Fujitsu ETERNUS DX S5 Series Design Manual page 333

C. Snapshot Configurable NAS Volume Capacity (Guideline)
ETERNUS DX
DX500 S5 (Copy
table size: 1,024MB
[1GB])
DX600 S5 (Copy
table size: 4,096MB
[4GB])
Unit: GB (rounded down to the nearest whole number) or TB for the values in parentheses.
Number Resolution
of
snapshot
´1 ´2
generatio
ns
16 3,448 6,897
(3.4) (6.7)
32 1,871 3,743
(1.8) (3.7)
64 977 1,955
(1.0) (1.9)
128 499 999
(0.5) (1.0)
16 13,796 27,593
(13.5) (26.9)
32 7,489 14,978
(7.3) (14.6)
64 3,912 7,824
(3.8) (7.6)
128 2,000 4,001
(2.0) (3.9)
256 1,011 2,023
(1.0) (2.0)
333
´4 ´8 ´16
13,795 27,590 55,180
(13.5) (26.9) (53.9)
7,487 14,975 29,951
(7.3) (14.6) (29.2)
3,910 7,821 15,642
(3.8) (7.6) (15.3)
1,999 3,998 7,996
(2.0) (3.9) (7.8)
55,186 110,372 220,744
(53.9) (107.8) (215.6)
29,957 59,914 119,829
(29.3) (58.5) (117.0)
15,648 31,296 62,593
(15.3) (30.6) (61.1)
8,002 16,004 32,009
(7.8) (15.6) (31.3)
4,046 8,093 16,186
(4.0) (7.9) (15.8)
´32 ´64
110,360 220,720
(107.8) (215.5)
59,902 119,805
(58.5) (117.0)
31,284 62,569
(30.6) (61.1)
15,992 31,985
(15.6) (31.2)
441,489 882,979
(431.1) (862.3)
239,658 479,317
(234.0) (468.1)
125,187 250,374
(122.3) (244.5)
64,019 128,038
(62.5) (125.0)
32,372 64,744
(31.6) (63.2)
Design Guide