HP StorageWorks XP Disk Array Mainframe Host Attachment and Operations Guide XP24000, XP20000 (A5951 - 96151, September 2007)

card. When configured with shortwave Fibre Channel adapters, the storage system can be located
up to 500 meters (2750 feet) from the open-system host(s). When configured with longwave Fibre
Channel adapters, the storage system can be located up to 10 kilometers from the open-system
host(s).
• iSCSI: The storage system supports a maximum of 112 iSCSI interfaces. The iSCSI channel interface
boards provide data transfer speeds of up to 100 MB/sec. The storage system supports shortwave
(multimode) iSCSI channel adapters and can be located up to 500 meters (2750 feet) from the
host(s). In an iSCSI environment, the storage system provides user authentication between hosts
and ports mutually by using CHAP (challenge handshake authentication protocol).
Table 2 Channel Adapter Specifications
SpecificationsParameter
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14Number of channel adapter pairs
FICON: 8Simultaneous data transfers per CHA pair:
ExSA: 8
Fibre Channel: 8, 16
iSCSI: 8
FICON: 400 MB/sec (4 Gbps)Maximum data transfer rate:
ExSA: 17 MB/sec
Fibre Channel: 400 MB/sec (4 Gbps)
iSCSI: 100 MB/sec (1 Gbps)
FICON: 8Physical interfaces per CHA pair:
ExSA: 8
Fibre Channel: 16
iSCSI (Gigabit Ethernet): 8
FICON: 8, 16, 24, 32, 40, 48, 56, 64, 62, 80,88, 96,104,
112
Maximum physical interfaces per storage
system:
ExSA: 8, 16, 24, 32, 40, 48, 56, 64, 62, 80,88, 96,104,
112
Fibre Channel: 16, 32, 48,64, 80,96,112 128, 144,160,
176,192
iSCSI: 8, 16, 24, 32, 40, 48
65,536 (1024 host paths × 64 CUs) (2105 emulation)Logical paths per FICON port
261,120(1024 host paths x 255 CUs) (2107 emulation)
512 (32 host paths × 16 CUs) *Logical paths per ExSA (ESCON) port
1,044,480 FICON (2048 CHLs × 510 CUs)Maximum logical paths per storage system
32,768 ExSA (2048 CHLs × 16 CUs)
1024Maximum LUs per Fibre Channel port
130,560 (256 LDEVs x 510 CUs)Maximum LDEVs per storage system
FICON and ESCON Host Attachment20