Well,
Let me add some comments:
The SL500 is a modular library that comes in different capacities. The usable
capacity depends on the physical configuration (number and type of modules) as
well as the logical configuration (licensed number of slots (hardware
license), designation of the CAP slots).
Also, the number of the slots that you appear to see in the library, is not
the number of slots that you can use. This is not only limited by the licensed
number of slots, but also limited by the physical design of the library.
Let me quote the manual a bit:
Slot counts are based on the following assumptions:
• Capacity includes reserved slots for diagnostic and cleaning cartridges.
• Reserved slots (for cleaning and diagnostic cartridges) are located only
in the base module on the left side as you open the front door. These slots
can be configured for data cartridges if desired.
• The base module has a 5-slot CAP; the drive expansion module (DEM) and
cartridge expansion module (CEM) each have two 5-slot CAPs. These slots can be
configured for data cartridges if desired.
• When DEMs and CEMs are installed in the same library, the DEMs are above
all of the CEMs.
The lowest module in the rack requires installation of the floor. The floor
limits the distance the robot can travel, which makes the bottom row(s) in the
lowest module inaccessible:
• Base module: -16 slots
• DEM: -7 slots
• CEM (below another CEM): -16 slots (-10 slots on the lowest CEM, -6 slots
on the CEM above it)
• CEM (below base module or DEM): -16 slots
So, if you have for instance a BASE module only (which actually sits on top),
it appears that you've got:
- 7 rows of 9 slots each
- 1 row of 3 slots
- 5 cap slots
But
- The bottom 2 slots of each row (8*2) can only be used when you add a module
below it (physical limitation).
- Your vendor might have given you a discount by reducing the number of slots
to (for instance) 30 instead of the maximum 50 (logical limitation).
I normally recommend to our customer base, to use the CAP for cartridge
insertion, in this way you can make sure that you are not putting cartridges
in inaccessible slots.
If you want to sort out the maximum physical limitation of your current
hardware I would like you to refer to the SL500 user guide, it has a pretty
good write up on this.
Regards
Ysbrand
Ysbrand Bergman
BAR SME
EMEA RTS
Teradata
------ Original Message ------
Received: Wed, 30 Jan 2008 03:51:37 AM CET
From: Len Boyle <Len.Boyle AT sas DOT com>
To: "Wilkinson, Tim" <Tim.Wilkinson AT dsto.defence.gov DOT au>, Curtis
Preston <cpreston AT glasshouse DOT com>, Ed Wilts <ewilts AT ewilts DOT
org>Cc:
"VERITAS-BU AT mailman.eng.auburn DOT edu" <VERITAS-BU AT mailman.eng.auburn
DOT edu>
Subject: Re: [Veritas-bu] tape limit?
> Tim,
>
> As someone else pointed out it sounds like the tape library has a limit on
the number of tapes that you can see.
> You might want to check if the max number of slots was increased in the
library config. I do not know this library but the stk 9710 and L700 had
> to have their configs changed when the number of slots was increased.
> Also are you using the sun/stk acsls software for the library. If so your
problem may be with the config of the software.
>
> len
>
> From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
Wilkinson,
Tim
> Sent: Tuesday, January 29, 2008 7:28 PM
> To: Curtis Preston; Ed Wilts
> Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] tape limit?
>
> Curtis,
>
> After going over the robtest output in detail, it appears that the tapes
(which are now in stand-alone) are not being seen by robtest. This would
suggest a possible issue with the HW, although it's difficult to know exactly
what at this stage. The confusing thing is when I move tapes around (into
different slots, etc) and re-run the inventory, then the tapes it has problems
reading (and then put into stand-alone) seem to be different each time.
>
> I have been able to move a tape from a slot on the original tape library
base unit to a slot on the expansion unit using robtest.
>
> It appears there is a problem reading some of the barcodes but it's not the
same tapes each time and not the same slots. I hate problems like this :)
>
> Cheers,
>
> Tim
>
> ________________________________
> From: Curtis Preston [mailto:cpreston AT glasshouse DOT com]
> Sent: Wednesday, 30 January 2008 11:16 AM
> To: Wilkinson, Tim; Ed Wilts
> Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
> Subject: RE: [Veritas-bu] tape limit?
> Robtest is just a wrapper around tldtest. So if you're using robtest, then
you're using tldtest. I would make sure you can move tapes to/from those
extended slots. If you can, then I'd say it's definitely not a hardware
issue. Robtest/tldtest is a low-level piece of software that talks directly
to the library and has nothing to do with Symantec licensing, etc.
