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Brandon SweeneyAug 6, 2025
Why is Qualstar Q48 throughput performance so poor?
- LldavisAug 6, 2025
Several factors can contribute to poor throughput performance in your Qualstar Storage system. Here are some things to consider: * Try a new tape, as a marginal tape can cause performance issues due to bad spots requiring retries. * Backing up data that compresses poorly or is already compressed will lower performance. * Small file sizes can impact performance. * Confirm that the backup application is utilizing block sizes of at least 32KB, preferably 64KB. Refer to the backup application documentation for details. * Check the network bandwidth from the host computer. If backing up data over a network, consider comparing to a local-only backup. * Ensure the backup server has enough memory to handle the bandwidth of the backup or restore. * Clean the tape drive.
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