[libvirt] [RFC 5/5]: Rewrite findLuns function
Stefan de Konink
skinkie at xs4all.nl
Thu Jun 12 14:38:41 UTC 2008
Stefan de Konink schreef:
> Chris Lalancette schreef:
>> Stefan de Konink wrote:
>>>>> Who told you/anyone who wrote this code before that the 0th lun
>>>>> cannot be a real entry? This assumption is wrong.
>>>> Well, that particular piece of code isn't looking at the 0'th LUN,
>>>> but there is
>>>> code below that that is. However, the code here is generally
>>>> looking for block
>>>> devices, and the 0'th LUN is definitely not a block device. Given
>>>> that, I'm not
>>>> sure what else you would want to do with 0th LUN; can you give me
>>>> some examples?
>>> The 0th LUN can be a perfect block device.
>>
>> OK, cool, I misunderstood. Given that, can you give me the output of:
>>
>> # ls -l /sys/bus/scsi/devices/3:0:0:0
>>
>> Just to make sure I get the right thing?
skinkie at xen01 ~ $ ls -l
/sys/devices/platform/host3/session3/target3:0:0/3:0:0:0
total 0
lrwxrwxrwx 1 root root 0 May 24 16:38 block:sdar ->
../../../../../../block/sdar
--w------- 1 root root 4096 Jun 12 16:34 delete
-r--r--r-- 1 root root 4096 Jun 12 16:34 device_blocked
lrwxrwxrwx 1 root root 0 May 24 16:38 driver ->
../../../../../../bus/scsi/drivers/sd
lrwxrwxrwx 1 root root 0 Jun 12 16:34 generic ->
../../../../../../class/scsi_generic/sg44
-r--r--r-- 1 root root 4096 Jun 12 16:34 iocounterbits
-r--r--r-- 1 root root 4096 Jun 12 16:34 iodone_cnt
-r--r--r-- 1 root root 4096 Jun 12 16:34 ioerr_cnt
-r--r--r-- 1 root root 4096 Jun 12 16:34 iorequest_cnt
-r--r--r-- 1 root root 4096 May 24 16:38 model
-rw-r--r-- 1 root root 4096 Jun 12 16:34 queue_depth
-r--r--r-- 1 root root 4096 Jun 12 16:34 queue_type
--w------- 1 root root 4096 Jun 12 16:34 rescan
-r--r--r-- 1 root root 4096 Jun 12 16:34 rev
-r--r--r-- 1 root root 4096 Jun 12 16:34 scsi_level
-rw-r--r-- 1 root root 4096 May 26 11:28 state
lrwxrwxrwx 1 root root 0 May 24 16:38 subsystem ->
../../../../../../bus/scsi
-rw-r--r-- 1 root root 4096 Jun 12 16:34 timeout
-r--r--r-- 1 root root 4096 May 24 16:38 type
--w------- 1 root root 4096 Jun 12 16:34 uevent
-r--r--r-- 1 root root 4096 May 24 16:38 vendor
-l was important ;)
Stefan
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