In make menuconfig, it's
Multi-device support (RAID and LVM) --->
Multiple devices driver support (RAID and LVM)
Multipath I/O support
Under drivers/md there's a multipath.c. Usage can be found in
/usr/share/doc/raidtools/multipath.conf.sample.
There's no method to automatically re-enable a failed path (concious decision)
but it's trivial to do from usermode by using raidhotremove and raidhotadd.
-----Original Message-----
From: Austin Gonyou [mailto:austin@xxxxxxxxxxxxxxx]
Sent: Friday, June 01, 2001 2:29
To: Christian, Chip
Cc: 'Steve Lord'; Coumoul, Philippe; 'linux-xfs@xxxxxxxxxxx'
Subject: RE: Path failover with xfs on linux
Whoa, it does have that? Well shut my mouth. :) What's the driver named?
--
Austin Gonyou
Systems Architect, CCNA
Coremetrics, Inc.
Phone: 512-796-9023
email: austin@xxxxxxxxxxxxxxx
On Thu, 31 May 2001, Christian, Chip wrote:
> RedHat 7.1 has a multipath block driver that has worked well in our testing.
> We put XFS on top.
>
> -----Original Message-----
> From: Steve Lord [mailto:lord@xxxxxxx]
> Sent: Thursday, May 31, 2001 13:19
> To: Coumoul, Philippe
> Cc: 'linux-xfs@xxxxxxxxxxx'
> Subject: Re: Path failover with xfs on linux
>
>
> > Hi,
> >
> > I m looking for a path failover software solution to secure acces from Red
> > Hat 7.x server to an external Raid Storage Subsystem.
> > I ve seen that there is not XLV on XFS for Linux, but is there a failover
> > possibility without XLV ?
> >
> > Thanks
> >
> > Phil
>
> This question might be better directed at the linux kernel list, hardware
> failover is usually invisible to the filesystem, being handled at the
> block layer. SGI does have ports of some of the Irix SCSI code which
> includes failover capability for certain device types, but I cannot
> say when or how this would be available.
>
> Steve
>
|