DMP coexistence with HP-UX native multi-pathing

Article:HOWTO74785  |  Created: 2012-03-26  |  Updated: 2012-03-26  |  Article URL http://www.symantec.com/docs/HOWTO74785
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Environment


DMP coexistence with HP-UX native multi-pathing

The HP-UX 11i v3 release includes support for native multi-pathing, which can coexist with DMP. HP-UX native multi-pathing creates a persistent (agile) device in the /dev/disk and /dev/rdisk directories for each disk that can be accessed by one or more physical paths. To maintain backward compatibility, HP-UX also creates legacy devices in the /dev/dsk and /dev/rdsk directories.

DMP recreates disk devices for all paths in the operating system's hardware device tree as DMP nodes in the /dev/vx/dmp and /dev/vx/rdmp directories, independently of the devices that are listed in the /dev/dsk and /dev/rdsk directories. A DMP node represents a disk that can be accessed by one or more physical paths. DMP nodes are not used by the native multi-pathing feature of HP-UX.

DMP commands display device names according to the naming scheme that has been selected.


Legacy ID



uxrt-60_v13534357_v71682876


Article URL http://www.symantec.com/docs/HOWTO74785


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