after some googling it's been suggested that it's either a hard drive, the sata controller or the sata cables. how do i go about diagnosing and fixing the problem, any suggestions or guidance would be appreciated. shadrock I've had this problem before. IIRC, you can match up the ata17.00 with what drive it's talking about by looking at your kernel boot messages. The first thing I would do is switch out the SATA cable and see if the problem persists. If that doesn't work, run a scan of the drive using the manufacturers scan program.

hi everyone these are the following tests i've tried and the results journalctl -f | grep ata Jan 13 12:37:13 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:37:13 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:37:13 maybel kernel: ata17.00: cmd 25/00:00:00:24:7d/00:07:1a:00:00/e0 tag 13 dma 917504 in Jan 13 12:37:13 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:37:13 maybel kernel: ata17: hard resetting link Jan 13 12:37:13 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:37:13 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:37:13 maybel kernel: ata17: EH complete Jan 13 12:37:45 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:37:45 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:37:45 maybel kernel: ata17.00: cmd 25/00:00:00:d9:7d/00:07:1a:00:00/e0 tag 25 dma 917504 in Jan 13 12:37:45 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:37:45 maybel kernel: ata17: hard resetting link Jan 13 12:37:46 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:37:46 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:37:46 maybel kernel: ata17: EH complete Jan 13 12:38:19 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:38:19 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:38:19 maybel kernel: ata17.00: cmd 25/00:00:80:d6:81/00:06:1a:00:00/e0 tag 1 dma 786432 in Jan 13 12:38:19 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:38:19 maybel kernel: ata17: hard resetting link Jan 13 12:38:20 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:38:20 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:38:20 maybel kernel: ata17: EH complete Jan 13 12:38:52 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:38:52 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:38:52 maybel kernel: ata17.00: cmd 25/00:80:80:d1:82/00:05:1a:00:00/e0 tag 28 dma 720896 in Jan 13 12:38:52 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:38:52 maybel kernel: ata17: hard resetting link Jan 13 12:38:52 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:38:52 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:38:52 maybel kernel: ata17: EH complete Jan 13 12:39:24 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:39:24 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:39:24 maybel kernel: ata17.00: cmd 25/00:00:00:9d:84/00:05:1a:00:00/e0 tag 1 dma 655360 in Jan 13 12:39:24 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:39:24 maybel kernel: ata17: hard resetting link Jan 13 12:39:25 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:39:25 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:39:25 maybel kernel: ata17: EH complete Jan 13 12:39:57 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:39:57 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:39:57 maybel kernel: ata17.00: cmd 25/00:00:80:b8:85/00:05:1a:00:00/e0 tag 6 dma 655360 in Jan 13 12:39:57 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:39:57 maybel kernel: ata17: hard resetting link Jan 13 12:39:57 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:39:57 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:39:57 maybel kernel: ata17: EH complete Jan 13 12:40:29 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:40:29 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:40:29 maybel kernel: ata17.00: cmd 25/00:80:80:cd:85/00:05:1a:00:00/e0 tag 16 dma 720896 in Jan 13 12:40:29 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:40:29 maybel kernel: ata17: hard resetting link Jan 13 12:40:30 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:40:30 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:40:30 maybel kernel: ata17: EH complete Jan 13 12:41:02 maybel kernel: ata17.