HP Hitachi Dynamic Link Manager Software - Manual (Page 394)

4. HDLM Operation
370
management, HDLM places online all the normal paths to that HDLM device
regardless of the previous status (such as
Online(E)
or
Offline(C)
) of the
path.
„ Do not execute the HDLM-configuration definition utility (
dlmcfgmgr
) with the
-o
,
-i
, or
-u
parameter while the LU is in use (for example, when performing I/
O or a mount).
„ If a disk partition is created or changed while some of the paths for an LU are
disconnected, the disk partition may not be recognized even after the
disconnected paths have been recovered. After connecting the disconnected
paths, execute the
dlmcfgmgr
utility or restart the host.
„ When the dlmcfgmgr utility is executed to change the HDLM device
configuration, memory might become insufficient due to the HAL daemon
#
. In
this case, the host will not respond.
To avoid this, stop the HAL daemon when executing the
dlmcfgmgr
utility. For
details on how to stop the HAL daemon, see 3.5.3 Notes on Installing HDLM.
#
The HAL daemon detects hardware configuration changes, for example,
when a USB device or CD-ROM is inserted.
„ If you execute the
dlmcfgmgr
utility with the
-v
parameter specified, a hyphen
(
-
) might be displayed in the
Device
column as shown below:
# dlmcfgmgr -v
HDevName Management Device Host Channel Target Lun
/dev/sddlmaa configured /dev/sdd 3 0 0 0
/dev/sdk 3 0 1 0
/dev/sdr 4 0 0 0
- 4 0 1 0
KAPL10302-I /sbin/dlmcfgmgr completed normally.
This state might be caused by the following operations:
• Restarting the host when the paths are disconnected
• Restarting the host after deleting an LU
• Restarting the host after changing the fiber cable connection
• Restarting the host after changing the zone settings for the fibre channel
switch
When using SUSE LINUX Enterprise Server 11, this state might also be caused
if one of the following problems occurs while the system is running: