ses enclosure stuff not working with Promise Vtrak J610S JBOD

[John Hughes <john@Calva.COM>]

Like Lars Täuber last year I have a Promise Vtrak J610S "just a bunch of 
disks" cabinet, and like him I find that the ses enclosure services 
don't seem to be working right.

If I look in the /sys/class/enclosure hierarchy I don't see the links I 
should for the devices:

# lsscsi | grep PROMISE
[3:0:14:0]   enclosu PROMISE  3U-SAS-16-D BP   0107  -         /dev/sg17
[4:0:14:0]   enclosu PROMISE  3U-SAS-16-D BP   0107  -         /dev/sg32


(Note that's one device with two connections)

# ls -R /sys/class/enclosure/4\:0\:14\:0/
/sys/class/enclosure/4:0:14:0/:
0  10  12  14  2  4  6	8  components  power	  uevent
1  11  13  15  3  5  7	9  device      subsystem

/sys/class/enclosure/4:0:14:0/0:
active	fault  locate  power  status  type  uevent

/sys/class/enclosure/4:0:14:0/0/power:
wakeup

/sys/class/enclosure/4:0:14:0/1:
active	fault  locate  power  status  type  uevent
[...]

No sign of any "device" links in the "bay" directories.

Also the "fault" and "locate" files seem to do nothing, writing to them 
doesn't make any lights flash.

If I try looking from the device side:

# ls /sys/block/sdaa/device
block:sdaa	evt_media_change  modalias     rev		     subsystem
bsg:4:0:11:0	generic		  model        scsi_device:4:0:11:0  timeout
bus		iocounterbits	  power        scsi_disk:4:0:11:0    type
delete		iodone_cnt	  queue_depth  scsi_generic:sg29     uevent
device_blocked	ioerr_cnt	  queue_type   scsi_level	     vendor
driver		iorequest_cnt	  rescan       state

No sign of an enclosure.

I've tried with a Debian  2.6.26-2-xen-amd64 kernel, and a 2.6.31 I 
build myself.

Any clues about what I should to to diagnose this problem?

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