|
FDRINSTANT is a additional cost FDR facility for non-disruptive backup. It works in concert with SnapShot Copy, a feature of the StorageTek ICEBERG DASD which allows for the "instant" creation of exact duplicates of existing DASD volumes.
FDRINSTANT enhances:
FDR full volume backup
FDRDSF data set backup
FDRCOPY data set copy
FAST COMPAKTOR volume reorganization
It provides non-disruptive backup of offline MVS DASD volumes, both SMS and non-SMS, using technology developed by Innovation Data Processing.
Traditional backups may be disruptive of normal operations. It obviously takes some time to backup a data set or volume. If data sets are being updated by some application while they are being backed up, the backup may not be valid and the data sets may not be usable when they are restored. The usual response to this problem is to quiesce all updates to the data during the backup, disrupting normal operation until the backup is complete.
When used with StorageTek's SnapShot Copy feature, FDRINSTANT allows you to instantly freeze a copy of an online disk volume and easily backup or copy data from that frozen copy as if it was coming from the original volume. Updates to the data need to be quiesced only for the few moments necessary to create the frozen copy.
FDRCOPY has been enhanced to use SnapShot copy. When copying or moving data sets with FDRCOPY, if the input volume and the output volume for a given data set are both within the same ICEBERG, FDRCOPY will issue direct SnapShot commands to copy that data set, resulting in almost instantaneous copies. If the input and output volumes for a data set are not in the same ICEBERG, normal reads and writes are done to copy the data. This feature is automatic; no special options are required to invoke it.
If you are licensed for COMPAKTOR, FDRINSTANT also enhances FASTCPK to use the SnapShot facility to move tracks internally without sending the track contents to the host and back again (READ and WRITE). If you specify SNAPSHOT=YES on the COMPAKT statement, FAST COMPAKTOR will use SnapShot to move tracks on the volume being COMPAKTed, resulting in a savings in elapsed time.
Links to further Information
FDRINSTANT Simple Non-Disruptive Backup of SNAPPED Volumes
|
|
