Hi, Mark.
See:

# ls -l /sys/devices/dcssblk/PERFOUT/block
total 0
drwxr-xr-x 6 root root 0 Dec 28 14:31 dcssblk0

# ls -l /sys/devices/dcssblk/PERFOUT/block/dcssblk0/
total 0
-r--r--r-- 1 root root 4096 Dec 28 15:34 alignment_offset
lrwxrwxrwx 1 root root    0 Dec 28 15:34 bdi ->
../../../../virtual/bdi/252:0
-r--r--r-- 1 root root 4096 Dec 28 15:34 capability
-r--r--r-- 1 root root 4096 Dec 28 14:31 dev
lrwxrwxrwx 1 root root    0 Dec 28 14:31 device -> ../../../PERFOUT
-r--r--r-- 1 root root 4096 Dec 28 15:34 ext_range
drwxr-xr-x 2 root root    0 Dec 28 15:34 holders
-r--r--r-- 1 root root 4096 Dec 28 15:34 inflight
drwxr-xr-x 2 root root    0 Dec 28 15:34 power
drwxr-xr-x 2 root root    0 Dec 28 15:34 queue
-rw-r--r-- 1 root root 4096 Dec 28 14:31 range
-r--r--r-- 1 root root 4096 Dec 28 14:31 removable
-r--r--r-- 1 root root 4096 Dec 28 15:34 ro
-r--r--r-- 1 root root 4096 Dec 28 15:34 size
drwxr-xr-x 2 root root    0 Dec 28 14:31 slaves
-r--r--r-- 1 root root 4096 Dec 28 15:34 stat
lrwxrwxrwx 1 root root    0 Dec 28 14:31 subsystem ->
../../../../../class/block
-rw-r--r-- 1 root root 4096 Dec 28 15:34 uevent

______________________________________________
Clovis



From:
Mark Post <[email protected]>
To:
[email protected]
Date:
28/12/2010 16:56
Subject:
Re: Finding the lost symlink in SLES11.1
Sent by:
Linux on 390 Port <[email protected]>



>>> On 12/28/2010 at 01:49 PM, Clovis Pereira <[email protected]> wrote:
> Hello, friends.
> There are one symlink in SLES10 used to find the PERFOUT dcss, that is
> missing in SLES11 SP1.
> See on SLES10:
>
> # ls -l /sys/devices/dcssblk/PERFOUT/
> total 0
> lrwxrwxrwx 1 clovis root    0 Dec 28 16:18 block:dcssblk0 ->
> ../../../block/dcssblk0
> -rw-r--r-- 1 clovis root 4096 Dec 28 16:18 save
> -rw-r--r-- 1 clovis root 4096 Dec 28 16:18 shared
> --w------- 1 clovis root 4096 Dec 28 16:18 uevent
>
> On SLES11 SP1, the reply didn't match:
>
>  # ls -l /sys/devices/dcssblk/PERFOUT/
> total 0
> drwxr-xr-x 3 root root    0 Dec 28 14:31 block
> drwxr-xr-x 2 root root    0 Dec 28 20:19 power
> -rw------- 1 root root 4096 Dec 28 20:19 save
> -r-------- 1 root root 4096 Dec 28 20:19 seglist
> -rw------- 1 root root 4096 Dec 28 20:19 shared
> -rw-r--r-- 1 root root 4096 Dec 28 20:19 uevent
>
> The SYMLINK (block:dcssblk0) is missing. I think this wasn't created by
> udev,

Or, there's more information in the (apparently new)
/sys/devices/dcssblk/PERFOUT/block sub-directory.  What's in there?


Mark Post

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