QNAP has put out a critical NAS firmware fix notice after prolonged pushing by a small business tech IT pro guy in Australia.

If you use QNAP NAS in a RAID 5 or 6 configuration, you should update the firmware immediately.

Wayne Small runs the SBSFaq website which is focused on the concerns of small and medium business IT professionals.

Small said he became aware of a bug affecting QNAP NAS systems running in a RAID 5 or 6 configuration.

Small wrote that he'd used StorageCraft ShadowProtect to back up his data to four RAID’d disk drives.

If a disk failed, then the QNAP rebuild process kicked in and corrupted some of the data through faulty calculations, he said.

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