April 15, 201115 yr so I was preclearing a WD15EADs 1.5TB WD HD, it precleared fine. I attempted to stop the array so I could add the drive to the array. I clicked on stop array and noticed the following in the log that I had in a telnet window: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: === START OF READ SMART DATA SECTION === Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SMART overall-health self-assessment test result: PASSED Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: General SMART Values: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Offline data collection status: (0x80)^IOffline data collection activity Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^Iwas never started. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^IAuto Offline Data Collection: Enabled. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Self-test execution status: ( 0)^IThe previous self-test routine completed Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^Iwithout error or no self-test has ever Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^Ibeen run. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Total time to complete Offline Apr 15 17:32:43 Tower preclear_disk-diff[14460]: data collection: ^I^I (34080) seconds. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Offline data collection Apr 15 17:32:43 Tower preclear_disk-diff[14460]: capabilities: ^I^I^I (0x7b) SMART execute Offline immediate. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^IAuto Offline data collection on/off support. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^ISuspend Offline collection upon new Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^Icommand. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^IOffline surface scan supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^ISelf-test supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^IConveyance Self-test supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^ISelective Self-test supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SMART capabilities: (0x0003)^ISaves SMART data before entering Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^Ipower-saving mode. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^ISupports SMART auto save timer. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Error logging capability: (0x01)^IError logging supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^IGeneral Purpose Logging supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Short self-test routine Apr 15 17:32:43 Tower preclear_disk-diff[14460]: recommended polling time: ^I ( 2) minutes. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Extended self-test routine Apr 15 17:32:43 Tower preclear_disk-diff[14460]: recommended polling time: ^I ( 255) minutes. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Conveyance self-test routine Apr 15 17:32:43 Tower preclear_disk-diff[14460]: recommended polling time: ^I ( 5) minutes. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SCT capabilities: ^I (0x303f)^ISCT Status supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^ISCT Feature Control supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ^I^I^I^I^ISCT Data Table supported. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SMART Attributes Data Structure revision number: 16 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Vendor Specific SMART Attributes with Thresholds: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 3 Spin_Up_Time 0x0027 100 253 021 Pre-fail Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 4 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 18 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 3 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 2 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 10 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 194 Temperature_Celsius 0x0022 119 117 000 Old_age Always - 31 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SMART Error Log Version: 1 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: No Errors Logged Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SMART Self-test log structure revision number 1 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: No self-tests have been logged. [To run self-tests, use: smartctl -t] Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SMART Selective self-test log data structure revision number 1 Apr 15 17:32:43 Tower preclear_disk-diff[14460]: SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 1 0 0 Not_testing Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 2 0 0 Not_testing Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 3 0 0 Not_testing Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 4 0 0 Not_testing Apr 15 17:32:43 Tower preclear_disk-diff[14460]: 5 0 0 Not_testing Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Selective self-test flags (0x0): Apr 15 17:32:43 Tower preclear_disk-diff[14460]: After scanning selected spans, do NOT read-scan remainder of disk. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: If Selective self-test is pending on power-up, resume after 0 minute delay. Apr 15 17:32:43 Tower preclear_disk-diff[14460]: == Apr 15 17:32:43 Tower preclear_disk-diff[14460]: ============================================================================ Apr 15 17:32:43 Tower preclear_disk-diff[14460]: Apr 15 17:36:59 Tower emhttp: shcmd (45): /etc/rc.d/rc.samba stop | logger Apr 15 17:36:59 Tower emhttp: shcmd (46): /etc/rc.d/rc.nfsd stop | logger Apr 15 17:37:00 Tower emhttp: Spinning up all drives... Apr 15 17:37:00 Tower emhttp: shcmd (47): /usr/sbin/hdparm -S0 /dev/sdb >/dev/null Apr 15 17:37:07 Tower emhttp: shcmd (48): sync Apr 15 17:37:13 Tower emhttp: shcmd (49): umount /mnt/user >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: shcmd (50): rmdir /mnt/user >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: shcmd (51): umount /mnt/user0 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: shcmd (52): rmdir /mnt/user0 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: shcmd (53): umount /mnt/disk1 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (53): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (54): rmdir /mnt/disk1 