Appendix D Notes on Use for Data Replication
21
Appendix D Notes on Use for Data
Replication
D
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(1) S400/S1400/S2400/S2800
S400/S1400/S2400/S2800 disk array allows the user or the system engineer to bind logical disks.
1. Specify the capacity of one logical disk in units of 1 GB*1.
2. Now you can select a recommended capacity (already used in the 3000/4000 series disk array)
from a pull-down list.
The table below shows the recommended capacities. (A logical disk’s capacity smaller than
0.1 GB*1 is shown rounded*2 on the configuration setting summary display.):
3. On S400/S1400/S2400/S2800 disk array, you can bind logical disks of the same capacity
regardless of pool type and RAID configuration. (On the 100/1000/2000 series disk array
(not including S400/S1400/S2400), capacities of logical disks you can use are different
depending on the RAID configuration.)
4. The real capacity of each logical disk includes additional 2 MB region for disk control, which
makes it available for the user. On S400/S1400/S2400/S2800, binding a pool may cause the
capacity assigned to a pool (pool used capacity) to exceed the capacity of the logical disks.
*1: iSM handles 1024 KB as 1 MB.
View on iSM Logical disk capacity (including control region)
2.0 GB 2128 MB
4.1 GB 4256 MB
8.3 GB 8512 MB
16.6 GB 17024 MB
33.2 GB 34048 MB
66.4 GB 68096 MB
132.9 GB 136190 MB
162.0 GB 165984 MB
265.9 GB 272384 MB
531.9 GB 544768 MB
1063.9 GB 1089536 MB