Hitachi Universal Storage Platform V Reference Manual page 34

Table 2-1
Number of front-end director features
Simultaneous data transfers per FED pair:
FICON
ExSA (ESCON)
Fibre-channel
Maximum data transfer rate:
FICON
ExSA (ESCON)
Fibre-channel
Physical interfaces per FED pair:
FICON
ExSA (ESCON)
Fibre-channel
Max. physical FICON interfaces per system
Max. physical ExSA interfaces per system
Max. physical FC interfaces per system
Logical paths per FICON port
Logical paths per ExSA (ESCON) port
Maximum FICON logical paths per system
Maximum ExSA logical paths per system
Maximum logical paths per CU
Maximum LUs per fibre-channel port
Maximum LDEVs per storage system
*Note: When the number of devices per CHL image is limited to a maximum of 1024, 16 CU images
can be assigned per CHL image. If one CU includes 256 devices, the maximum number of CUs per CHL
image is limited to 4.
2-8
Hitachi Universal Storage Platform V/VM User and Reference Guide
Front-End Director and Channel Specifications
Parameter
Architecture and Components
Specifications
USP V: 1 – 8, 14 when FEDs are installed in BED slots
USP VM: 1 – 3
8
8
8, 16
400 MB/sec (4 Gbps)
17 MB/sec
400 MB/sec (4 Gbps)
8
8
8, 16
USP V: 112
USP VM: 24
USP V: 112
USP VM: 24
USP V: 224
USP VM: 48
2105 emulation: 65,536 (1024 host paths × 64 CUs)
2107 emulation: 261,120 (1024 host paths x 255 CUs)
512 (32 host paths × 16 CUs) *
2105 emulation: 131,072
2107 emulation: 522,240
8,192
2,048
2,048
65,280 (256 LDEVs x 255 CUs)