[sheepdog-users] support for share storage

[Andrew J. Hobbs]

Useful for high availability clustering.  To the original poster, I've commented in the past when locking was first proposed that being able to disable locking explicitly would be useful.  GFS2 and OCFS are not file systems, but meta file systems that sit on top of a block file system.  Sheep provides the block file system, GFS2/OCFS handles locking and meta data.  You'd have to ensure you aren't using object caching and use write-through, but should work.

On 12/01/2014 06:02 AM, Valerio Pachera wrote:


2014-12-01 11:22 GMT+01:00 <yang.bin18 at zte.com.cn<mailto:yang.bin18 at zte.com.cn>>:
Hi,can  mutiple sheepdog  nodes  access the same share storage the same time? Just like OCFS or GFS2.

It sounds weird to me.
What's the purpose of that?

Sheepdod needs a filesystem with acl supported/enabled.

Or do you mean if two guests can access the same vdi?
In such case the short answer is no.
The long one is:
0.9.x has a locking system, so you absolutely can't.
0.8.3 and previous don't have the locking mechanism, so you can access the same vdi from different nodes but you are going to corrupt it if you write data from both guests.




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