Re: [PATCH] Associate HBA and storage in rdac_controller to support partitions in storage

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Oops. Sorry. By mistake sent an earlier version. Will send the correct
version.
On Wed, 2011-07-27 at 14:34 +0400, James Bottomley wrote:
> On Wed, 2011-07-20 at 14:22 -0700, Chandra Seetharaman wrote:
> > rdac hardware handler assumes that there is one-to-one relation ship
> > between the host and the controller w.r.t lun.  IOW, it does not
> > support "multiple storage partitions" within a storage.
> > 
> > Example:
> > HBA1 and HBA2 see lun 0 and 1 in storage A (1)
> > HBA3 and HBA4 see lun 0 and 1 in storage A (2)
> > HBA5 and HBA6 see lun 0 and 1 in storage A (3)
> > 
> > luns 0 and 1 in (1), (2) and (3) are totally different.
> > 
> > But, rdac handler treats the lun 0s (and lun 1s) as the same when 
> > sending a mode select to the controller, which is wrong.
> > 
> > This patch makes the rdac hardware handler associate HBA and the
> > storage w.r.t lun (and not the host itself).
> > 
> > Signed-off-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
> > ---
> >  drivers/scsi/device_handler/scsi_dh_rdac.c |   10 +++++++---
> >  1 files changed, 7 insertions(+), 3 deletions(-)
> 
> This doesn't apply;
> 
> patching file drivers/scsi/device_handler/scsi_dh_rdac.c
> Hunk #1 succeeded at 158 (offset 9 lines).
> Hunk #2 FAILED at 381.
> Hunk #3 FAILED at 389.
> Hunk #4 FAILED at 403.
> Hunk #5 FAILED at 526.
> 4 out of 5 hunks FAILED -- saving rejects to file
> drivers/scsi/device_handler/scsi_dh_rdac.c.rej
> 
> 
> it looks like there's a missing intermediate patch somewhere, can you
> check scsi-misc and tell me what it is?
> 
> Thanks,
> 
> James
> 
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel


[Index of Archives]     [DM Crypt]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Packaging]     [Fedora SELinux]     [Yosemite Discussion]     [KDE Users]     [Fedora Docs]

  Powered by Linux