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Jan 13 12:41:02 maybel kernel: ata17.00: failed command: READ DMA EXT Jan 13 12:41:02 maybel kernel: ata17.00: cmd 25/00:80:80:f2:85/00:05:1a:00:00/e0 tag 16 dma 720896 in Jan 13 12:41:02 maybel kernel: ata17.00: status: { DRDY } Jan 13 12:41:02 maybel kernel: ata17: hard resetting link Jan 13 12:41:02 maybel kernel: ata17: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Jan 13 12:41:02 maybel kernel: ata17.00: configured for UDMA/33 Jan 13 12:41:02 maybel kernel: ata17: EH complete ^C ======================================================================================================= [alarm@maybel ~]$ ls -l /sys/block/ | grep sd. lrwxrwxrwx 1 root root 0 Jan 9 14:21 sda -> ../devices/pci0000:00/0000:00:05.0/ata1/host0/target0:0:0/0:0:0:0/block/sda lrwxrwxrwx 1 root root 0 Jan 9 14:26 sdb -> ../devices/pci0000:00/0000:00:0c.0/0000:02:00.0/ata13/host12/target12:0:0/12:0:0:0/block/sdb lrwxrwxrwx 1 root root 0 Jan 9 14:26 sdc -> ../devices/pci0000:00/0000:00:0c.0/0000:02:00.0/ata14/host13/target13:0:0/13:0:0:0/block/sdc lrwxrwxrwx 1 root root 0 Jan 9 14:26 sdd -> ../devices/pci0000:00/0000:00:0c.0/0000:02:00.0/ata15/host14/target14:0:0/14:0:0:0/block/sdd lrwxrwxrwx 1 root root 0 Jan 9 14:26 sde -> ../devices/pci0000:00/0000:00:0c.0/0000:02:00.0/ata16/host15/target15:0:0/15:0:0:0/block/sde lrwxrwxrwx 1 root root 0 Jan 9 14:26 sdf -> ../devices/pci0000:00/0000:00:0d.0/0000:03:00.0/ata17/host16/target16:0:0/16:0:0:0/block/sdf lrwxrwxrwx 1 root root 0 Jan 9 14:26 sdg -> ../devices/pci0000:00/0000:00:0d.0/0000:03:00.0/ata18/host17/target17:0:0/17:0:0:0/block/sdg lrwxrwxrwx 1 root root 0 Jan 10 02:43 sdh -> ../devices/pci0000:00/0000:00:02.1/usb1/1-6/1-6:1.0/host20/target20:0:0/20:0:0:0/block/sdh ======================================================================================================= sudo smartctl -i /dev/sdf smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.8.13-1-ARCH] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Device Model: HITACHI HUA722010ALA330 Serial Number: N136GXML LU WWN Device Id: 5 000cca 39ced38c2 Firmware Version: JP4ONA00 User Capacity: 1,000,204,886,016 bytes [1.00 TB] Sector Size: 512 bytes logical/physical Rotation Rate: 7200 rpm Form Factor: 3.5 inches Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ATA8-ACS T13/1699-D revision 4 SATA Version is: SATA 2.6, 1.5 Gb/s Local Time is: Fri Jan 13 12:59:51 2017 GMT SMART support is: Available - device has SMART capability. SMART support is: Enabled ======================================================================================================= sudo smartctl -t short /dev/sdf smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.8.13-1-ARCH] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION === Sending command: "Execute SMART Short self-test routine immediately in off-line mode". Drive command "Execute SMART Short self-test routine immediately in off-line mode" successful. Testing has begun. Please wait 1 minutes for test to complete. Test will complete after Fri Jan 13 13:31:48 2017 Use smartctl -X to abort test. ======================================================================================================= sudo smartctl -a /dev/sdf smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.8.13-1-ARCH] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Device Model: HITACHI HUA722010ALA330 Serial Number: N136GXML LU WWN Device Id: 5 000cca 39ced38c2 Firmware Version: JP4ONA00 User Capacity: 1,000,204,886,016 bytes [1.00 TB] Sector Size: 512 bytes logical/physical Rotation Rate: 7200 rpm Form Factor: 3.5 inches Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ATA8-ACS T13/1699-D revision 4 SATA Version is: SATA 2.6, 1.5 Gb/s Local Time is: Fri Jan 13 13:34:00 2017 GMT SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x85) Offline data collection activity was aborted by an interrupting command from host. Auto Offline Data Collection: Enabled. Self-test execution status: ( 41) The self-test routine was interrupted by the host with a hard or soft reset. Total time to complete Offline data collection: ( 9929) seconds. Offline data collection capabilities: (0x5b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 1) minutes. Extended self-test routine recommended polling time: ( 166) minutes. SCT capabilities: (0x003d) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 016 Pre-fail Always - 0 2 Throughput_Performance 0x0005 137 137 054 Pre-fail Offline - 91 3 Spin_Up_Time 0x0007 130 130 024 Pre-fail Always - 278 (Average 305) 4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 69 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0 7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0 8 Seek_Time_Performance 0x0005 138 138 020 Pre-fail Offline - 31 9 Power_On_Hours 0x0012 099 099 000 Old_age Always - 10782 10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 68 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 123 193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 123 194 Temperature_Celsius 0x0002 193 193 000 Old_age Always - 31 (Min/Max 12/46) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0 SMART Error Log Version: 0 No Errors Logged SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Interrupted (host reset) 90% 