Fujitsu ETERNUS DX S5 Series, Design Manual

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Number of Installable Hot Spares
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For the ETERNUS DX60 S5
Register one hot spare for each drive type.
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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
Total number of drives
Up to 120 Up to 240 Up to 480 Up to 720 Up to 960
Up to
1,080 Up to
1,200
DX100 S5 1 2 — — — — —
DX200 S5 1 2 3 — — — —
DX500 S5 1 2 4 6 — — —
DX600 S5 1 2 4 6 8 9 —
DX900 S5 1 2 4 6 8 9 10
Table 19 Number of Installable Hot Spares (2/3)
Model
Total number of drives
Up to
1,320 Up to
1,440 Up to
1,560 Up to
1,680 Up to
1,800 Up to
1,920 Up to
2,040
DX100 S5 — — — — — — —
DX200 S5 — — — — — — —
DX500 S5 — — — — — — —
DX600 S5 — — — — — — —
DX900 S5 11 12 13 14 15 16 17
Table 20 Number of Installable Hot Spares (3/3)
Model
Total number of drives
Up to
2,160 Up to
2,280 Up to
2,304
DX100 S5 — — —
DX200 S5 — — —
DX500 S5 — — —
DX600 S5 — — —
DX900 S5 18 19 20
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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.
2. Basic Functions
RAID Functions
43 Design Guide