User`s guide

DELETE unit-number
DELETE unit-number
Deletes a unit from the list of known units.
Format
DELETE unit-number
Parameters
unit-number
Specifies the logical unit number (for HSDs and HSJs D0–D4094 or T0–T4094,
for HSZs D0–D7, D100-D107, and so forth) that is to be deleted. The unit-number
is the name given the unit when it was created using the ADD UNIT command.
Description
The DELETE command flushes any user data from the write-back cache to the
disk and deletes the logical unit. If the logical unit specified is online to a host,
the unit is not deleted unless the OVERRIDE_ONLINE qualifier is specified. If
any errors occur when trying to flush the user data, the logical unit is not deleted.
In order to delete a unit that has cache errors, you must clear all cache errors
associated with the unit via a CLEAR_ERRORS command.
Qualifiers for HSD and HSJ controllers
OVERRIDE_ONLINE
NOOVERRIDE_ONLINE (Default)
If the logical unit is online to the controller, it is not deleted unless the
OVERRIDE_ONLINE qualifier is specified.
If the OVERRIDE_ONLINE qualifier is specified, the unit is run down, the user
data is flushed to disk, and the logical unit is deleted.
CAUTION
Customer data may be lost or corrupted if the OVERRIDE_ONLINE
qualifier is specified.
Examples
1.
CLI> DELETE D12
Deletes disk unit number 12 from the list of known units.
2.
CLI> DELETE T3 OVERRIDE_ONLINE
Deletes tape unit number 3 from the list of known units even if it is currently
online to a host.
Command Line Interpreter B–35