Using CA ARCserve Central Protection Manager › How to Manage CA ARCserve D2D Policies › Create Policies › Manage Backup Settings › Specify Backup Schedules

Specify Backup Schedules

CA ARCserve Central Protection Manager lets you specify schedules for your backups.

To specify backup schedules

1. From the CA ARCserve Central Protection Manager home page, click Policies on the Navigation bar.

   The Policies screen opens.

2. Click New to create a new policy.

   The New Policy dialog opens.

3. Click the Schedule tab.

   The Schedule options dialog opens.

   

4. Specify your backup schedule options:
   • Set start date and time--Specifies the start date and start time for your scheduled backups.

     Note: When setting the interval between repeat backup jobs, ensure that you leave enough time to allow the previous job and any related merge jobs to complete before the next backup job starts. This amount of time can be estimated based on your own specific backup environment and history.

   • Incremental Backup--Specifies the backup schedule for Incremental backups.

     As scheduled, CA ARCserve D2D incrementally backs up of only those blocks that have changed since the last successful backup. The advantages of Incremental backups are that it is a very fast backup and it produces a very small backup image. This is the most optimal way to perform backups and you should use this option by default.

     The available options are Repeat and Never. If you select the Repeat option, you must then also specify the elapsed time period (in minutes, hours, or days) between backup attempts. The minimum setting for Incremental backups is every 15 minutes.

     By default the schedule for Incremental backups is to repeat every one day.

   • Full Backup--Specifies the backup schedule for Full backups.

     As scheduled, CA ARCserve D2D performs a Full backup of all used blocks from the source machine. The available options are Repeat and Never. If you select the Repeat option, you must then also specify the elapsed time period (in minutes, hours, or days) between backup attempts. The minimum setting for Full backups is every 15 minutes.

     By default the schedule for Full backups is Never (no scheduled repeat).

   • Verify Backup--Specifies the backup schedule for Verify backups.

     As scheduled, CA ARCserve D2D verifies that the protected data is valid and complete by performing a confidence check of the stored backup image to the original backup source and will resynchronize that image if necessary. A Verify type backup will look at the most recent backup of each individual block and compare the content and information to the source. This comparison verifies that the latest backed up blocks represent the corresponding information at the source. If the backup image for any block does not match the source (possibly because of changes in the system since the last backup), CA ARCserve D2D will refresh (resynchronize) the backup of the block that does not match. A Verify backup can also be used (very infrequently) to get the guarantee of full backup without taking the space of full backup.

     The advantage of a Verify backup is that it produces a very small backup image when compared to full backup because only the changed blocks (blocks that do not match the last backup) are backed up. The disadvantage of a Verify backup is that the backup time is long because CA ARCserve D2D has to compare all of source disk blocks with the blocks of the last backup.

     The available options are Repeat and Never. If you select the Repeat option, you must then also specify the elapsed time period (in minutes, hours, or days) between backup attempts. The minimum setting for Verify backups is every 15 minutes.

     By default the schedule for Verify backups is Never (no scheduled repeat).

5. Click Save.

The backup schedule settings are saved.

Note: If at a given time there are more than one type of backup scheduled to be performed simultaneously, the type of backup that will be performed is based upon the following priorities:

• Priority 1 - Full backup
• Priority 2 - Verify backup
• Priority 3 - Incremental backup

For example, if you have all three types of backup scheduled to be performed at the same time, CA ARCserve D2D performs the Full backup. If there is no Full backup scheduled, but a Verify and Incremental backup is scheduled to be performed at the same time, CA ARCserve D2D performs the Verify backup. A scheduled incremental backup will be performed only if there is no conflict with any other type of backup.