Table 19. Feature codes for Standby CoD disk drive sets (16 disk drives per
set) (continued)
Feature Code Size and description (see
Notes)
Disk speed in RPM
(K = 1000)
Models
Notes:
1. A regular disk drive feature and a Standby CoD disk drive set feature can be installed
on the same storage unit by using the following rules:
v If a regular disk drive set feature and a Standby CoD disk drive set feature are
contained within the same disk enclosure feature, they must be the same capacity.
The speed can differ.
v The maximum number of Standby CoD disk drive set features that you can have on
a 941 or 94E storage unit is four.
v The maximum number of Standby CoD disk drive set features that you can have on
a 951 or 95E storage unit is six.
v You must balance the number of Standby CoD disk drive set features on the storage
unit with regular disk drive set features. Use the following rules:
– You must have twice as many regular disk drive set features installed in the 941
and 94E storage units as there are Standby CoD disk drive set features. For
example, if you order two Standby CoD disk drive set features (32 drives) for a
941 or 94E storage unit, you must have at least four regular disk drive features (64
drives) on the storage unit.
– You must have three times as many regular disk drive set features installed in the
951 and 95E storage units as there are Standby CoD disk drive set features. For
example, if you order two Standby CoD disk drive set features (32 drives) for a
951 or 95E storage unit, you must have at least six regular disk drive features (96
drives) on the storage unit.
Feature codes for IBM Full Disk Encryption Standby CoD disk
drives
Use the IBM Full Disk Encryption (FDE) Standby Capacity On Demand (Standby
CoD) feature codes to order IBM FDE Standby CoD disk sets for your storage unit.
Each IBM Full Disk Encryption disk drive set feature provides 16 IBM Full Disk
Encryption Standby CoD drives. Table 20 provides the various IBM Full Disk
Encryption Standby CoD disk drive sets that you can order (based on disk size
and RPM), and the feature codes to use.
Table 20. Feature codes for IBM Full Disk Encryption Standby CoD disk drive sets (16 disk
drives per set)
Feature Code Size and description (see
Notes)
Disk speed in
RPM (K = 1000)
Models
5117 300 GB FDE CoD Drive Set 15K
941 and 94E
5217 450 GB FDE CoD Drive Set 15K
5209 146 GB FDE CoD Drive Set 15K
951 and 95E
5309 300 GB FDE CoD Drive Set 15K
5609 450 GB FDE CoD Drive Set 10K
5709 600 GB FDE CoD Drive Set 10K
5759 900 GB FDE CoD Drive Set 10K
5859 3 TB FDE CoD Half Drive Set 7.2K
98 Introduction and Planning Guide
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