RE: udev naming for scsi disk partitions

["Surekha.PC" <surekhap@cisco.com>]

Please find my comments interspersed below with "=>" mark.


> In sysfs the scsi device path looks as shown below.
> 
> The sysfs's "block" device path lists the block devices detected on 
> the system. Here "sdc" is the iSCSI device and "sdc1" and "sdc2" are 
> listed as 2 partitions on the iSCSI disk.
> 
> The device field below is pointing to the iSCSI host/bus/tgt/lun path.
> 
> #ls -l /sys/block/sdc
> total 0
> -r--r--r--    1 root     root         4096 Nov  7 08:25 dev
> lrwxrwxrwx    1 root     root           35 Nov  7 08:25 device ->
> ../../devices/legacy/host6/6:0:69:0

Hm, yeah that rule should have worked.  Mind enabling debugging in
namedev.c by uncommenting the line: //#define DEBUG_PARSER
at the top of the file?  If you rebuild udev, and then send me the
syslog debug messages when you plug the device in, I'd really apreciate
it.

=> I have enabled the debug as mentioned above. Could you pls tell me
where the messages are logged, "/var/log/messages" file doesn't have any
?

> I think the sysfs file "/sys/block/sdc/sdc1" should be ideal to use 
> for setting the LABEL rule as you have mentioned.

Hm, if it's always sdc1, why not just use a simple REPLACE rule?
Something like the following rules should work for you:

REPLACE, KERNEL="sdc1", NAME="c6b0t69l01"
REPLACE, KERNEL="sdc2", NAME="c6b0t69l02"

Will that work?

=> But it need not be sdc1 always, a disk can have any number of
partitions, then the config file will need to be changed always :(

Thanks,
surekha



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