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Manual
1/2/2014
PSFS1XXXXGXXXX
Viking Technology
Revision B7
Page 16 of 60
www.vikingtechnology.com
CAPACITY
RAW
CAPACITY
USER
512_LBA_COUNT
64
50
97,696,368
96
80
156,301,488
96
90
175,836,528
96
96
187,557,552
96
75
146,533,968
128
120
234,441,648
128
128
250,069,680
128
121
236,395,152
128
100
195,371,568
192
160
312,581,808
192
180
351,651,888
192
192
375,093,936
192
150
293,046,768
256
240
468,862,128
256
256
500,118,192
256
251
490,350,672
256
225
439,559,568
256
200
390,721,968
384
360
703,282,608
384
384
750,166,704
384
335
654,445,008
384
300
586,072,368
512
480
937,703,088
512
512
1,000,215,216
512
450
878,977,968
512
400
781,422,768
2.2 Performance
Maximum SSD performance can be achieved for certain workloads by:
Initiating read and write transfers for random accesses with small block
sizes of 4k bytes to optimize IOPs performance for applications such as
databases, OLTP etc.
Initiating read and write transfers for sequential accesses with large blocks
(128k or larger) to optimize performance toward throughput (MBps) for
applications such as video streaming, data acquisition etc.
Issuing transfers at starting LBAs that align the access on 4k boundaries:
o Minimizes or eliminates internal Read-Modify-Write operations
o Align on 4k boundaries is optimal for SSD capacities up to 256 GB
o For SSD capacities greater than 256 GB, aligning on 8k boundaries
is optimal