On Wed 14 Dec 2011 02:29:53 AM EST, Dan Kenigsberg wrote:
On Tue, Dec 13, 2011 at 02:57:33PM -0500, Saggi Mizrahi wrote:
On Sun 11 Dec 2011 10:15:23 AM EST, Andrew Cathrow wrote:
----- Original Message -----
From: "Saggi Mizrahi"<smizr...@redhat.com>
To: "VDSM Project Development"<vdsm-devel@lists.fedorahosted.org>,
engine-de...@ovirt.org
Sent: Friday, December 9, 2011 5:41:42 PM
Subject: [Engine-devel] shared fs support
Hi, I have preliminary (WIP) patches for shared FS up on gerrit.
There is a lot of work to be done reorganizing the patches but I
just wanted all the TLV guys to have a chance to look at it on
Sunday.
I did some testing and should work as expected for most cases.
To test just connectStorageServer with storageType=6 (sharedfs)
connection params are
{'id'=1,
'spec'='server:/export'
'vfs_type'='nfs\gluster\smb'
'mnt_options'='opt,opt=3,opt' }
to check with an existing NFS domain you can just
spec=server:/export
vfs_type=nfs
mnt_options=soft,timeo=600,retrans=6,nosharecache,vers=3
So does that mean that we treat nfs custom types differently -eg using the out
or process stuff?
I only tested NFS but I am going to test more exotic stuff on Monday.
This is the patch to build the RPM from.
http://gerrit.ovirt.org/#change,560
Have a good weekend
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Using the custom NFS will give you the tested supported options and
limits. Using sharedfs will give you a generic implementation.
Currently the underlying implementation is the same. But there is a
plan to use a simpler implementation (without using OOP as it's an NFS
specific hack) and also loose stale handle checks and other NFS
specific stuff.
Without a proof to the contraty, I would suspect that other shared file
system would have the tendency to disappear, leaving client application
in D state. We may need the oop hack for them, too.
They are unsupported, if we find a solution for the NFS issue then I
want to tear all the oop code down, not leave it because other random
NAS suffers from the same problems
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