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gpfs@us.ibm.com
gpfs@us.ibm.com
662 Posts

Pinned topic Flash (Alerts): IBM has identified a problem in IBM Spectrum Scale (GPFS) V4.1.0 thru V5.0.2 levels where the use of Local Read Only Cache (LROC) may result in directory corruption or undetected data corruption in regular files

‏2019-01-04T15:46:33Z |

Summary:
After cached data is moved from memory to the LROC device, any changes to that data should trigger invalidation of  the data stored in LROC.    Due to a problem with the invalidation logic, it is possible for invalidation of this LROC data to be skipped.   This may lead to stale or incorrect data being recalled from LROC and data in memory becoming corrupted, with potential undetected data corruption on disk.

 

See the complete bulletin at:  http://www.ibm.com/support/docview.wss?uid=ibm10741439