[ANNOUNCE] multipath-tools-0.1.6

[ANNOUNCE] multipath-tools-0.1.6

[christophe varoqui]

Hello,

here goes multipath-tools-0.1.6

Changelog for this release :

* add the dmadm WIP tool (read MD superblocks and create
  corresponding devmaps when possible)
* plug fd leak in TUR path checker (multipathd)

Please note dmadm should not be run anywhere near a production machine with useful data on MD raids.
That said comments and contributions are welcome.

Downloads and docs at http://christophe.varoqui.free.fr

regards,
cvaroqui



-------------------------------------------------------
This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek
For a limited time only, get FREE Ground shipping on all orders of $35
or more. Hurry up and shop folks, this offer expires April 30th!
http://www.thinkgeek.com/freeshipping/?cpg\x12297
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: [dm-devel] [ANNOUNCE] multipath-tools-0.1.6

[thornber]

On Sun, Apr 25, 2004 at 11:54:59PM +0200, christophe varoqui wrote:
> * add the dmadm WIP tool (read MD superblocks and create
>   corresponding devmaps when possible)

:)

- Joe


-------------------------------------------------------
This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek
For a limited time only, get FREE Ground shipping on all orders of $35
or more. Hurry up and shop folks, this offer expires April 30th!
http://www.thinkgeek.com/freeshipping/?cpg\x12297
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: [dm-devel] [ANNOUNCE] multipath-tools-0.1.6

[christophe.varoqui]

Selon thornber@redhat.com:

> On Sun, Apr 25, 2004 at 11:54:59PM +0200, christophe varoqui wrote:
> > * add the dmadm WIP tool (read MD superblocks and create
> >   corresponding devmaps when possible)
> 
> :)
> 
Any insight on where to put the log of the mirror target when mapping over a
MD-created raid1 ?


-------------------------------------------------------
This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek
For a limited time only, get FREE Ground shipping on all orders of $35
or more. Hurry up and shop folks, this offer expires April 30th!
http://www.thinkgeek.com/freeshipping/?cpg\x12297
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: [dm-devel] [ANNOUNCE] multipath-tools-0.1.6

[thornber]

On Tue, Apr 27, 2004 at 11:57:58AM +0200, christophe.varoqui@free.fr wrote:
> Selon thornber@redhat.com:
> 
> > On Sun, Apr 25, 2004 at 11:54:59PM +0200, christophe varoqui wrote:
> > > * add the dmadm WIP tool (read MD superblocks and create
> > >   corresponding devmaps when possible)
> > 
> > :)
> > 
> Any insight on where to put the log of the mirror target when mapping over a
> MD-created raid1 ?

MD effectively uses a log with a single region in it.  So we only need
3 sectors (2 for the header 1 for the bitset) for the log, is there
any space in the MD metadata where this could be placed ?

- Joe


-------------------------------------------------------
This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek
For a limited time only, get FREE Ground shipping on all orders of $35
or more. Hurry up and shop folks, this offer expires April 30th!
http://www.thinkgeek.com/freeshipping/?cpg\x12297
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: [dm-devel] [ANNOUNCE] multipath-tools-0.1.6

[christophe.varoqui]

Selon thornber@redhat.com:

> > Any insight on where to put the log of the mirror target when mapping over
> a
> > MD-created raid1 ?
> 
> MD effectively uses a log with a single region in it.  So we only need
> 3 sectors (2 for the header 1 for the bitset) for the log, is there
> any space in the MD metadata where this could be placed ?
> 
Nope : the sb is 4096 bytes long, and is full of holes. The biggest one is 128
bytes long, at the tail. We could lower the maximum number of device in a raid
from 27 to 21 to free 3 sectors, but it won't be appreciated and would leave us
with the most fundamental problem : logging in the MD superblock would corrupt
the checksum ... :(


-------------------------------------------------------
This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek
For a limited time only, get FREE Ground shipping on all orders of $35
or more. Hurry up and shop folks, this offer expires April 30th!
http://www.thinkgeek.com/freeshipping/?cpg\x12297
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel