Re: about shared disk file system

2011-12-29 Thread Andrew Cathrow


- Original Message -
 From: Ayal Baron aba...@redhat.com
 To: Andrew Cathrow acath...@redhat.com
 Cc: vdsm-devel@lists.fedorahosted.org, wangxiaofan wangxiao...@opzoon.com
 Sent: Thursday, December 29, 2011 8:40:49 AM
 Subject: Re: about shared disk file system
 
 
 
 - Original Message -
  
  
  - Original Message -
   From: wangxiaofan wangxiao...@opzoon.com
   To: vdsm-devel@lists.fedorahosted.org
   Sent: Thursday, December 29, 2011 8:21:43 AM
   Subject: about shared disk file system
   
   Hi there,
   To support SAN storage in vdsm, is there any plan to use
   shared
   disk file system, such as Red Hat GFS or OCFS2,
   instead of lvm?
  
  One of the features we're adding to oVirt is the ability to have
  plug-able file domains. Today we support block based (iscsi/fiber)
  and NFS. We'll add support for generic filesystems [1].
  
  For some filesystems this will be pretty straight forward eg
  Gluster,
  GPFS but GFS adds some extra complications - it brings along it's
  own cluster stack that provides membership management, fencing etc.
 
 so do gpfs and gluster.
 as long as you don't mix LVM based domains with GFS you should be
 fine.

GFS/Clustersuite will power off nodes, GPFS and Gluster won't.


 
  
  
  [1]
  https://fedorahosted.org/pipermail/vdsm-devel/2011-December/000408.html
  
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Re: about shared disk file system

2011-12-29 Thread Ayal Baron


- Original Message -
 
 
 - Original Message -
  From: Ayal Baron aba...@redhat.com
  To: Andrew Cathrow acath...@redhat.com
  Cc: vdsm-devel@lists.fedorahosted.org, wangxiaofan
  wangxiao...@opzoon.com
  Sent: Thursday, December 29, 2011 8:40:49 AM
  Subject: Re: about shared disk file system
  
  
  
  - Original Message -
   
   
   - Original Message -
From: wangxiaofan wangxiao...@opzoon.com
To: vdsm-devel@lists.fedorahosted.org
Sent: Thursday, December 29, 2011 8:21:43 AM
Subject: about shared disk file system

Hi there,
To support SAN storage in vdsm, is there any plan to use
shared
disk file system, such as Red Hat GFS or OCFS2,
instead of lvm?
   
   One of the features we're adding to oVirt is the ability to have
   plug-able file domains. Today we support block based
   (iscsi/fiber)
   and NFS. We'll add support for generic filesystems [1].
   
   For some filesystems this will be pretty straight forward eg
   Gluster,
   GPFS but GFS adds some extra complications - it brings along it's
   own cluster stack that provides membership management, fencing
   etc.
  
  so do gpfs and gluster.
  as long as you don't mix LVM based domains with GFS you should be
  fine.
 
 GFS/Clustersuite will power off nodes, GPFS and Gluster won't.

not if you define usage of SCSI fencing instead of power fencing.

 
 
  
   
   
   [1]
   https://fedorahosted.org/pipermail/vdsm-devel/2011-December/000408.html
   
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Re: about shared disk file system

2011-12-29 Thread Andrew Cathrow


- Original Message -
 From: wangxiaofan wangxiao...@opzoon.com
 To: vdsm-devel@lists.fedorahosted.org
 Sent: Thursday, December 29, 2011 8:21:43 AM
 Subject: about shared disk file system
 
 Hi there,
 To support SAN storage in vdsm, is there any plan to use shared
 disk file system, such as Red Hat GFS or OCFS2,
 instead of lvm?

One of the features we're adding to oVirt is the ability to have plug-able file 
domains. Today we support block based (iscsi/fiber) and NFS. We'll add support 
for generic filesystems [1]. 

For some filesystems this will be pretty straight forward eg Gluster, GPFS but 
GFS adds some extra complications - it brings along it's own cluster stack that 
provides membership management, fencing etc. 


[1] https://fedorahosted.org/pipermail/vdsm-devel/2011-December/000408.html

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Re: about shared disk file system

2011-12-29 Thread Itamar Heim

On 12/29/2011 04:24 PM, Ayal Baron wrote:



- Original Message -



- Original Message -

From: Ayal Baronaba...@redhat.com
To: Andrew Cathrowacath...@redhat.com
Cc: vdsm-devel@lists.fedorahosted.org, wangxiaofan
wangxiao...@opzoon.com
Sent: Thursday, December 29, 2011 8:40:49 AM
Subject: Re: about shared disk file system



- Original Message -



- Original Message -

From: wangxiaofanwangxiao...@opzoon.com
To: vdsm-devel@lists.fedorahosted.org
Sent: Thursday, December 29, 2011 8:21:43 AM
Subject: about shared disk file system

Hi there,
 To support SAN storage in vdsm, is there any plan to use
 shared
disk file system, such as Red Hat GFS or OCFS2,
instead of lvm?


One of the features we're adding to oVirt is the ability to have
plug-able file domains. Today we support block based
(iscsi/fiber)
and NFS. We'll add support for generic filesystems [1].

For some filesystems this will be pretty straight forward eg
Gluster,
GPFS but GFS adds some extra complications - it brings along it's
own cluster stack that provides membership management, fencing
etc.


so do gpfs and gluster.
as long as you don't mix LVM based domains with GFS you should be
fine.


GFS/Clustersuite will power off nodes, GPFS and Gluster won't.


not if you define usage of SCSI fencing instead of power fencing.


or the storage servers will not be the same nodes running the VMs?
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about shared disk file system

2011-12-29 Thread wangxiaofan
Hi there,
To support SAN storage in vdsm, is there any plan to use shared
disk file system, such as Red Hat GFS or OCFS2,
instead of lvm?
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