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (54): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (55): umount /mnt/disk2 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (55): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (56): rmdir /mnt/disk2 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (56): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (57): umount /mnt/disk3 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (57): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (58): rmdir /mnt/disk3 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (58): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (59): umount /mnt/disk4 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (59): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (60): rmdir /mnt/disk4 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (60): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (61): umount /mnt/disk5 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (61): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (62): rmdir /mnt/disk5 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (62): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (63): umount /mnt/disk6 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (63): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (64): rmdir /mnt/disk6 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (64): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (65): umount /mnt/disk7 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (65): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (66): rmdir /mnt/disk7 >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (66): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (67): umount /mnt/cache >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (67): exit status: 1 Apr 15 17:37:14 Tower emhttp: shcmd (68): rmdir /mnt/cache >/dev/null 2>&1 Apr 15 17:37:14 Tower emhttp: _shcmd: shcmd (68): exit status: 1 Apr 15 17:37:14 Tower emhttp: Retry unmounting disk share(s)... Apr 15 17:37:18 Tower cache_dirs: Suspending cache_dirs for 120 seconds to allow for clean shutdown of array Apr 15 17:37:18 Tower cache_dirs: While suspended, pressing "Stop" on the unRAID management web-interface will shutdown the array Apr 15 17:37:19 Tower emhttp: shcmd (69): umount /mnt/disk1 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (69): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (70): rmdir /mnt/disk1 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (70): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (71): umount /mnt/disk2 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (71): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (72): rmdir /mnt/disk2 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (72): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (73): umount /mnt/disk3 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (73): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (74): rmdir /mnt/disk3 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (74): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (75): umount /mnt/disk4 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (75): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (76): rmdir /mnt/disk4 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (76): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (77): umount /mnt/disk5 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (77): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (78): rmdir /mnt/disk5 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (78): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (79): umount /mnt/disk6 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: shcmd (80): rmdir /mnt/disk6 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: shcmd (81): umount /mnt/disk7 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (81): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (82): rmdir /mnt/disk7 >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (82): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (83): umount /mnt/cache >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (83): exit status: 1 Apr 15 17:37:19 Tower emhttp: shcmd (84): rmdir /mnt/cache >/dev/null 2>&1 Apr 15 17:37:19 Tower emhttp: _shcmd: shcmd (84): exit status: 1 Apr 15 17:37:19 Tower emhttp: Retry unmounting disk share(s)... Apr 15 17:37:24 Tower emhttp: shcmd (85): umount /mnt/disk1 >/dev/null 2>&1 Apr 15 17:37:24 Tower emhttp: shcmd (86): rmdir /mnt/disk1 >/dev/null 2>&1 Apr 15 17:37:24 Tower emhttp: shcmd (87): umount /mnt/disk2 >/dev/null 2>&1 Apr 15 17:37:25 Tower emhttp: shcmd (88): rmdir /mnt/disk2 >/dev/null 2>&1 Apr 15 17:37:25 Tower emhttp: shcmd (89): umount /mnt/disk3 >/dev/null 2>&1 Apr 15 17:37:25 Tower emhttp: shcmd (90): rmdir /mnt/disk3 >/dev/null 2>&1 Apr 15 17:37:25 Tower emhttp: shcmd (91): umount /mnt/disk4 >/dev/null 2>&1 Apr 15 17:37:25 Tower emhttp: shcmd (92): rmdir /mnt/disk4 >/dev/null 2>&1 Apr 15 17:37:25 Tower emhttp: shcmd (93): umount /mnt/disk5 >/dev/null 2>&1 Apr 15 17:37:26 Tower emhttp: shcmd (94): rmdir /mnt/disk5 >/dev/null 2>&1 Apr 15 17:37:26 Tower emhttp: shcmd (95): umount /mnt/disk7 >/dev/null 2>&1 Apr 15 17:37:26 Tower emhttp: shcmd (96): rmdir /mnt/disk7 >/dev/null 2>&1 Apr 15 17:37:26 Tower emhttp: shcmd (97): umount /mnt/cache >/dev/null 2>&1 Apr 15 17:37:26 Tower emhttp: shcmd (98): rmdir /mnt/cache >/dev/null 2>&1 Apr 15 17:37:26 Tower emhttp: disk_temperature: ioctl (smart_enable): Input/output error Apr 15 17:37:27 Tower emhttp: shcmd (99): rm /etc/samba/smb-shares.conf >/dev/null 2>&1 Apr 15 17:37:27 Tower emhttp: shcmd (100): cp /etc/exports- /etc/exports Apr 15 17:37:27 Tower emhttp: shcmd (101): /etc/rc.d/rc.samba start | logger Apr 15 17:37:27 Tower logger: Starting Samba: /usr/sbin/nmbd -D Apr 15 17:37:27 Tower logger: /usr/sbin/smbd -D Apr 15 17:37:27 Tower emhttp: shcmd (102): /etc/rc.d/rc.nfsd start | logger Apr 15 17:37:44 Tower emhttp: disk_temperature: ioctl (smart_enable): Input/output error I then lost all connection to the server. I checked the monitor attached to the server and it looked like a kernel dump: Up until now, the server has been fairly stable but also fairly new, a month or so old... any ideas ?
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