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Table 2.16
Reliability of AMS200 Floor Model
Item
Reliability
Note: The value of the MTBDL is calculated in the following configuration: RAID 5:68 sp
((15D+1P)(4group+4(spare)). This value varies on user's system configuration.
38
Chapter 2 Planning for Installation and Operation
Model
Floor (RKS+H1J) Model
MTBDL (Mean Time
About 5 million hour or longer (in RAID 5 configuration)
Between Data Lost)
RAID 6 configuration:
(Note)
n(n−1)(n−2)×Number of Parity group×MTTR
RAID 5 configuration:
RAID0 configuration
RAID1, RAID1+0 configuration
MTTR: Mean Time To Repair
n: Number of the mounted disk drive/Parity group
Drop in package
No abnormality must be caused by a free drop of level IV.
(JIS Z 0200-1997)
Radio frequency radiation
Conforms to FCC Class A
Instantaneous power
10 ms (100% dip)
failure
Floor Model
(MTBF of the disk drive)
(MTBF of the disk drive)
n(n−1)×Number of Parity group×MTTR
MTBF of the disk drive
n×Number of Parity group
(MTBF of the disk drive)
n×1×Number of Parity group×MTTR
Floor (RKS+RKAJ+H2J) Model
3
2
2
2
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