HP-UX 11i v3 Crash Dump Improvements

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5.5 Expansion/contraction of dump device
The HP-UX I/O subsystem in HP-UX 11i v3 supports online expansion and contraction of the size
of luns. The dump subsystem will get event notification when the size of a dump device (full raw
disk) expands or contracts. Dump will then dynamically update the internal data structures and at
dump time the expanded/contracted device size will be used.
5.6 Additional features
5.6.1 Supporting character device special file
The crashconf(1m)/crashconf(2) commands have been enhanced in HP-UX 11i v3 to accept both
character as well as block device special files for configuration.
5.6.2 Auto re-configuration of lvm logical volumes
The dump subsystem will get an event notification when attributes of a logical volume change,
and will automatically reconfigure the affected dump volumes. For example, when the lvextend or
lvreduce commands are used to extend/reduce the size of an already configured dump volume,
dump will be notified and will reconfigure the volume with the modified size.
6 References
http://docs.hp.com/en/8651/HP-UX_Compressed_Dump_For_11iV1.pdf
(Installing and Configuring the Compressed Dump Utility on HP-UX 11i v1)
http://docs.hp.com/en/5434/Cdump_WP.book.pdf
(Compressed Dump White Paper)
http://docs.hp.com/en/netsys.html#Storage%20Area%20Management
(HP-UX 11i v3 Mass Storage Device Naming White Paper)
http://docs.hp.com/en/netsys.html#Storage%20Area%20Management
(The Next Generation Mass Storage Stack - HP-UX 11i v3 White Paper)
7 For more information
http://www.hp.com/go/hpux11i