>
> ---
> W. Curtis Preston
> Backup Blog @ www.backupcentral.com<http://www.backupcentral.com>
> VP Data Protection, GlassHouse Technologies
> ________________________________
> From: Wilkinson, Tim [mailto:Tim.Wilkinson AT dsto.defence.gov DOT au]
> Sent: Tuesday, January 29, 2008 3:33 PM
> To: Curtis Preston; Ed Wilts
> Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
> Subject: RE: [Veritas-bu] tape limit?
>
> Curtis,
>
> What's the syntax with tldtest and what does it do? Robtest appears to show
all the slots and contents (or no contents where that is the case) - would
that suggest it's not a HW issue?
>
> When we installed the expansion unit, I put 9 more tapes in to test (we
won't need more than that for a while) and ran an inventory in NBU. It found
new tapes but put some in stand-alone, with 55 tapes in the default volume
group. At the time, I thought it could be a barcode read error or something so
I moved the stand-alone tapes around and did another inventory. It then added
the stand-alone tapes back into the volume group but removed some other tapes
and put them in standa-lone. The number in the volume group never hits more
than 55. The tapes that get moved into stand-alone seem to change every time I
move tapes around and get a new inventory.
>
> Cheers,
>
> Tim
>
> ________________________________
> From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Curtis
Preston
> Sent: Friday, 25 January 2008 4:35 PM
> To: Wilkinson, Tim; Ed Wilts
> Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] tape limit?
> I would use robtest/tldtest and manually talk to the library. That doesn't
have any licenses associated with it. If tldtest reports 55 slots, that's
your proof.
>
> ---
> W. Curtis Preston
> Backup Blog @ www.backupcentral.com<http://www.backupcentral.com>
> VP Data Protection, GlassHouse Technologies
> ________________________________
> From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
Wilkinson,
Tim
> Sent: Thursday, January 24, 2008 9:08 PM
> To: Ed Wilts
> Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] tape limit?
>
> Ed/Steve - If it turns out it's very unlikely to be Netbackup then I'll
begin to query the HW. The tech seems to think all the slots were available
and the library software could see all the tapes and I had no reason to
question him.
>
> ________________________________
> From: Ed Wilts [mailto:ewilts AT ewilts DOT org]
> Sent: Friday, 25 January 2008 4:00 PM
> To: Wilkinson, Tim
> Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] tape limit?
> Do you have the right "license" on the SL500? By default, they appear to
come with a 100-slot license - at least ours did. We had to purchase a
license, and it was *expensive* to make use of the full 144 slots.
>
> If/when you do purchase this license, you'll be shocked at the installation
instructions compared to the price you paid...
>
> I'm not aware of any slot-based licensing in NetBackup. I think it's TSM
that has it which is why the SL500 is cheaper when it's restricted to 100
slots.
>
> .../Ed
> On Jan 24, 2008 10:47 PM, Wilkinson, Tim
<Tim.Wilkinson AT dsto.defence.gov DOT au<mailto:Tim.Wilkinson AT
dsto.defence.gov DOT au>>
wrote:
> Netbackup 6, MP4, Windows.
>
> Is there any sort of tape limit on a standard NBU license?
>
> We have this strange issue where we've just had an expansion unit added to
our SL500s tape library giving us >144 slots available. I'm still
trouble-shooting this issue but I can make the standard volume group to see
more than 55 tapes; any tapes in the library over the 55 mark are moved into
the stand-alone volume group. It doesn't seem to matter which slots I move the
tapes to.
> I'll run the robot inventory and it will give me 55 tapes in the normal
volume group, and the reset it will stick in the stand-alone group, so I'll
then put the stand-alone tapes into the CAP, re-run the inventory (this time
to empty CAP as well) and it will add the tapes from the CAP but then take out
other tapes and put them in the stand-alone group.
> It never makes it above 55 tapes.
>
> Cheers,
>
> ---------------------------------------------------------------------
> Tim Wilkinson
> I.T. Support Officer
> Science Corporate Information Systems
> Defence Science & Technology Organisation
> Department of Defence
>
> Tel: (02) 96921484
> Fax: (02) 96921562
> Email:
tim.wilkinson AT dsto.defence.gov DOT au<mailto:tim.wilkinson AT
dsto.defence.gov DOT au>
>
>
> --
> Ed Wilts, Mounds View, MN, USA
> mailto:ewilts AT ewilts DOT org<mailto:ewilts AT ewilts DOT org>
>
> IMPORTANT: This email remains the property of the Australian Defence
Organisation and is subject to the jurisdiction of section 70 of the CRIMES
ACT 1914. If you have received this email in error, you are requested to
contact the sender and delete the email.
>
>
>
>
>
> _______________________________________________
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