Home > Storage > PowerStore > Databases and Data Analytics > Dell PowerStore Metro Node with Oracle > Multipath I/O
Multipathing (MPIO) is a software solution that is implemented at the host-operating-system level. Although multipathing is optional, it provides path redundancy, failover, and performance-enhancing capabilities. It is highly recommended to deploy the solution in any environment where availability and performance are critical.
Both device mapper multipath (DM-Multipath) and EMC PowerPath are supported multipathing solutions by metro node. The following list includes the main benefits of using an MPIO solution:
The native Linux multipath solution is supported and bundled with most popular Linux distributions in use today. Because the software is widely and readily available at no additional cost, many administrators prefer it to other third-party solutions. Only one multipath software solution should be enabled on the host.
For information about configuring EMC PowerPath and DM-Multipath, see References for more information.
DM-Multipath was used for this paper. Specific information regarding DM-Multipath and PowerStore metro node is provided in this section.
For ease of management, assign meaningful names (aliases) to the multipath devices of metro node virtual volumes. For example, create aliases that are based on the application type and environment that the device supports. The following snippet assigns alias ora-asm-data-001 to the PowerStore metro node LUN with WWN 60001440000000106000956e7780d6e4.
multipaths {
multipath {
wwid "60001440000000106000956e7780d6e4"
alias ora-asm-data-001
}
}