HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 312)

When an LU is deleted via dynamic reconfiguration, path IDs become
inconsecutive, as shown in this example. If you reboot the host, path IDs
might change because they are reconfigured during the reboot.
Adding a Path to an Existing LU by Dynamic Reconfiguration
Note
¢
Only data disks can be reconfigured dynamically. You cannot change
the configuration of boot disks.
This section describes how to dynamically add a path to an existing LU.
1
.
Set a storage system or a switch to make the OS recognize the path.
# cfgadm -c configure ap_id
Check ap_id in the list of configurable hardware information that is
displayed by the cfgadm -al command.
The following is an example of the command:
# cfgadm -al
Ap_Id Type Receptacle
Occupant Cond
system:slot0 cpu/mem connected
configured ok
system:slot1 sbus-upa connected
configured ok
2
.
Check the newly recognized path in the syslog.
The following is an example of the command. Specify the number of lines
to display taking into consideration that three to four lines for each
recognized path are output to the log.
# tail -10 /var/adm/messages
Apr 2 16:02:57 shiga genunix: [ID 408114 kern.info] /pseudo/
dlmndrv@2/dlmfdrv@w50060e8010027a80,5 (dlmfdrv54) online
Apr 2 16:02:57 shiga devfsadmd[89]: [ID 937045 daemon.error]
failed to lookup dev name for /pseudo/dlmndrv@2/
dlmfdrv@w50060e8010027a80,5
Apr 2 16:03:31 shiga scsi: [ID 583861 kern.info] ssd4126 at
fp2: unit-address w50060e8010027a84,5: 642400
Apr 2 16:03:31 shiga genunix: [ID 936769 kern.info] ssd4126 is /
pci@400/pci@2/pci@0/pci@8/SUNW,qlc@0/fp@0,0/
ssd@w50060e8010027a84,5
Apr 2 16:03:31 shiga genunix: [ID 408114 kern.info] /pci@400/
pci@2/pci@0/pci@8/SUNW,qlc@0/fp@0,0/ssd@w50060e8010027a84,5
(ssd4126) online
Apr 2 16:03:31 shiga devfsadmd[89]: [ID 937045 daemon.error]
failed to lookup dev name for /pci@400/pci@2/pci@0/pci@8/
SUNW,qlc@0/fp@0,0/ssd@w50060e8010027a84,5
Apr 2 16:03:36 shiga scsi: [ID 583861 kern.info] ssd4127 at
fp3: unit-address w50060e8010027a84,5: 642400
Apr 2 16:03:36 shiga genunix: [ID 936769 kern.info] ssd4127 is /
pci@400/pci@2/pci@0/pci@8/SUNW,qlc@0,1/fp@0,0/
ssd@w50060e8010027a84,5
Apr 2 16:03:36 shiga genunix: [ID 408114 kern.info] /pci@400/
4-44
HDLM Operation
Hitachi Dynamic Link Manager (for Solaris) User Guide