HP XP20000/XP24000 HP StorageWorks XP Disk Array Mainframe Host Attachment and - Page 55

Four channel ESCON system with two FICON channels added

Get HP XP20000/XP24000 PDF manuals and user guides View all HP XP20000/XP24000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 55 highlights

Figure 18 Four channel ESCON system with two FICON channels added . This figure shows four ESCON adapters and two ESCON directors. The illustration also shows the channel path group and FICON directors through which the two FICON adapters are installed in the storage unit. The two FICON directors are not required. You can improve reliability by eliminating a single point of failure. The single point of failure might be present if both FICON channels are connected to a single FICON director. You can connect the FICON channels to the storage unit FICON adapters directly, without directors. This configuration gives you the most flexibility for future I/O changes. Because the channel path group has ESCON and FICON channel paths, it makes migrating easier. This intermixing of types of channel-paths enables you to non-disruptively add FICON channels to the host and to add FICON adapters to the storage unit. NOTE: • This configuration is supported for migration only. • Do not use this configuration for an extended period. • Migrate from a mixed channel-path group configuration to an all FICON channel-path group configuration. XP Disk Array Mainframe Host Attachment and Operations Guide 55

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
Figure 18 Four channel ESCON system with two FICON channels added
.
This figure shows four ESCON adapters and two ESCON directors. The illustration also shows the
channel path group and FICON directors through which the two FICON adapters are installed in the
storage unit. The two FICON directors are not required.
You can improve reliability by eliminating a single point of failure. The single point of failure might
be present if both FICON channels are connected to a single FICON director. You can connect the
FICON channels to the storage unit FICON adapters directly, without directors.
This configuration gives you the most flexibility for future I/O changes. Because the channel path
group has ESCON and FICON channel paths, it makes migrating easier. This intermixing of types
of channel-paths enables you to non-disruptively add FICON channels to the host and to add FICON
adapters to the storage unit.
NOTE:
•
This configuration is supported for migration only.
•
Do not use this configuration for an extended period.
•
Migrate from a mixed channel-path group configuration to an all FICON channel-path group
configuration.
XP Disk Array Mainframe Host Attachment and Operations Guide
55