RE: Sg_ses question

[Haefliger, Juerg]

 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of Douglas Gilbert
 Sent: Tuesday, May 22, 2007 1:29 PM
 To: Haefliger, Juerg
 Cc: linux-scsi@vger.kernel.org
 Subject: Re: Sg_ses question
 
 Haefliger, Juerg wrote:
  Hi,
  
  Not sure if this is the right list for my question but I 
 couldn't find 
  a more suitable place to ask it.
  
  I'm trying to set the locator light of a disk in a SAS 
 enclosure using 
  sg_ses but I'm not getting anywhere. I'm dumping the 
 enclosure status 
  diagnostic page using 'sg_ses --page=2 --raw /dev/sgXX  page' and 
  then set the SELECT and RQST IDENT bits of the array device 
 element in 
  question and write it back doing 'sg_ses --control --page=2 
 --data=- 
  /dev/sgXX  tmp'. The command completes without error but 
  unfortunately, nothing happens. When I read the page back, 
 the IDENT 
  bit is still cleared and the light on the enclosure remains 
 turned off.
  
  Am I doing something wrong or am I missing something? Can't I use 
  sg_ses to achieve this?
 
 The procedure looks correct. I haven't had any (other) 
 reports of sg_ses not working lately. The only suggestion I 
 can make is to ask if you have selected the element control 
 rather than the overall control.

Hmm... Just tried it again and now it works. I don't think I did
something different than before...

Thanks
...juerg

 
 Doug Gilbert
 
 
 
 
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Re: Sg_ses question

[Douglas Gilbert]

Haefliger, Juerg wrote:
 Hi,
 
 Not sure if this is the right list for my question but I couldn't find a
 more suitable place to ask it.
 
 I'm trying to set the locator light of a disk in a SAS enclosure using
 sg_ses but I'm not getting anywhere. I'm dumping the enclosure status
 diagnostic page using 'sg_ses --page=2 --raw /dev/sgXX  page' and then
 set the SELECT and RQST IDENT bits of the array device element in
 question and write it back doing 'sg_ses --control --page=2 --data=-
 /dev/sgXX  tmp'. The command completes without error but unfortunately,
 nothing happens. When I read the page back, the IDENT bit is still
 cleared and the light on the enclosure remains turned off.
 
 Am I doing something wrong or am I missing something? Can't I use sg_ses
 to achieve this?

The procedure looks correct. I haven't had any (other)
reports of sg_ses not working lately. The only suggestion
I can make is to ask if you have selected the element
control rather than the overall control.

Doug Gilbert




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