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Re: [Xen-users] Shared File System

To: MikeyCarter <mikey@xxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Shared File System
From: Massimo Mongardini <massimo.mongardini@xxxxxxxxx>
Date: Mon, 23 Jun 2008 12:12:28 +0100
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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MikeyCarter wrote:
I have a few cases where I need to share a filesystem (Read/Write) with
multiple DomUs.   Currently I use NFS to accomplish this task.  However, NFS
on Fedora 7 locks up under heavy traffic from time to time, forcing a
reboot.  Wouldn't want that on the Dom0.

Any one recommend a good way of sharing a file system in read/write with
multiple DomUs?

Have you tried tweaking nfs/nfsd? Failing that you could try with samba.

I successfully used both samba and nfs.

I use these nfs mount options:
udp,rsize=32768,wsize=32768,noatime
and exported with (async,rw,root_squash)

async perhaps could help you under heavy load.

for samba I use
cifs,sfu as mount options (I found cifs to perform better than smb although I noticed a bit of cpu overhead)

hope this helps
cheers
Massimo

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