Technical data

Acer | HDS AMS200 User and Reference Guide 37
Table 2.15 Reliability of AMS200 Floor Model
Floor Model Item Model
Floor (RKS+H1J) Model Floor (RKS+RKAJ+H2J) Model
MTBDL (Mean Time
Between Data Lost)
(Note)
About 5 million hour or longer (in RAID 5 configuration)
RAID 6 configuration:
n(n
−
1)(n
−
2)
×
Number of Parity group
×
MTTR
2
(MTBF of the disk drive)
3
RAID 5 configuration:
n(n
−
1)
×
Number of Parity group
×
MTTR
(MTBF of the disk drive)
2
RAID0 configuration
n
×
Number of Parity group
MTBF of the disk drive
RAID1, RAID1+0 configuration
n
×
1
×
Number of Parity group
×
MTTR
(MTBF of the disk drive)
2
MTTR: Mean Time To Repair
n: Number of the mounted disk drive/Parity group
Drop in package
(JIS Z 0200-1997)
No abnormality must be caused by a free drop of level IV.
Radio frequency radiation Conforms to FCC Class A
Reliability
Instantaneous power
failure
10 ms (100% dip)
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.