IBM System Storage TS3500, Введение и руководство по планированию

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For V6R1 and Power 6 hardware using the IOP-less (Smart IOA), the adapter
has two Fibre Channel ports and supports multiple devices per port. At least
one control path is required per IOA and per set of drives within a library
partition.
v
For V7R1 and Power 6 or Power 7 hardware using the IOP-less (Smart IOA), the
adapter has two Fibre Channel ports and supports multiple devices per port. At
least one control path is required per IOA port and per set of drives within a
library partition.
Using multiple control paths for control path failover
The TS3500 Tape Library offers an optional control path failover feature that
enables the host device driver to resend the command to an alternate control path
for the same logical library.
Advanced Library Management System
This section explains the Advanced Library Management System (ALMS), which
virtualizes the locations of cartridges in the TS3500 Tape Library.
ALMS is an extension of IBM's patented Multi-Path Architecture. With ALMS, the
TS3500 Tape Library is the industry's first standards-based tape library to virtualize
the locations of cartridges (called SCSI element addresses) while maintaining native
SAN attachment for the tape drives. ALMS enables logical libraries to consist of
unique drives and ranges of volume serial (VOLSER) numbers, instead of fixed
locations.
When you enable ALMS with its license key, you can assign tape drives to any
logical library by using the Tape Library Specialist Web interface. Logical libraries
can also be added, deleted, or easily changed without disruption. Storage capacity
can be changed without impact to host applications.
ALMS offers dynamic management of cartridges, cartridge storage slots, tape
drives, and logical libraries. It enables the TS3500 Tape Library to achieve
unprecedented levels of integration for functionality through dynamic partitioning,
storage slot pooling, and flexible drive assignment. ALMS eliminates downtime
when you add Capacity On Demand (CoD) or High Density Capacity on Demand
(HD CoD) storage, add or remove logical libraries, or change logical library storage
allocation. ALMS also reduces downtime when you add expansion frames, add or
remove tape drives, or change logical drive allocation.
The capabilities of ALMS include:
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Dynamic partitioning (storage slot pooling and flexible drive assignment)
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The transparent ability to add or remove storage capacity to any host application
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The ability to configure drives or to configure Model L22, L23, L32, L52, or L53
storage capacity without taking the library offline
v Virtual I/O slots to automatically manage the movement of cartridges between
I/O slots and storage slots
If you purchase an entry-capacity or intermediate-capacity library, you can
purchase the new Entry ALMS or Intermediate ALMS at a price lower than the
Full ALMS. For more information, contact your IBM marketing representative.
The sections that follow describe the capabilities of ALMS.
Chapter 1. Introduction
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