HP XP20000/XP24000 HP StorageWorks XP Disk Array Mainframe Host Attachment and - Page 25

Logical host connection specifications, XP disk array, G5/G6, z9, z10, Native FICON, FICON Express

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Table 8 FICON host and RAID physical connection specifications XP disk array Host z900 z990 z9, z10 G5/G6 Native FICON FICON Express FICON Express FICON Express2 FICON Express4 Native FICON Link Bandwidth 1 / 2 / 4 Gbps (Auto-negotiation) 1 Gbps 1 / 2 Gbps 4 Gbps 1 Gbps Connector LC-Duplex SC-Duplex LC-Duplex LC-Duplex SC-Duplex Cable Single Mode Multi Mode Single Mode Multi Mode Single Mode Multi Mode Single Mode Multi Mode Single Mode 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 specification). 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 Mainframe Host Attachment and Operations Guide 25

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Table 8 FICON host and RAID physical connection specifications
Host
XP disk array
G5/G6
z9, z10
z990
z900
Native FICON
FICON Express
FICON Express2
FICON Express4
FICON Express
Native FICON
1 Gbps
4 Gbps
1 / 2 Gbps
1 Gbps
1 / 2 / 4 Gbps
(Auto-negotiation)
Link
Bandwidth
SC-Duplex
LC-Duplex
LC-Duplex
SC-Duplex
LC-Duplex
Connector
Single Mode
Multi Mode
Single Mode
Multi Mode
Single Mode
Multi Mode
Single Mode
Multi Mode
Single Mode
Multi Mode
Cable
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 Mainframe Host Attachment and Operations Guide
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