Table 18 Number Of Installable Hot Spares (1/3); Table 19 Number Of Installable Hot Spares (2/3); Table 20 Number Of Installable Hot Spares (3/3) - Fujitsu ETERNUS DX S5 Series Design Manual

2. Basic Functions
RAID Functions
■
Number of Installable Hot Spares
• For the ETERNUS DX60 S5
Register one hot spare for each drive type.
For the ETERNUS DX100 S5/DX200 S5 and the ETERNUS DX500 S5/DX600 S5/DX900 S5
•
The number of required hot spares is determined by the total number of drives.
The following table shows the recommended number of hot spares for each drive type.
Table 18 Number of Installable Hot Spares (1/3)
Model
DX100 S5
DX200 S5
DX500 S5
DX600 S5
DX900 S5
Table 19 Number of Installable Hot Spares (2/3)
Model
DX100 S5
DX200 S5
DX500 S5
DX600 S5
DX900 S5
Table 20 Number of Installable Hot Spares (3/3)
Model
DX100 S5
DX200 S5
DX500 S5
DX600 S5
DX900 S5
■
Types of Drives
If a combination of SAS disks, Nearline SAS disks, SSDs, and SEDs is installed in the ETERNUS DX, each different
type of drive requires a corresponding hot spare.
2.5" and 3.5" drive types are available. The drive type for high-density drive enclosures is 3.5".
The capacity of each hot spare must be equal to the largest capacity of the same-type drives.
Total number of drives
Up to 120 Up to 240 Up to 480
1 2 —
1 2 3
1 2 4
1 2 4
1 2 4
Total number of drives
Up to Up to Up to
1,320 1,440 1,560
— — —
— — —
— — —
— — —
11 12 13
Total number of drives
Up to Up to Up to
2,160 2,280 2,304
— — —
— — —
— — —
— — —
18 19 20
43
Up to
Up to 720 Up to 960
1,080
— — —
— — —
6 — —
6 8 9
6 8 9
Up to Up to Up to
1,680 1,800 1,920
— — —
— — —
— — —
— — —
14 15 16
Up to
1,200
—
—
—
—
10
Up to
2,040
—
—
—
—
17
Design Guide