[Bug 52260] Kernel does not detect all luns.

[Jesper Krogh]

Public bug reported:

Binary package hint: linux-amd64-server

Using an Adaptec SCSI controller on a external raid disk, that supplies
2 luns on same SCSI-id, Ubuntu does not automatically detect the second
lun.

Running the command:

echo "scsi add-single-device 1 0 0 1" > /proc/scsi/scsi

brings the device back up.

This seems to be related to the aic7xxx scsi-driver since the qlogic
ql2300 driver works in a similar setup.

According to this: 
http://publib.boulder.ibm.com/infocenter/dsichelp/ds8000ic/index.jsp?topic=/com.ibm.storage.ssic.help.doc/f2c_linuxlunconfig_2hsaga.html
putting "max_luns=128" in modules.conf should help, but that doesnt change the situation for ubuntu.

** Affects: linux-meta (Ubuntu)
     Importance: Untriaged
         Status: Unconfirmed

-- 
Kernel does not detect all luns. 
https://launchpad.net/bugs/52260