When attempting to remove a failed disk with the "luxadm remove_device," you get an error like:

Please verify the above list of devices and

then enter 'c' or <CR> to Continue or 'q' to Quit. [Default: c]:

stopping: Drive in "c" rear slot 6.... SCSI Error - Sense Byte:(0x2) Check condition

Error: Retry failed. - c,r6.

The device paths are not removed by the "luxadm remove_device" command when this occurs; therefore, the "luxadm insert_device" for the replacement disk will fail.

CAUSE:

The "luxadm remove_device" command handshakes with the drive to be removed. If the disk does not handshake, the command will fail.

To correct this, the following edits and device path removals that "luxadm remove_device" does behind the scenes must be done proactively. In our example below, the failed drive is c20t86d0s2:

STEP 1

Determine the world wide number of the disks.

# cd /dev/dsk

# ls -l c20t86d0s2

lrwxrwxrwx 1 root root 61 Jul 24 14:15 c20t86d0s2 ->

../../devices/pci@6,4000/SUNW,ifp@2/ssd@w2200002037c2ce13,0:c

The unique WWN digits we will use are "2037c2ce13".

STEP 2

Determine if the drive is multi-pathed and what the paths are.

# cd /dev/dsk

# ls -l *s2 | grep 2037c2ce13

lrwxrwxrwx 1 root root 61 Jul 24 14:15 c20t86d0s2 ->

../../devices/pci@6,4000/SUNW,ifp@2/ssd@w2200002037c2ce13,0:c

lrwxrwxrwx 1 root root 61 Jul 24 14:15 c23t86d0s2 ->

../../devices/pci@6,2000/SUNW,ifp@1/ssd@w2100002037c2ce13,0:c

The disk is multi-pathed; therefore we will have to clear both paths.

STEP 3

Remove the physical paths for c20t86d0s2 and c23t86d0s2.

# cd /devices/pci@6,4000/SUNW,ifp@2

# rm -i *2037c2ce13*

rm: remove ssd@w2200002037c2ce13,0:a (yes/no)? y

Confirm each of the rm commands to remove the physical path for this controller. Next, remove the second physical path.

# cd /devices/pci@6,2000/SUNW,ifp@1

# rm -i *100002037c2ce13*

rm: remove ssd@w2100002037c2ce13,0:a (yes/no)? y

Confirm each of the rm commands to remove the physical path for this controller.

STEP 4

Remove the logical paths. Confirm each of the rm commands to remove the logical paths for the controllers.

# cd /dev/dsk

# rm -i c20t86d0*

rm: remove c20t86d0s0 (yes/no)? y

# rm -i c23t86d0*

rm: remove c23t86d0s0 (yes/no)? y

# cd ../rdsk

# rm -i c20t86d0*

rm: remove c20t86d0s0 (yes/no)? y

# rm -i c23t86d0*

rm: remove c23t86d0s0 (yes/no)? y

STEP 5

Edit the /etc/path_to_inst file.

# cd /etc

# cp path_to_inst path_to_inst-073101 (example, use current date)

# vi path_to_inst

Remove the lines (two of them) containing the WWN "2037c2ce13" saved earlier.

STEP 6

Physically remove the faulty disk.

STEP 7

Install the replacement disk.

STEP 8

Create the device paths.

# luxadm insert c,r6

Notice: c,r6 may already be present.

The drive is now available for use.