Solaris - Adding Hard Disks to Older SPARC systems

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Adding Hard Disks to Older SPARC systems
Topic: Solaris Posted:2003-12-20
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On some older SPARC systems, like ours, if you add disks to the system, it won't automatically detect the drives. For instance, we have added drives via a StorEdge external drive box. If we look at the output of dmesg:

# dmesg | grep sd
Dec 20 08:01:33 srv-50 scsi: [ID 193665 kern.info] sd0 at fas0: target 0 lun 0
Dec 20 08:01:33 srv-50 genunix: [ID 936769 kern.info] sd0 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@0,0
Dec 20 08:01:33 srv-50 scsi: [ID 193665 kern.info] sd1 at fas0: target 1 lun 0
Dec 20 08:01:33 srv-50 genunix: [ID 936769 kern.info] sd1 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@1,0
Dec 20 08:01:34 srv-50 scsi: [ID 193665 kern.info] sd6 at fas0: target 6 lun 0
Dec 20 08:01:34 srv-50 genunix: [ID 936769 kern.info] sd6 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@6,0
Dec 20 08:01:34 srv-50 scsi: [ID 193665 kern.info] sd8 at fas0: target 9 lun 0
Dec 20 08:01:34 srv-50 genunix: [ID 936769 kern.info] sd8 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@9,0
Dec 20 08:01:34 srv-50 scsi: [ID 193665 kern.info] sd9 at fas0: target a lun 0
Dec 20 08:01:34 srv-50 genunix: [ID 936769 kern.info] sd9 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@a,0
Dec 20 08:01:34 srv-50 scsi: [ID 193665 kern.info] sd10 at fas0: target b lun 0
Dec 20 08:01:34 srv-50 genunix: [ID 936769 kern.info] sd10 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@b,0
Dec 20 08:01:34 srv-50 scsi: [ID 193665 kern.info] sd11 at fas0: target c lun 0
Dec 20 08:01:34 srv-50 genunix: [ID 936769 kern.info] sd11 is 
/sbus@1f,0/SUNW,fas@e,8800000/sd@c,0

The drives are all there. But, when we look for the drives with format:

# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t0d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@0,0
1. c0t1d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@1,0
Specify disk (enter its number):

Hey, those aren't all of my drives!!! The trick is to tell Solaris to redetect the new hardware. To detect the drives:

# touch /reconfigure

reboot:

# reboot

After the reboot, we see our drives:

# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t0d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@0,0
1. c0t1d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@1,0
2. c0t9d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@9,0
3. c0t10d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@a,0
4. c0t11d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@b,0
5. c0t12d0 
/sbus@1f,0/SUNW,fas@e,8800000/sd@c,0
Specify disk (enter its number):

Happiness!

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