Fujitsu MBA3147RC Product Manual - Page 24

Function specifications, Specifications - rpm

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Specifications 2.1.2 Function specifications Table 2.2 shows the function specifications of the HDDs. Table 2.2 Function specifications Item Formatted capacity (*1) Number of disks Number of heads Tracks per Surface Recording mode Areal density Max Recording Density Track Density Track to Track Seek time (*3) (Read/Write) Average Full stroke Number of rotations Average latency time Start/stop time Ready up time (*4) Stop time External dimensions Height Width Length Weight Power consumption (*5) Data transfer Internal rate (*6) External Logical data block length Related standards Data buffer Acoustic noise (Idle) Specification MBA3300RC MBA3147RC MBA3073RC 300 GB (*2) 147 GB (*2) 73.5 GB (*2) 4 2 1 8 4 2 82604 cyl typ. (standard format including the alternate cylinder) 60/62 MEEPRML 124.7 Gbit/inch2 860 kBPI 145 kTPI typ. 0.2 ms / 0.4 ms 3.4 ms / 3.9 ms 8.0 ms / 9.0 ms 15,000 ± 0.2 % min-1 (rpm) 2.0 ms 30 s typ. (60 s max.) 30 s typ. 26.1 mm max. 101.6 mm ± 0.25mm 147.0 mm max. 0.8 kg max. 12.36 W typ. 188 MB/s (standard format, most outer) 1.5 Gbps, 3 Gbps 512 to 528 byte (fixed length) (*7) SAS (T10/1562D Rev. 05), SAS1.1 (T10/1601D Rev. 07), SAM-3 (T10/1561D Rev. 14), SAM-2 (T10/1157D Rev. 24), SPC-2 (T10/1236D Rev. 20), SBC (T10/996D Rev. 8c), Eye mask (*8) 16 MB FIFO ring buffer (*9) 3.6 Bels typ. 20 C141-E252

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Specifications
2.1.2
Function specifications
Table 2.2 shows the function specifications of the HDDs.
Table 2.2
Function specifications
Specification
Item
MBA3300RC
MBA3147RC
MBA3073RC
Formatted capacity (*1)
300 GB (*2)
147 GB (*2)
73.5 GB (*2)
Number of disks
4
2
1
Number of heads
8
4
2
Tracks per Surface
82604 cyl typ. (standard format including the alternate cylinder)
Recording mode
60/62 MEEPRML
Areal density
124.7 Gbit/inch2
Max Recording Density
860 kBPI
Track Density
145 kTPI typ.
Track to Track
0.2 ms / 0.4 ms
Average
3.4 ms / 3.9 ms
Seek time (*3)
(Read/Write)
Full stroke
8.0 ms / 9.0 ms
Number of rotations
15,000 ± 0.2 % min
-1
(rpm)
Average latency time
2.0 ms
Start/stop time
(*4)
Ready up time
Stop time
30 s typ. (60 s max.)
30 s typ.
External
dimensions
Height
Width
Length
26.1 mm max.
101.6 mm ± 0.25mm
147.0 mm max.
Weight
0.8 kg max.
Power consumption (*5)
12.36 W typ.
Internal
188 MB/s (standard format, most outer)
Data transfer
rate (*6)
External
1.5 Gbps, 3 Gbps
Logical data block length
512 to 528 byte (fixed length) (*7)
Related standards
SAS (T10/1562D Rev. 05), SAS1.1 (T10/1601D Rev. 07),
SAM-3 (T10/1561D Rev. 14), SAM-2 (T10/1157D Rev. 24),
SPC-2 (T10/1236D Rev. 20), SBC (T10/996D Rev. 8c),
Eye mask (*8)
Data buffer
16 MB FIFO ring buffer (*9)
Acoustic noise (Idle)
3.6 Bels typ.
20
C141-E252