EMC VMAX 200K - IBM 2107 Support; Logical Control Unit Capabilities; Logical Control Unit Maximum Values

l
Sequential Data Striping
l
Multi-Path Lock Facility
l
HyperSwap
Note
VMAX can participate in a z/OS Global Mirror (XRC) configuration only as a
secondary.
IBM 2107 support
When VMAX arrays emulate an IBM 2107, they externally represent the array serial
number as an alphanumeric number in order to be compatible with IBM command
output. Internally, VMAX arrays retain a numeric serial number for IBM 2107
emulations. HYPERMAX OS handles correlation between the alphanumeric and
numeric serial numbers.
Logical control unit capabilities
The following table lists logical control unit (LCU) maximum values:
Table 34 Logical control unit maximum values
Capability Maximum value
LCUs per director slice (or port) 255 (within the range of 00 to FE)
LCUs per VMAX split
a
255
Splits per VMAX array 16 (0 to 15)
Devices per VMAX split 65,280
LCUs per VMAX array 512
Devices per LCU 256
Logical paths per port 2,048
Logical paths per LCU per port (see Table 35
on page 76)
128
VMAX system host address per VMAX array
(base and alias)
64K
I/O host connections per VMAX engine 32
a.
A VMAX split is a logical partition of the VMAX system, identified by unique devices, SSIDs,
and host serial number. The maximum VMAX system host address per array is inclusive of
all splits.
The following table lists the maximum LPARs per port based on the number of LCUs
with active paths:
Mainframe Features
IBM 2107 support 75