Hi Mark,

I don't agree.  There are 2 steps in this discovery process.  For the 
first step for target ports, it is exactly as I described early.  The tool 
only uses what is available in /sys.  There is no interaction with the 
nameserver unless the device is being brought online.

For the second step for LUNs, the tool does make a good effort.  It sends 
report luns to a couple of well-know LUNs.

I liked the older san_disc that shipped with the earlier distros.  It was 
tedious to use, but it always queried the SAN.

Regards,

Ray Higgs
System z IO Firmware Development
Bld. 706, B42
2455 South Road
Poughkeepsie, NY 12601
(845) 435-8666,  T/L 295-8666
[email protected]

Linux on 390 Port <[email protected]> wrote on 01/25/2016 06:53:50 
PM:

> From: Mark Post <[email protected]>
> To: [email protected]
> Date: 01/25/2016 06:56 PM
> Subject: Re: New LUNs on SLES 11 SP4
> Sent by: Linux on 390 Port <[email protected]>
> 
> >>> On 1/25/2016 at 06:47 PM, Raymond Higgs <[email protected]> wrote: 

> > Zfcp_san_disc, and many other tools typically only display what Linux 
> > already knows about.
> 
> The zfcp_san_disc command is somewhat different in that regard.  It 
> interacts with the SAN to try and tease out things it didn't know 
> about previously.
> 
> 
> Mark Post
> 
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