Dlmsetopt Utility For Setting Hdlm Driver Options; Format; Parameters - Hitachi XP P9500 User Manual

3 The confirmation message appears. Enter y to clear. Otherwise, enter n.
.
KAPL10641-I Reservation Key will now be cleared. Is this OK?
[y/n]:y
KAPL10642-I Reservation Key of sdb was cleared.
KAPL10642-I Reservation Key of sdc was cleared.
Note
• Before executing the dlmpr utility, make sure that the LU for which
persistent reservation will be cleared is not being accessed.
If you perform the following operation while both of the following
conditions exist, an error occurs when reservation-key is read, and
0x???????????????? is displayed.
Conditions
Operation
If the above display error occurs, re-execute the dlmpr utility with the -k
parameter specified.

dlmsetopt Utility for Setting HDLM Driver Options

This utility changes the settings for the HDLM filter driver. Restart the host
machine to apply the changed settings. Note that you do not need to restart
the host machine every time you execute the dlmsetopt utility. If you
execute the dlmsetopt utility more than once, restart the host after you have
finished specifying all settings. Restarting the host enables all the changed
settings.

Format

/opt/DynamicLinkManager/bin/dlmsetopt {-r retrycount | -inqt
InquiryTimeout | -inqr InquiryRetry | -h}

Parameters

-r
Specify the number of retries when memory is allocated in the filter
driver. This memory is allocated for processing I/O requests from users. If
memory allocation fails, the system retries at intervals of 0.05 seconds. If
retrying for a long time results in I/O not being executed, set an
appropriate retry count. If that retry count is exceeded and memory
- Multiple paths are configured to the HDLM device.
- A persistent reservation has been set by the cluster software.
1. Clear persistent reservation, specifying the SCSI device.
2. Execute the dlmpr utility with the -k parameter specified to display
the PersistentReserve information for a SCSI device associated with a
different path.
Utility Reference
Hitachi Dynamic Link Manager User Guide (for Linux(R))
7-35