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ADD 768238 - Volume Manager work for XFS on Linux

To: n8992@xxxxxxx
Subject: ADD 768238 - Volume Manager work for XFS on Linux
From: pv@xxxxxxxxxxxxx (nathans@xxxxxxxxxxxx)
Date: Mon, 11 Sep 2000 20:59:28 -0700 (PDT)
Cc: slinx-xfs@xxxxxxxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxx
Reply-to: sgi.bugs.xfs@xxxxxxxxxxxxxxxxx
Sender: owner-linux-xfs@xxxxxxxxxxx
Webexec: webpvupdate,pvincident
Webpv: wobbly.melbourne.sgi.com
View Incident: 
http://co-op.engr.sgi.com/BugWorks/code/bwxquery.cgi?search=Search&wlong=1&view_type=Bug&wi=768238

 Status : open                         Priority : 1                         
 Assigned Engineer : n8992             Submitter : mostek                   
*Modified User : nathans              *Modified User Domain : engr          
*Description :
The interactions between XFS and volume managers on Linux need to
        be investigated, designed, and implemented.
        This includes enhancing slinx-xfs/cmd/xfs/sim/src/libdisk.c to
        also deal with volume managers.

        i. Install LVM on a machine and integrate with XFS.
        ii. Install/configure md on a machine and integrate with XFS.
        iii. port xlv_get_subvolumes() to a more generic routine and
        implement to handle multiple Linux volume managers.
        iv. libdisk needs to:

.....


==========================
ADDITIONAL INFORMATION (ADD)
From: nathans@engr (BugWorks)
Date: Sep 11 2000 08:59:28PM
==========================


Been asked on status of lvm and xfs user tools (mkfs) - here's the
last I heard on this from Martin ... I believe this is the current
status.  Putting it here for posterity...


On Jul 25, 11:38am, Martin K. Petersen wrote:
> Subject: Re: LVM vs. kiobuf I/O
> 
> >> - mkfs support for querying LVM stripe size/width
> ...
> Nathan> Also, from what you say above, I take it mkfs is now going to
> Nathan> be linked with liblvm?
> 
>       ... Although liblvm is a part of the
> LVM package, it isn't designed to be a generic library.  I've been
> doing all kinds of surgery to the include files etc., and I'm still
> unable to build binaries linked to liblvm outside the LVM tree.
> 
> Right now I'm more concerned about getting the LVM kiobuf support
> running.
> 

On Aug 1,  3:47pm, Martin K. Petersen wrote:
> Subject: Re: LVM vs. kiobuf I/O
> ...
> [liblvm]
> 
> Nathan> Does it go through the ioctl interface?  perhaps you could
> Nathan> make the calls directly & bypass the library altogether?
> 
> I can do it via ioctls, yes, but I'd end up reinventing a lot of the
> existing liblvm code.
> 
> I'll consider it once the kiobuf support for LVM is complete.
>

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