'On your z/OS you might also have the latest command additions to display
stuff like the SFPs and light intensity on fibres which you might find
useful'

Interesting any idea from zOS level I can use the commands on zOS ?

On Wed, 1 May, 2019, 9:34 AM Alan(GMAIL)Watthey, <[email protected]>
wrote:

> Peter,
>
> Well, if an interface goes down that z/OS has in its IODF then you'll
> probably get loads of messages out about it on the z/OS consoles.  However,
> if another interface goes down (say an ISL or a backend tape) then you
> won't.
>
> I specify that SYSLOG from my SAN Directors is sent to a server (there it
> is logged, emails sent, incidents generated, whatever) and then I can see
> everything that is going on.  We have Brocade so I also enable MAPS and get
> transient information about CRC, latency, etc issues logged which z/OS
> never sees.
>
> If you've got the FMS option (CUP) and generate that in the IODF and vary
> it online then there is information sent to z/OS on that link as well (eg.
> RMF).
>
> I know there's a problem before anyone else does.  Resolving it is another
> issue of course.
>
> How do you check from the Director?  I use the switchshow and porterrshow
> commands on my Brocades but there are loads of others.  See the manuals for
> your particular Director.  There's also the web interface.  Limited, but it
> might show what you need.
>
> On your z/OS you might also have the latest command additions to display
> stuff like the SFPs and light intensity on fibres which you might find
> useful.  I prefer to use the Directors.
>
> Regards,
> Alan Watthey
>
> -----Original Message-----
> From: Peter <[email protected]>
> Sent: 30 April 2019 1:53 pm
> Subject: Validate SAN switch
>
> Hi
>
> This is just a general question
>
> If any one of the switch is in error or down. How do we validate or check
> from the Mainframe (zOS) that a particular ficon is not working ? Is it
> just displaying the ficon device alone will be enough ?
> Then how do we check from SAN switch login ?
>
> Any advise would be helpful.
>
> Peter
>
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