HP XP Racks - Manual (Page 285)

Parameters
-a Attribute=Value
Specifies one or more attribute name and attribute value pairs. If
specifying multiple pairs, separate them by using a space, and enclose
the list of pairs in double quotation marks (").
The following table lists the attribute names and values that can be
specified.
Table 7-3 Attribute names and values that can be specified in
dlmchpdattr
Attribute names that can be
specified in dlmchpdattr
Values that can be specified
reserve_policy Specifies the reservation policy to be used.
no_reserve: Reservation requests are ignored,
and LUs are not reserved.
PR_exclusive: Reservations are converted to
persistent reservations.
The default is PR_exclusive.
max_transfer 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.
queue_depth 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.
rw_timeout 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.
-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
Utility Reference
7-13
Hitachi Dynamic Link Manager User Guide for AIX®