IBM DS8700, Introduction And Planning Manual

Page: 128 / 256

Table 25. DS8000 RAID capacities for RAID 10 arrays (continued)
Disk size and
Storage Unit
Total physical
capacity (GB) per
disk drive set
Fixed block (FB)
or count key
data (CKD)
Effective capacity in GB
(Number of Extents)
(See Notes)
Rank with RAID 10 array
3 + 3 4 + 4
300 GB (FC)
DS8700
4800 FB 848.25
(790)
1131.72
(1054)
CKD 846.30
(884)
1129.68
(1180)
400 GB (SSD)
DS8800
6400 FB 1154.27
(1075)
1540.82
(1435)
CKD 1153.61
(1205)
1538.47
(1607)
450 GB (FC)
DS8700
7200 FB 1273.45
(1186)
1699.73
(1583)
CKD 1271.37
(1328)
1696.43
(1772)
450 GB (SAS)
DS8800
7200 FB 1275.60
(1188)
1702.95
(1586)
CKD 1274.24
(1331)
1699.31
(1775)
600 GB (FC)
DS8700
9600 FB 1726.57
(1608)
2304.25
(2146)
CKD 1726.57
(1608)
2300.53
(2403)
600 GB (SAS)
DS8800
9600 FB 1701.88
(1585)
2270.96
(2115)
CKD 1699.31
(1775)
2267.02
(2368)
900 GB (SAS)
DS8800
14,400 FB 2554.43
(2379)
3409.13
(3175)
CKD 2551.36
(2665)
3402.45
(3554)
2 TB (SATA)
DS8700
32000 FB 5831.49
(5431)
7780.33
(7246)
CKD 5823.60
(6083)
7765.13
(8111)
Notes:
1. Physical capacities are in decimal gigabytes (GB). One decimal GB is 1,000,000,000
bytes.
2. Disk drive sets contain either 8 or 16 drives. An array site contains 8 drives. The
effective capacities shown are for a single array, which resides in one array site.
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Introduction and Planning Guide