HP Hitachi Dynamic Link Manager Software - Manual (Page 409)

4. HDLM Operation
385
to create an HDLM device file for the new LU.
Even if you add a path to an HDLM device that is not managed by HDLM and restart
the host, the HDLM device will not be managed by HDLM.
An
AutoPATH_ID
is allocated sequentially as the HDLM recognizes a SCSI device
during start up of the host. Therefore, an
AutoPATH_ID
for the same path may change
whenever the host starts.
If a different LU is allocated to the same path name, a new HDLM device will be
allocated to the newly allocated LU after restarting the host restarts. In such case, the
previous HDLM device is unregistered automatically.
4.6.6 Note on adding a BladeSymphony I/O drawer
When you restart the host after adding a BladeSymphony I/O drawer
#
, and if you
execute the HDLM-configuration definition utility (
dlmcfgmgr -v
), a hyphen (
-
)
might be displayed in the
Device
column of the execution results.
# dlmcfgmgr -v
HDevName Management Device Host Channel Target
Lun
/dev/sddlmaa configured /dev/sde 2 0 0 1
- 0 0 0 0
/dev/sda 1 0 0 0
/dev/sddlmab configured - 0 0 0 1
/dev/sdf 2 0 0 2
/dev/sdb 1 0 0 1
KAPL10302-I /sbin/dlmcfgmgr completed normally.
To change to a status that does not display a hyphen, execute the
dlmcfgmgr
utility
with the
-u
parameter specified.
For details on the
dlmcfgmgr
utility, see 7.3 dlmcfgmgr Utility for Managing the
HDLM Configuration.
#
An I/O drawer is considered added in either of the following situations:
• When adding an I/O drawer to the host
• When adding an HBA to an I/O drawer that is already connected to the host