NIS system support provides backup and recovery for all systems they maintain.
The NSR backup keeps 28 days (4 weekly cycles) of backups. Any file that you have read/write access to can be restored. The procedure is as follows:
cdinto the directory where the file existed/exists (this is not required, but easiest for a single file restore).
recover>prompt, add the file you want to restore using the
addcommand. Other useful commands include
cd. You're basically in a directory browser, where you
addfiles you want to restore.
changetimecommand to set the backup directory browse to a previous time/day. Time is supplied in the format output by the
datecommand (or just issue
changetimewithout a parameter and the current time is displayed and you're prompted for
new save time. Use the same time format displayed as current save time. You can just supply the date and time defaults to midnight, 00:00:00)
relocatecommand and set the directory where the files will be restored.
added the file(s) that you want to restore, issue the
recovercommand to start the restore. If a tape needs to be mounted, a Big Brother alert is generated and the operations center will mount the tape. Simply wait for
versions. You can issue the
versionscommand specifying a file and recover will show which tape save times that the file is available on.
volumescommand show show you what volumes are needed to restore the files.