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IBM SATA 1.8-inch and 2.5-inch MLC Enterprise SSDs for IBM System x 4
Technical specifications
Table 2 presents technical specifications for the IBM SATA MLC Enterprise solid-state drives.
Table 2. IBM SATA MLC Enterprise SSD technical specifications
Specification 100 GB 200 GB 400 GB
Part number 00W1120 00W1125 00W1130 49Y6119 49Y6124
Interface 6 Gbps SATA 6 Gbps SATA 6 Gbps SATA 6 Gbps SATA 6 Gbps SATA
Hot-swap drive Yes§ Yes No Yes§ Yes§
Form factor 1.8-inch 2.5-inch 2.5-inch 1.8-inch 1.8-inch
Capacity 100 GB 100 GB 100 GB 200 GB 400 GB
Endurance 5-year life time
(1.5 PB TBW)
5-year life time
(1.5 PB TBW)
5-year life time
(1.5 PB TBW)
5-year life time
(3 PB TBW)
5-year life time
(6 PB TBW)
Data reliability
< 1 in 10
18
bits
read
< 1 in 10
18
bits
read
< 1 in 10
18
bits
read
< 1 in 10
18
bits
read
< 1 in 10
18
bits
read
MTBF > 2,500,000
hours
> 2,500,000
hours
> 2,500,000
hours
> 2,500,000
hours
> 2,500,000
hours
IOPS read* 60,000 60,000 60,000 60,000 60,000
IOPS write* 40,000 40,000 40,000 40,000 40,000
Sequential read rate† 520 MBps 520 MBps 520 MBps 520 MBps 520 MBps
Sequential write rate† 500 MBps 500 MBps 500 MBps 500 MBps 500 MBps
Access time < 0.1 ms < 0.1 ms < 0.1 ms < 0.1 ms < 0.1 ms
Shock 200
g
, 10 ms
1500
g
, 1 ms
1000
g,
0.5 ms
200
g
, 10 ms
1500
g
, 1 ms
1000
g,
0.5 ms
200
g
, 10 ms
1500
g
, 1 ms
1000
g,
0.5 ms
200
g
, 10 ms
1500
g
, 1 ms
1000
g,
0.5 ms
200
g
, 10 ms
1500
g
, 1 ms
1000
g,
0.5 ms
Vibration, operating 0.67
g
rms
5-500 Hz
0.67
g
rms
5-500 Hz
0.67
g
rms
5-500 Hz
0.67
g
rms
5-500 Hz
0.67
g
rms
5-500 Hz
Vibration, non-operating 1.04
g
rms
2-200 Hz
1.04
g
rms
2-200 Hz
1.04
g
rms
2-200 Hz
1.04
g
rms
2-200 Hz
1.04
g
rms
2-200 Hz
Typical power, reads 2.8 W 2.8 W 2.8 W 2.8 W 2.8 W
Typical power, writes 4.6 W 4.6 W 4.6 W 4.6 W 4.6 W
§ This SSD can be a hot-swap or non-hot-swap drive depending on the server in which it is installed.
* 4 KB block transfers
† 128 KB block transfers
The TBW value assigned to a solid-state device is the total bytes of written data (based on the number of
P/E cycles) that a drive can be guaranteed to complete (% of remaining P/E cycles = % of remaining
TBW). Reaching this limit does not cause the drive to immediately fail; the TBW simply denotes the
maximum number of writes that can be guaranteed. A solid-state device will not fail upon reaching the
specified TBW, but at some point after surpassing the TBW value (and based on manufacturing variance
margins), the drive will reach the end-of-life point, at which time the drive will go into read-only mode.
Because of such behavior by solid-state drives, careful planning must be done to use SSDs in the
application environments to ensure that the TBW of the drive will not be exceeded prior to the required life
expectancy.
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