Chapter 4 Rack and Optional Product Installation
4.4 Standard Installation Rules Before Shipment (Only for Regions Other than EMEA&I)
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
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4.4.3
Drives
This section explains the installation rules for drives.
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2.5" drives
The following table shows the priority order of 2.5" drive installation.
Table 4.7
Priority order of 2.5" drive installation
Up to twenty-four 2.5" drives can be installed in a controller enclosure or a drive enclosure (2.5"
type). Drives with different types can be installed in a single enclosure.
Priority order
Type
Drive capacity/quantity
RAID level
1
SSD
(2.5inch)
100GB x 2
RAID1
2
100GB x 6
RAID1+0
3
100GB x 4
RAID5
4
100GB x 1
Hot spare
5
200GB x 2
RAID1
6
200GB x 6
RAID1+0
7
200GB x 4
RAID5
8
200GB x 1
Hot spare
9
Disk Drive
(2.5inch)
300GB/10krpm x 2
RAID1
10
300GB/10krpm x 6
RAID1+0
11
300GB/10krpm x 6
RAID5
12
300GB/10krpm x 6
RAID6
13
300GB/10krpm x 1
Hot spare
14
450GB/10krpm x 2
RAID1
15
450GB/10krpm x 6
RAID1+0
16
450GB/10krpm x 6
RAID5
17
450GB/10krpm x 6
RAID6
18
450GB/10krpm x 1
Hot spare
19
600GB/10krpm x 2
RAID1
20
600GB/10krpm x 6
RAID1+0
21
600GB/10krpm x 6
RAID5
22
600GB/10krpm x 6
RAID6
23
600GB/10krpm x 1
Hot spare
24
900GB/10krpm x 2
RAID1
25
900GB/10krpm x 6
RAID1+0
26
900GB/10krpm x 6
RAID5
27
900GB/10krpm x 6
RAID6
28
900GB/10krpm x 1
Hot spare