SL150 - Unable To Unlock The Magazine Nor Open The Mail Slot

Asset ID:	1-72-1942513.1
Update Date:	2017-05-19
Keywords:

Solution Type Problem Resolution Sure

Solution 1942513.1 : SL150 - Unable To Unlock The Magazine Nor Open The Mail Slot

Applies to:

StorageTek SL150 Modular Tape Library - Version All Versions and later
Information in this document applies to any platform.

Unable to open the mailslot with SCSI Prevented "Yes"
Here is mailslot properties:
Mailslot Configuration: Expanded Mailslot (19 slots)
State: Closed
SCSI Prevented: Yes
Mailslot Positions - Occupied: 4
Empty: 15
Total: 19
Model Number: SL150

Here is the current installed firmware version:
Firmware Version: 2.25
Firmware Build Number: 0225 (1.45.00)

Symptoms

Unable to unlock the magazine nor open the mail slot, option "grayed out" from library console.

Cause

Incorrect settings.

Solution

This issue is most likely coming from the Software Application.

Following information comes from "StorageTek SL150 Modular Tape Library System Interface Reference Manual". (Pg-148)

Prevent/Allow Medium Removal:
The Prevent/Allow Medium Removal command (1Eh) requests that the library enable or disable operator access to the mailslot and magazine(s).
• If allowed, the mailslot and magazine(s) are unlocked. The mailslot may be opened and the magazine(s) may be unlatched from the user interface.
• If prevented, the mailslot and magazine (s) are locked. The mailslot cannot be opened and the magazine(s) cannot be unlatched from the user interface.
This command is independent of device reservations if the Prevent bit is 0.
The library keeps Prevent/Allow data on a per-initiator basis.
• If any initiator has set a prevent state, the library prevents anyone from opening the mailslot or unlatching the magazine(s).
During power-on and following a reset, all initiators are set to an allow state, which enables user interface access to the mailslot and magazine(s).

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