I did "smartctl --all /dev/sda > smartctl_out.txt". I got over 200 lines of output. The most recent error reported in the output file is this one: =============== Error 66 occurred at disk power-on lifetime: 13741 hours (572 days + 13 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- 60 00 08 ff ff ff 4f 00 00:05:43.747 READ FPDMA QUEUED 61 00 08 ff ff ff 4f 00 00:05:43.746 WRITE FPDMA QUEUED ea 00 00 00 00 00 a0 00 00:05:43.746 FLUSH CACHE EXT ef 10 02 00 00 00 a0 00 00:05:43.746 SET FEATURES [Enable SATA feature] 27 00 00 00 00 00 e0 00 00:05:43.745 READ NATIVE MAX ADDRESS EXT [OBS-ACS-3] =============== I can't really make heads or tails of this. I also notice in my system e-mail these 2 messages, bot on Thursday, May 25: (1st message) Device: /dev/sda [SAT], 8 Currently unreadable (pending) sectors (2nd message, 1 minute later) Device: /dev/sda [SAT], 8 Offline uncorrectable sectors I also tried "smartctl -t short /dev/sda", followed later by "smartctl -l selftest /dev/sda". The result: =============== SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed without error 00% 13813 - =============== If I understand the "-all" output correctly, the "-long" test would take about 4 hours, so I'm not trying that until later this week. What else from the "smartctl" output should I post here? What other "smartctl" functionality should I try or use? Thank-you. Bill. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx