HP Hitachi Dynamic Link Manager Software - Manual (Page 527)

7. Utility Reference
503
7.5 dlmpr Utility for Clearing HDLM Persistent Reservation
If the persistent reservation of the LU is not canceled for some reason, this utility clears
the reservation key to cancel the persistent reservation.
This utility can be used when the host OS is Red Hat Enterprise Linux 6.
7.5.1 Format
/opt/DynamicLinkManager/bin/dlmpr {{-k | -c} [sd
n
] [sd
n
] ...
[-a] | -h}
7.5.2 Parameters
-k
Specify this parameter to display the reservation key. The following explains the
items displayed when the
-k
parameter is specified:
Reservation Key
If the reservation key is not set,
[0x0000000000000000]
is displayed.
Regist Key
The registered keys are displayed.
Key Count
The number of registered keys is displayed.
-c
Specify this parameter to clear the reservation key.
sd
n
Specify the SCSI device (
sd
n) for which you want to display or clear the
reservation key. You can specify more than one SCSI device.
If you omit this parameter, the utility displays or clears the reservation keys for all
SCSI devices.
-a
Even if an error occurs during processing, processing continues for all remaining
SCSI devices.
-h
Displays the format of the utility for clearing HDLM persistent reservation.