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HSG80 Array Controller V8.7 Command Line Interface Reference Guide
2–35
ADD UNITS
NOTE: The NORUN switch cannot be specified for partitioned units.
ENABLE_ACCESS_PATH=
DISABLE_ACCESS_PATH=
Determines which host connections can access the unit. The allowable variables
are:
•
ALL
•
A string of connection names separated by commas and enclosed in
parentheses.
Setting ENABLE_ACCESS_PATH=ALL permits all host connections to access the
unit. This is the default.
CAUTION: If the storage subsystem has more than one host connection, access path
must be specified carefully to avoid giving undesirable host connections access to the
unit. The default condition is that access paths to all host connections are enabled. To
restrict host access to a set of host connections, specify
DISABLE_ACCESS_PATH=ALL when the unit is added, then use the SET unit
command to specify the set of host connections that are to have access to the unit.
Enabling the access path to a particular host connection does not override previously
enabled access paths. All access paths previously enabled are still valid; the new host
connection is simply added to the list of connections that can access the unit.
The procedure of restricting access by enabling all access paths and then disabling
selected paths is particularly not recommended because of the potential data/security
breach that occurs when a new host connection is added.
MAX_READ_CACHED_TRANSFER_SIZE=n
MAX_READ_CACHED_TRANSFER_SIZE=32 (default)
WRITE_PROTECT
NOWRITE_PROTECT
✓
✓
✓
✓
✓
WRITEBACK_CACHE
NOWRITEBACK_CACHE
✓
✓
✓
✓
Table 2–1: ADD UNITS Switches for New Containers (Continued)
Switch
Cont
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N0T
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Tr
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a
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P
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