Supported Exp810, Exp710, And Exp100 Enclosure Combinations Per Redundant Drive Channel/Loop Pair In A Ds4800 Storage Subsystem Environment; Possible Combinations Of 14-Drive And 16-Drive Storage Expansion Enclosures Per Drive Loop For Ds4300 Dual Controller Turbo Models Only - IBM DS4000 EXP810 Installation, User's, And Maintenance Manual
Storage expansion enclosure
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environment. Table 26 assumes that a DS4000 storage subsystem is generally
capable of addressing the maximum of 112 fibre channel hard drives for each
redundant drive channel/loop pair.
Table 26. Supported EXP810, EXP710, and EXP100 enclosure combinations per redundant
drive channel/loop pair in a DS4800 Storage Subsystem environment
Number of
EXP710s
Number of
and/or
EXP810s
EXP100s
0
8
1
6
2
5
3
4
4
3
5
2
6
1
7
0
Table 27 lists the numbers of 14-drive storage expansion enclosures (EXP100s
and/or EXP710s) and 16-drive storage expansion enclosures (EXP810s) that you
can combine for use in a single redundant drive loop pair in the DS4300 dual
controller Turbo model.
Note: For the DS4300 dual controller standard/base model, the maximum number
of enclosures in a drive loop is three regardless of the drive enclosure types
if the three storage expansion enclosure attachment is purchased.
Table 27. Possible combinations of 14-drive and 16-drive storage expansion enclosures per
drive loop for DS4300 dual controller Turbo models only
Number
Total number
of
of drives in
EXP810s
EXP810s
0
0
1
16
2
32
3
48
4
64
5
80
6
96
Table 28 on page 58 lists the numbers of 14-drive storage expansion enclosures
(EXP710s) and 16-drive storage expansion enclosures (EXP810s) that you can
combine for use in a single redundant drive channel/loop pair in a DS4700 Express
configuration that does not have controller firmware version 6.19.xx.xx (which allows
intermixing EXP100s and EXP810s).
Total number
of drives in
Total number
EXP710s
of drives in
and/or
EXP810s
EXP100s
0
112
16
84
32
70
48
56
64
42
80
28
96
14
112
0
Total number
Number of
of drives in
EXP710s/
EXP710s/
EXP100s
EXP100s
7
98
5
70
4
56
3
42
2
28
1
14
0
0
Total number of drives
in a mixed EXP710 and
EXP810 drive loop
=
112
=
100
=
102
=
104
=
106
=
108
=
110
=
112
Total number
of drives in a
Total
mixed
number of
EXP710 and
drives in the
EXP810
DS4300
drive loop
14
=
112
14
=
100
14
=
102
14
=
104
14
=
106
14
=
108
14
=
110
Chapter 3. Cabling the EXP810
57
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