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HP Hitachi Dynamic Link Manager Software User Manual

Page 339

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7. Utility Reference

317

multiple pairs, separate them by using a space, and enclose the list of pairs in

double quotation marks (

"

).

Table 7-3 shows the attribute names and values that can be specified in the

dlmchpdattr

utility.

Table 7-3: Attribute names and values that can be specified in dlmchpdattr

-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.

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.