Hitachi XP P9500 User Manual page 444

Specify this parameter to display the reservation key. The following
explains the items displayed when the -k parameter is specified:
Reservation Key
Regist Key
Key Count
-c
Specify this parameter to clear the reservation key.
sdn
Specify the SCSI device (sdn) 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.
Example
To check the reservation keys, and then clear a reservation key:
1 Execute the dlmpr utility to display the reservation keys for sda, sdb,
.
sdc, sdd, sde, and sdf.
# /opt/DynamicLinkManager/bin/dlmpr -k sda sdb sdc sdd sde sdf
sda
sdb
sdc
sdd
sde
sdf
2 Execute the dlmpr utility to clear the reservation key.
.
# /opt/DynamicLinkManager/bin/dlmpr -c sdb sdc
7-34
If the reservation key is not set, [0x0000000000000000] is displayed.
The registered keys are displayed.
The number of registered keys is displayed.
Reservation Key : [0xaaaaaaaaaaaaaaaa]
Regist Key : [0xaaaaaaaaaaaaaaaa], Key Count : 1
Reservation Key : [0xbbbbbbbbbbbbbbbb]
Regist Key : [0xaaaaaaaaaaaaaaaa], Key Count : 2
Regist Key : [0xbbbbbbbbbbbbbbbb], Key Count : 2
Reservation Key : [0xbbbbbbbbbbbbbbbb]
Regist Key : [0xbbbbbbbbbbbbbbbb], Key Count : 4
Reservation Key : [0xaaaaaaaaaaaaaaaa]
Regist Key : [0xaaaaaaaaaaaaaaaa], Key Count : 4
Reservation Key : [0x0000000000000000]
Reservation Key : [0x0000000000000000]
Regist Key : [0xaaaaaaaaaaaaaaaa], Key Count : 1
Regist Key : [0xbbbbbbbbbbbbbbbb], Key Count : 1
Utility Reference
Hitachi Dynamic Link Manager User Guide (for Linux(R))