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HP Archive Backup System for OpenVMS Guide to Operations

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Saving and Res<strong>to</strong>ring Data<br />

3.5 Saves and Res<strong>to</strong>res<br />

• WEEKLY FULL, DAILY INCREMENTAL (Saves only) - This option enables you <strong>to</strong> create<br />

a single save request that executes a full backup operation once per week on the day<br />

specified in the Base Date, and an incremental backup operation <strong>for</strong> each subsequent day<br />

after the full backup operation is successful. ABS per<strong>for</strong>ms the full backup operation on a<br />

fixed day of the week during the 7-day cycle.<br />

The Weekly Full/Daily Incremental Process:<br />

For example, if the save request starts the full backup operation on Monday, ABS will<br />

always per<strong>for</strong>m the full backup operation on Monday <strong>for</strong> that particular save request. This<br />

happens even if some of the subsequent incremental backup operations fail.<br />

Example A:<br />

Day<br />

Monday<br />

Type<br />

Full<br />

Tuesday Level 1<br />

Wednesday Level 2<br />

Thursday Level 3<br />

Friday Level 4<br />

Saturday Level 5<br />

Sunday Level 6<br />

Monday<br />

Full<br />

If that full backup operation fails, the cycle is repeated until a successful, full backup operation<br />

is achieved. ABS considers success and qualified success as a successful completed<br />

operation. ABS considers all other status as a failed operation.<br />

Example B:<br />

Day Date and Time Run Type Result<br />

Monday 31-MAR-1997 02:00 Full Failure<br />

Tuesday 01-APR-1997 02:00 Full Failure<br />

Wednesday 02-APR-1997 02:00 Full Success<br />

Thursday 03-APR-1997 02:00 Level 3 Success<br />

Friday 04-APR-1997 02:00 Level 4 Failure<br />

Saturday 05-APR-1997 02:00 Level 5 Success<br />

Sunday 06-APR-1997 02:00 Assume skipping this day using a 3rd<br />

party scheduler<br />

Monday 07-APR-1997 02:00 Full Success<br />

– If you are manually setting up your schedule <strong>to</strong> skip special days, ABS skips the next<br />

level of an incremental backup operation. In Example B, ABS skips Sunday and does<br />

Saving and Res<strong>to</strong>ring Data 3–23

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