IBM XIV Gen3 Series User Manual

Table 8. Capacity for models 281x-114 and 281x-214 XIV systems
Number of
modules in the
rack
Number of
interface modules
Number of data
modules
Number of disk
drives
Total usable capacity in TB
(1 TB limited capacity / 2
TB / 3 TB / 4 TB / 6 TB)
6 3 3 72 28 / 55 / 84 / 112 / 169
9 6 3 108 44 / 88 / 132 / 177 / 267
10 6 4 120 51 / 102 / 154 / 207 / 311
11 6 5 132 56 / 111 / 168 / 225 / 338
12 6 6 144 63 / 125 / 190 / 254 / 382
13 6 7 156 67 / 134 / 203 / 272 / 409
14 6 8 168 75 / 149 / 225 / 301 / 453
15 6 9 180 80 / 161 / 243 / 325 / 485
Table 9. Capacity for model 281x-314 XIV systems
Number of
modules in the
rack
Number of
interface modules
Number of data
modules
Number of disk
drives
Total usable capacity in TB
(4 TB / 6 TB)
9 6 3 108 177 / 267
10 6 4 120 207 / 311
11 6 5 132 225 / 338
12 6 6 144 254 / 382
13 6 7 156 272 / 409
14 6 8 168 301 / 453
15 6 9 180 325 / 485
Note: DDMs in the XIV system do not need to be repaired immediately upon
failure because the XIV system is fully redundant, even with the failures.
Replacement for failed DDMs is deferred until the third DDM fails, or until
another component requires immediate onsite maintenance. For administrators, if a
DDM fails but replacement is deferred, the IBM XIV Storage Management GUI
displays the DDM as pale red, and the Status as Failed (Deferred). When there are
three or more DDMs in failed state, the IBM XIV Storage Management GUI
displays the failed DDMs as bright red, and the Status as Failed. For IBM service
representative (technicians), the IBM XIV Storage Management GUI displays the
failed DDM as bright red, and the Status as Failed regardless of whether the
replacement is deferred.
Processors and memory
The information lists the number of processors and memory that are available in
fully populated and partially populated racks.
Table 10. Processors and memory for XIV model 281x-314
Number of modules
in the rack
Number of
processors
Memory cache in GB
(4 TB / 6 TB)
SSD cache in TB
(800 GB SSD)
9 18 864 7.2
10 20 960 8.0
11 22 1056 8.8
16 IBM XIV Gen3 281x-11x, 281x-21x, and 281x-314 Planning Guide

IBM XIV Gen3 Series Specifications

General

Brand	IBM
Model	XIV Gen3 Series
Category	Storage
Language	English