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How Advanced Data Integrity Works in Qumulo Core

USING CHECKSUMS TO PROTECT YOUR DATA

To safeguard customer data, Qumulo Core has features such as protection against media failure and validation of data integrity on aging media by means of a disk scrubber. The following list gives some common examples of common causes of issues with aging media that Qumulo Core protects against.

Media Issue Common Cause
Bit error or bit rot Aging media
Lost data on power-off Firmware power state issue
Write bad data or location Firmware writing bug
Read bad data Firmware caching bug

To complement our existing protection against media errors, firmware issues, and bit errors, the Advanced Data Integrity (ADI) feature ensures that your file system and metadata have checksums on all data stored in your Qumulo cluster.

Verifying ADI Availability on Your Cluster

To verify that ADI is enabled on your cluster, use the qq checksumming_get_status CLI command.

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