• Assign the drive
• Remove the drive assignment
• Reassign the drive
When a cartridge is mounted in a shared drive, the library only accepts a demount 
command that is requested by the source logical library. Any demount command that is 
requested by another logical library is rejected. 
Parent topic: Dynamic partitioning
Related concepts
Using multiple logical libraries
Web interface
Transparent addition or removal of storage capacity
This section describes the transparent addition or removal of logical library capacity in the 
TS3500 Tape Library.
With the Advanced Library Management System (ALMS) enabled in the TS3500 Tape 
Library, you can change the total logical library capacity (quantity of accessible storage 
slots). The change is transparent to each host application because the value in the Maximum 
Number of Cartridges field in the Tape Library Specialist Web interface is not impacted by 
changes to the quantity of storage slots. The additional storage slots are simply 
Configuration of storage capacity without disruption
This topic lists the capacity expansion features that can be enabled without requiring 
downtime.
With the Advanced Library Management System (ALMS), no downtime is required when you 
enable Intermediate Capacity On Demand or Full Capacity On Demand for Models L22, L23, 
L52, and L53 or High Density Capacity on Demand for Models S24 and S54 of the TS3500 
Tape Library.
Parent topic: Advanced Library Management System
Related concepts
Intermediate, Full, and Capacity On Demand features for Models L22, L23, L52, and L53
Using virtual I/O slots
This section describes the benefits of using virtual input/output (I/O) slots.
When the Advanced Library Management System (ALMS) is enabled, you can enable virtual 
I/O slots in the TS3500 Tape Library so that the library automatically queues all cartridge 
moves between the I/O station and the storage slots. This makes the process of adding and 
removing cartridges easier and faster.