Logical Host Connection Specifications; Logical Host Connection (Example 1 - Escon); Ficon Host And Raid Physical Connection Specifications - HP XP20000/XP24000 Operation Manual

Table 8 FICON host and RAID physical connection specifications
1 / 2 / 4 Gbps
Link
Bandwidth
(Auto-negotiation)
Connector LC-Duplex
Single Mode
Cable
Multi Mode

Logical host connection specifications

Figures Figure 15 shows an example of two logical host connections. Both examples support EMIF.
With ESCON, the number of Device Addressing per channel port is limited to 1024. With FICON/
zHPF, the number increases to 16,384.
In Figure 15:
Up to 1,024 unit addresses are supported for each CHL port (limit of the ESCON CHL port spe-
cification). When the number of devices per CHL image is limited to a maximum of 1,024, 16
CU images can be assigned per CHL image. If one CU has 256 devices, the maximum number
of CUs per CHL image is limited to 4.
Up to 16,384 DEVs (all address ranges of the storage system) from one system are supported for
each CHL port. This requires that system generation is divided every 1,024 DEVs (4 CUs).
Figure 15 Logical host connection (example 1 - ESCON)
.
XP disk array
z900
Native FICON
1 Gbps
SC-Duplex
Single Mode
Multi Mode
XP Disk Array Mainframe Host Attachment and Operations Guide
Host
z990 z9, z10
FICON Express FICON Express
FICON Express2
FICON Express4
1 / 2 Gbps 4 Gbps
LC-Duplex LC-Duplex
Single Mode Single Mode
Multi Mode Multi Mode
G5/G6
Native FICON
1 Gbps
SC-Duplex
Single Mode
Multi Mode
25