lacie NS. Thanks a lot for you work !

I'm using NFS shares with mac computers.
Due to very poor write performance I had to add the "async" option on the server and manually stop/start from the command line. Using the async option highlighy improve my performance (from 0.1mb/s to 10/20 mb/s).

Is it possible to add this option in the GUI ? Because my option will be overridden by your default "sync" option each time I edit my NFS shares...

[Jocko]

Hi kevin39,

I understand it and we will add an option in the nfs menu. Rather than adding only this option , I will add the ability to edit the default used options

[kevin39]

Hi,
Thanks a lot, it will be very useful !

Best regards

[drixon]

Hi,

I have the same problem with the NFS performance (I'm using it with Vmware ESXi).

I want to try this trick of the async option but I don't know how to restart manually the nfs service from command line.

Could you help me please?

from the web, it overwrite the option to sync again :-(

[kevin39]

There are 2 scripts in /etc to stop & start the NFS Server. Just call the script you want.

To stop NFS Server : /etc/stop-nfs-server
To start NFS Server : /etc/start-nfs-server

Beware that any NFS update on the GUI will override your async option. Jocko sent me an addon to set my own settings, you can ask him if you want it too.

[drixon]

Many thanks Kevin39,

Here is what I've done:
I changed a line on the file ‘exports’ from :

(rw,sync,no_root_squash,no_subtree_check)
to
(rw,async,no_root_squash,no_subtree_check)

and then I did as you mentioned above :
/etc/stop-nfs-server
/etc/start-nfs-server

the start command gave me an error :
rpc.nfsd: Setting version failed: errno 22 (Invalid argument)

so I tried this (with -d) :
# /usr/sbin/rpc.nfsd -d
rpc.nfsd: Checking netconfig for visible protocols.
rpc.nfsd: Enabling inet udp.
rpc.nfsd: Enabling inet tcp.
rpc.nfsd: Enabling inet6 udp.
rpc.nfsd: Enabling inet6 tcp.
rpc.nfsd: knfsd is currently up

with the ‘sync’ option I got 2.5Mb/s and with the ‘async’ I can see a 4.5Mb/s which is too little unfortunately
Because with the usual samba (CIFS) I can see more than 10Mb/s.

I did the test by activating NFS services on Windows 7 ultimate (it's on a VM) and transferring a file of 500M to the NAS.

btw, I have a LaCie Cloudbox (white) 4To

Do you think I can get a better speed with any other options?

and is there any risk using the 'async' option in Vmware ESXi environment (I use the NFS as datastore)?

Thank you

[Jocko]

Hi drixon,

I sent you a pm to install a patch. With this you can easily change the export options

[drixon]

Well Received, many Thanks