Subject: Re: Which snapshot strategy to use? was: How to capture all file system writes
To: None <tls@rek.tjls.com>
From: Jason Thorpe <thorpej@wasabisystems.com>
List: tech-kern
Date: 10/23/2003 11:40:31
On Thursday, October 23, 2003, at 09:29  AM, Thor Lancelot Simon wrote:

> On Thu, Oct 23, 2003 at 08:33:28AM -0700, Jason Thorpe wrote:
>>
>> On Thursday, October 23, 2003, at 05:47  AM, Christian Limpach wrote:
>>
>> Your examples aren't using a file system mounted on /dev/sd1a.  
>> They're
>> using a file system mounted on /dev/mapper/vgdelight-test.  In other
>
> So what?  If I want snapshotting, in this scheme, I must always mount
> the filesystem through the block mapper -- that does not seem at all
> unreasonable to me.

Ok, fine, BUT WE DON'T YET HAVE THE BLOCK MAPPER.  And we don't yet 
have wedges.  And I don't think it's reasonable to wait for those 
things in order to get file system snapshots.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>