Boasting reductions in restore times of up to and in excess of 85%, QSA's Q/RESTORE - available in 4 versions - is the only restore accelerator for physical media available in the HP NonStop marketplace. Q/RESTORE's patented "random tape access" technology allows selected files and/or fileset(s) to be located and restored within a fraction of the time it would take to complete a traditional restore. In addition to the original Q/RESTORE release designed to run within the Q/TOS environment and as a stand-alone process, Q/RESTORE is now available for use within DSM/TC and the technology has been utilized to create a Q/RESTORE specifically for the TMF environment.

Q/RESTORE - The original version which works within the Q/TOS environment. Information is gathered from the Q/TOS database and Q/RESTORE is started by the $QTOS process. The program resides within the Q/TOS object subvolume.

Q/REST/SA - Retrieves its data from the backup listing in the spooler. Q/REST/SA is started by the user and can reside anywhere on the system.

Q/REST/DT - Retrieves its data from the DSM/TC database via SPI calls to MEDIASERV. Q/REST/DT is started by the mediaserv process via a RECOVER DATAFILE mediacom command and is completely transparent to the user. This program must reside in the same subvolume as the RESTORE program. It is required that a user library be attached to the mediaserv program file.

Q/RECOVER - Retrieves its data from the TMF database via SPI calls to TMFSERV. Q/RECOVER is started by the tmf control program thru a RECOVER FILES tmfcom command and is completely transparent to the user . This program can reside anywhere, but the location must be noted to TMF by a tmfcom alter command. There is also a user library that has to be attached to the tmfdr program file.

While Q/RECOVER performs a function similar to that of the Q/RESTORE program, TMF produces a different tape format than that of backup and is therefore considered a different product.