Informix New Storage Manager (PSM)
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Informix introduced the PSM (Primary Storage Manager); a new backup storage manager in version 12.10 that replaced the previous ISM (Informix Storage Manager). The PSM manages storage devices used for backup and restore requests that are issued by Onbar. This storage manager supports both serial and parallel processing for backup and restore requests. PSM is easier to set up and use, even in embedded environments. You just need to perform four simple steps to configure PSM and take an Onbar backup:
You use the Informix onpsm utility to manage storage for Onbar backup and restore operations, including parallel backups that use file devices (disks).
The onsmsync utility provides new commands that you can use to export backups to, and import them from, Informix PSM external device pools.