Introducing Arcserve Backup Agents and Options › Using Options › Tape Library Option › Using the Option › Manage Tape RAID Devices › Optimize Buffer Size

Optimize Buffer Size

You can improve the performance of a backup or restore job by optimizing the buffer size. The optimum buffer size depends on the following factors:

• The media drive
• The hard disk
• The amount of memory in the system
• The number of jobs that are running simultaneously

You can determine the optimum buffer size for your environment by experimenting with a few different values.

To optimize the buffer size

1. From the Administration menu in the Navigation Bar on the Arcserve Backup Manager Console, select Device Configuration.

   The Device Configuration Welcome dialog opens.

2. Select RAID Device and click Next.

   The Arcserve Backup RAID setup dialog opens.

3. Select the RAID Configuration from the list, choose Properties, and click More. The Change RAID properties dialog opens.

   

4. In the Performance area, select one of the following options:
   • Default--Arcserve Backup calculates and applies an optimum value.
   • Custom--Enter the buffer size in the New Buffer Size (KB) field. For example, to create a buffer size of 150 MB, enter 150000.
5. Click OK to close the dialog and save your changes, and then close the remaining dialogs.