BurnInTest V9.0 Pro 1011 - Long Run Data Verify failure

[pm_user]

Hello,

We are running BurnInTest V9.0 Pro 1011 on Windows Server 2016. After a long run disk test (over 6 days), we encountered a Data Verify failure after 4833 cycles:
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DETAILED EVENT LOG
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LOG NOTE: 2018-11-02 15:26:41, Status, Main Tests started
LOG NOTE: 2018-11-02 15:26:41, CPU, SSE4a test(s) selected, but CPU feature not detected
SERIOUS: 2018-11-08 08:45:31, Disk, C: Data Verify failure
LOG NOTE: 2018-11-08 08:45:31, Disk, File: C:\BurnInTest test files\~bittestC00091, Value Read: 127, Value Expected: 218, Offset in file 6564511680, Ops: 122050656075776
LOG NOTE: 2018-11-08 08:45:31, Disk, Disk Error (C: Data Verify failure in Cycle 4833 with pattern Random data pattern
LOG NOTE: 2018-11-09 14:06:56, Status, Test run stopped

Does this indicate a real disk problem?

Thank you

[David (PassMark)]

Yes. most likely it was a real error. But as data from the disk is read into RAM by the CPU, there is also scope for the real root cause to be elsewhere. e.g. a bad byte in RAM that happened to be being used as a disk I/O buffer. Or maybe a soft error.

With only 1 fault in 6 days it is going to be very hard to track down the real cause.