Hitachi XP P9500 User Manual page 277

Attribute names that can be
specified in dlmchpdattr
max_transfer
queue_depth
rw_timeout
-u {HTC|XP}
Specifies the type of ODM whose default value you want to change.
HTC: Specify this if you want to change the default value for HTC_ODM.
XP: Specify this if you want to change the default value for XP_ODM.
If this parameter is omitted, the change is applied to both HTC_ODM and
XP_ODM.
-A
Performs automatic hdisk reconfiguration required to reflect the changed
reservation policy. If this parameter is omitted, the hdisk reconfiguration
needs to be performed manually.
-s
Prevents the confirmation message from being displayed when the utility
is executed.
-o
Displays the current value set for the reservation policy.
-h
Displays the format of the dlmchpdattr utility.
Notes
• Before you execute the dlmchpdattr utility, stop all application processes
that access HDLM-managed devices.
Hitachi Dynamic Link Manager User Guide (for AIX(R))
Values that can be specified
no_reserve: Reservation requests are ignored,
and LUs are not reserved.
PR_exclusive: Reservations are converted to
persistent reservations.
The default is PR_exclusive.
Specifies the maximum size of data that can be
transferred to the disk.
The range of specifiable values conforms to the
applicable PdAt ODM rule for HTC_ODM or
XP_ODM.
Specifies the maximum number of requests that
the queue on the disk can hold.
The range of specifiable values conforms to the
applicable PdAt ODM rule for HTC_ODM or
XP_ODM.
Specifies the timeout value for a read or write
operation. The range of specifiable values
conforms to the applicable PdAt ODM rule for
HTC_ODM or XP_ODM.
Utility Reference
7-13