iX V6.5 (30391-90011)

334 Chapter7

Logging and Recovery

Logging Preparation

Beneﬁts of TurboSTORE/iX 7x24 True-Online Backup

The beneﬁts of using True-Online backup to store TurboIMAGE/XL databases regardless

of logging enabled are as follows:

• Stores the database when it is open for read/write access, or closed.

• Stores one or more TurboIMAGE/XL databases, along with their related ﬁles including

the TC ﬁle, third-party index ﬁles, jumbo data sets, and B-Tree index ﬁles, if any.

• Stores the database after setting DBSTORE ﬂag, time stamp, and other necessary

information in the root ﬁle.

• Store without the need to stop the user log process before backup, if logging is enabled.

Also, you do not need to start a new log cycle after the backup. Therefore, the

roll-forward recovery, if enabled for roll-forward, need not commence from the

beginning of the ﬁrst log ﬁle.

NOTE

If your database is opened exclusively, such as with mode 3 or 7, True-Online

backup does not store your database, and reports an error:

DATABASE NOT STORED: UNABLE TO STORE SOME DATABASE FILES

BASED ON THE SELECTION CRITERIA, NO FILES WERE STORED. (S/R

1713)

Unlike DBSTORE, STORE with ONLINE=START or ONLINE=END option allows your

database(s) to be open for access when you perform the backup.