92Administering disks

Changing the disk-naming scheme

Alternatively, you can change the naming scheme from the command line. The following commands select enclosure-based and operating system-based naming respectively:

#vxddladm set namingscheme=ebn [persistence={yesno}]

#vxddladm set namingscheme=osn [mode={defaultlegacynew}] \ [persistence={yesno}]

The optional persistence argument allows you to select whether the DDL-assigned names of disk devices that are displayed by VxVM remain unchanged after disk hardware has been reconfigured and the system rebooted. By default, both enclosure-based naming and operating system-based naming are persistent.

The following examples illustrate the use of vxddladm set namingscheme command:

#vxddladm set namingscheme=osn mode=default

#vxdmpadm getlungroup dmpnodename=c1t65d0

NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME

===============================================================

c1t65d0 ENABLED Disk

2

2

0

Disk

#vxdmpadm getlungroup dmpnodename=disk25

NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME

===============================================================

disk25

ENABLED Disk

2

2

0

Disk

#vxddladm set namingscheme=osn mode=legacy

#vxdmpadm getlungroup dmpnodename=c1t65d0

NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME

===============================================================

c1t65d0 ENABLED Disk

2

2

0

Disk

#vxdmpadm getlungroup dmpnodename=disk25

NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME

===============================================================

c1t65d0 ENABLED Disk

2

2

0

Disk

#vxddladm set namingscheme=osn mode=new

#vxdmpadm getlungroup dmpnodename=c1t65d0

NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME

===============================================================

disk25

ENABLED Disk

2

2

0

Disk

#vxdmpadm getlungroup dmpnodename=disk25

NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME

===============================================================

disk25

ENABLED Disk

2

2

0

Disk

#vxddladm set namingscheme=ebn

#vxdmpadm getlungroup dmpnodename=c1t65d0

VxVM vxdmpadm ERROR V-5-1-10910 Invalid da-name