June 24Jun 24 Adding another data point: for roughly the last month I’ve been seeing a similar class of errors with an internal LSI 9305-16i / SAS3224 using mpt3sas. I initially thought it might be related to recent Unraid 7.3.x upgrades.Controller firmware:mpt3sas_cm0: LSISAS3224: FWVersion(16.00.12.00)SAS expander:vendor_id: INTEL; product_id: RES3FV288; FWVersion(B057)The errors are repeated attempting task abort, timeout 30000 ms, UNKNOWN(0x2003) Result: hostbyte=0x03, I/O error, and Power-on or device reset occurred. The most visible failures are on cache SSDs behind the SAS/expander path, with BTRFS correcting reads afterward. SMART and Unraid disk health do not indicate normal disk failure. I monitor these types of errors aggressively, so a lot of users may not see them as they do not trigger drive health changes or produce normal alerts. I downgraded to 7.3.0 with no hardware or firmware changes. The system initially booted cleanly, but I later saw the same class of post-boot errors on 7.3.0 as well, including task aborts/resets on the cache SSDs and a BTRFS corrected read. So in my case the downgrade did not fully resolve it, but 7.3.x still not entirely ruled out.
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