ADSM-L

Re: [ADSM-L] Method to count tapes in I/O slots of IBM3584 library

2008-07-28 09:51:08
Subject: Re: [ADSM-L] Method to count tapes in I/O slots of IBM3584 library
From: "Bell, Charles (Chip)" <Chip.Bell AT BHSALA DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 28 Jul 2008 08:49:28 -0500
Another way is to activate the 3584 GUI, and give them the link. That's how I
enabled our operators to look at various things, such as how many slots are
empty in the library, for those days when we get back from offsite more tapes
than we have slots for. Ask your IBM tech. You can do all sorts of things
with, such as update microcode/firmware, look at logs, run inventory, send
emails, etc., etc. 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Steven Harris
Sent: Saturday, July 26, 2008 7:39 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Method to count tapes in I/O slots of IBM3584 library

John,

If I'm reading it correctly, the SML-MIB_112.mib file describes
structures in the library that can be walked with SNMP.
physicalMediaTable might be the one to look at, I have no access to a
library just at present so I can't test.

Alternatively, define another control path and use it just to run your
tapeutil commands.

HTH

Steve

Steven Harris
TSM Admin
Sydney Australia.

Schneider, John wrote:
> Greetings,
>     We have an IBM3584 library.  We needed a script which would
> determine how many tapes were in the I/O doors of the library, and then
> send an email to the Operators to empty the  I/O doors when the library
> was mostly full.  We fill the I/O door several times a day in the course
> of daily processing, so we need to notify the Operators regularly.  The
> way that seemed the best to do this was a script which issued:
>
> tapeutil -f /dev/smc1 inventory -i > /tmp/tapeinventory.out
>
> The output file is easy to parse, and count how many slots contain
> media, and spit out the email accordingly.  We run the script every 30
> minutes.  But now that we have been running the script a couple weeks,
> several times we have gotten TSM errors like this:
>
>
> 07/25/08 05:35:00     ANR8965W  The server is unable to automatically
> determine
>                        the serial number for the device.  (SESSION:
> 21742)
> 07/25/08 05:35:00     ANR8840E Unable to open device /dev/smc1 with file
> handle
>                        11. (SESSION: 21742)
>
> 07/25/08 05:35:00     ANR8848W Drive LTO4_F1_D08 of library SUN2079 is
>
>                        inaccessible; server has begun polling drive.
> (SESSION:
>                        21742)
>
> 07/25/08 05:35:00     ANR1794W TSM SAN discovery is disabled by options.
>
>                        (SESSION: 21742)
>
> 07/25/08 05:35:00     ANR8965W  The server is unable to automatically
> determine
>                        the serial number for the device.  (SESSION:
> 21742)
> 07/25/08 05:35:00     ANR8840E Unable to open device /dev/smc1 with file
> handle
>                        11. (SESSION: 21742)
>
> 07/25/08 05:35:00     ANR8848W Drive LTO4_F1_D06 of library SUN2079 is
>
>                        inaccessible; server has begun polling drive.
> (SESSION:
>                        21742)
>
> 07/25/08 05:35:00     ANR1794W TSM SAN discovery is disabled by options.
>
>                        (SESSION: 21742)
>
> 07/25/08 05:35:00     ANR8965W  The server is unable to automatically
> determine
>                        the serial number for the device.  (SESSION:
> 21742)
> 07/25/08 05:35:00     ANR8840E Unable to open device /dev/smc1 with file
> handle
>                        11. (SESSION: 21742)
>
> 07/25/08 05:35:00     ANR8848W Drive LTO4_F1_D10 of library SUN2079 is
>
>                        inaccessible; server has begun polling drive.
> (SESSION:
>                        21742)
>
> 07/25/08 05:35:00     ANR1794W TSM SAN discovery is disabled by options.
>
>                        (SESSION: 21742)
>
>
> >From the timestamp we know it is exactly when our script which issues
> the tapeutil command is running.  Apparently there are times when
> issuing tapeutil interferes with TSM issuing commands through the
> /dev/smc1 device to the library.  Perhaps tapeutil makes the device busy
> for just a second?  I think that is the reason, because when I was
> writing the script sometimes it would get a "device busy" error from
> tapeutil, so my script had to be sensitive to that error, wait a few
> seconds, and try again.
>
> Does anybody know of a way around this?   Anybody else done something
> similar.  Is there a way via IP to get this information from the library
> that won't interfere with /dev/smc1?
>
> Best Regards,
>
> John D. Schneider
> Lead Systems Administrator - Storage
> Sisters of Mercy Health Systems
> Email:  John.Schneider AT Mercy DOT net
>
>
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