Mainframe systems hypervolumes
135
Performance and Optimization
Note: Symmetrix DMX-3 systems can support 64K cylinder CKD devices for
operating systems (Siemens) that can exploit it.
Table 26 Device emulations and number of cylinders
Emulation type
Number of
emulated cylinders
Alternate, diagnostic,
device support cylinders
(ADDS)
Symmetrix Internal
Device Support
Cylinders Total support cylinders
3380D 885 3 2 5
3380E 1,770 4 2 6
3380K 2,655 5 2 7
3390-1 1,113 4 2 6
3390-2 2,226 4 2 6
3390-3 3,339 4 2 6
3390-9 10,017 7 2 9
3390-27 32,760 0 2 2
3390-54
a
65,520 0 2 2
a. Contact your local EMC Sales Representative for currently supported IBM controller/DASD emulation modes.
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