Each volume inside an SMS-managed tape library is assigned a two-byte
Library Manager category number based on the 'use attribute' of the
volume and the media type. The IBM® Tape
Library Manager category numbers are used by the operating system
to group tape volumes together for specific purposes. Currently, DFSMS uses the following fixed set of category
numbers:
- X'0001'
- All 3490 standard capacity(CST) scratch cartridges.
- X'0002'
- All 3490 enhanced capacity(ECST) scratch cartridges.
- X'0003'
- All 3590 high performance scratch cartridges.
- X'0004'
- All 3590 high performance scratch cartridges.
- X'0005'
- 3592 Enterprise Tape Cartridge scratch cartridges.
- X'0006'
- 3592 Enterprise WORM Tape Cartridge scratch cartridges.
- X'0007'
- 3592 Enterprise Economy Tape Cartridge scratch cartridges.
- X'0008'
- 3592 Enterprise Economy WORM Tape Cartridge scratch cartridges.
- X'0009'
- 3592 Enterprise Extended Tape Cartridge scratch cartridges.
- X'000A'
- 3592 Enterprise Extended WORM Tape Cartridge scratch cartridges.
X'000B'
- 3592 Enterprise Advanced Tape Cartridge scratch cartridges.
- X'000C'
- 3592 Enterprise Advanced WORM Tape Cartridge scratch cartridges.
- X'000D'
- 3592 Enterprise Advanced Economy Tape Cartridge scratch cartridges.
- X'000E'
- The ERROR category. Used for tape volumes for which the system has detected an error. Tape volumes are added to this category to prevent them from being mounted in response to a 'scratch' tape mount.
- X'000F'
- The PRIVATE category.
Library partitioning is the ability to partition volumes in an IBM tape library between different z/OS® systems (or sysplexes). Partitioning allows each system (or sysplex) to limit its view of library volumes to only those volumes that it owns. Partitioning is accomplished when each system connected to a library uses unique category codes. DEVSUPxx parameters are used to specify category codes that replace the default system codes.
The following DEVSUPxx parameters are used to specify category
codes for library partitioning:
- MEDIA1=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3490 standard capacity (CST) scratch category code.
- MEDIA2=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3490 enhanced capacity (ECST) scratch category code.
- MEDIA3=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3590 high performance cartridge tape scratch category code.
- MEDIA4=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3590 high performance cartridge tape scratch category code.
- MEDIA5=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Tape Cartridge scratch category code.
- MEDIA6=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise WORM Tape Cartridge scratch category code.
- MEDIA7=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Economy Tape Cartridge scratch category code.
- MEDIA8=xxxx
- xxxxsspecifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Economy WORM Tape Cartridge scratch category code.
- MEDIA9=xxxx
- xxxx pecifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Extended Tape Cartridge scratch category code.
- MEDIA10=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Extended WORM Tape Cartridge scratch category code.
- MEDIA11=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Advanced Tape Cartridge scratch category code.
- MEDIA12=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Advanced WORM Tape Cartridge scratch category code.
- MEDIA13=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the 3592 Enterprise Advanced Economy Tape Cartridge scratch category code.
- ERROR=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the error category code.
- PRIVATE=xxxx
- xxxx specifies a 2-byte hexadecimal value to be used as the private
category code. Note: xxxx must be a 4-character hexadecimal value within the range 0000-FEFF.