10782 - # 2 Short offline Interrupted (host reset) 90% 10776 - # 3 Short offline Interrupted (host reset) 90% 10752 - # 4 Short offline Interrupted (host reset) 90% 10728 - # 5 Short offline Completed without error 00% 10703 - # 6 Short offline Interrupted (host reset) 90% 10656 - # 7 Short offline Interrupted (host reset) 90% 10632 - # 8 Extended offline Interrupted (host reset) 90% 10628 - # 9 Short offline Interrupted (host reset) 90% 10608 - #10 Short offline Interrupted (host reset) 90% 10584 - #11 Short offline Interrupted (host reset) 90% 10560 - #12 Short offline Interrupted (host reset) 90% 10537 - #13 Short offline Interrupted (host reset) 90% 10513 - #14 Short offline Interrupted (host reset) 90% 10489 - #15 Short offline Interrupted (host reset) 90% 10465 - #16 Extended offline Interrupted (host reset) 90% 10461 - #17 Short offline Interrupted (host reset) 90% 10441 - #18 Short offline Interrupted (host reset) 90% 10417 - #19 Short offline Interrupted (host reset) 90% 10393 - #20 Short offline Completed without error 00% 10368 - #21 Short offline Completed without error 00% 10344 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. lspci | grep SATA 00:05.0 IDE interface: NVIDIA Corporation MCP55 SATA Controller (rev a3) 00:05.1 IDE interface: NVIDIA Corporation MCP55 SATA Controller (rev a3) 00:05.2 IDE interface: NVIDIA Corporation MCP55 SATA Controller (rev a3) 02:00.0 SATA controller: Marvell Technology Group Ltd. Device 9215 (rev 11) 03:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) 03:00.1 IDE interface: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) 04:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) 04:00.1 IDE interface: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) ======================================================================================================= sudo lshw -c storage *-usb description: Mass storage device product: AS2105 vendor: ASMedia physical id: 6 bus info: usb@1:6 version: 0.01 serial: WD-WCC4N5AHPU2D capabilities: usb-2.10 scsi configuration: driver=usb-storage speed=480Mbit/s *-ide:0 description: IDE interface product: MCP55 IDE vendor: NVIDIA Corporation physical id: 7 bus info: pci@0000:00:04.0 version: a1 width: 32 bits clock: 66MHz capabilities: ide pm bus_master cap_list configuration: driver=pata_amd latency=0 maxlatency=1 mingnt=3 resources: irq:0 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:f000(size=16) *-ide:1 description: IDE interface product: MCP55 SATA Controller vendor: NVIDIA Corporation physical id: 5 bus info: pci@0000:00:05.0 version: a3 width: 32 bits clock: 66MHz capabilities: ide pm msi ht bus_master cap_list configuration: driver=sata_nv latency=0 maxlatency=1 mingnt=3 resources: irq:21 ioport:9f0(size=8) ioport:bf0(size=4) ioport:970(size=8) ioport:b70(size=4) ioport:dc00(size=16) memory:fe02d000-fe02dfff *-ide:2 description: IDE interface product: MCP55 SATA Controller vendor: NVIDIA Corporation physical id: 5.1 bus info: pci@0000:00:05.1 version: a3 width: 32 bits clock: 66MHz capabilities: ide pm msi ht bus_master cap_list configuration: driver=sata_nv latency=0 maxlatency=1 mingnt=3 resources: irq:20 ioport:9e0(size=8) ioport:be0(size=4) ioport:960(size=8) ioport:b60(size=4) ioport:c800(size=16) memory:fe02c000-fe02cfff *-ide:3 description: IDE interface product: MCP55 SATA Controller vendor: NVIDIA Corporation physical id: 5.2 bus info: pci@0000:00:05.2 version: a3 width: 32 bits clock: 66MHz capabilities: ide pm msi ht bus_master cap_list configuration: driver=sata_nv latency=0 maxlatency=1 mingnt=3 resources: irq:23 ioport:c400(size=8) ioport:c000(size=4) ioport:bc00(size=8) ioport:b800(size=4) ioport:b400(size=16) memory:fe02b000-fe02bfff *-storage description: SATA controller product: Marvell Technology Group Ltd. vendor: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:02:00.0 version: 11 width: 32 bits clock: 33MHz capabilities: storage pm msi pciexpress ahci_1.0 bus_master cap_list rom configuration: driver=ahci latency=0 resources: irq:27 ioport:9c00(size=8) ioport:9800(size=4) ioport:9400(size=8) ioport:9000(size=4) ioport:8c00(size=32) memory:fdeff000-fdeff7ff memory:fdee0000-fdeeffff *-storage description: SATA controller product: JMB363 SATA/IDE Controller vendor: JMicron Technology Corp. physical id: 0 bus info: pci@0000:03:00.0 version: 03 width: 32 bits clock: 33MHz capabilities: storage pm pciexpress ahci_1.0 bus_master cap_list rom configuration: driver=ahci latency=0 resources: irq:16 memory:fddfe000-fddfffff memory:fdde0000-fddeffff *-ide description: IDE interface product: JMB363 SATA/IDE Controller vendor: JMicron Technology Corp. physical id: 0.1 bus info: pci@0000:03:00.1 version: 03 width: 32 bits clock: 33MHz capabilities: ide pm bus_master cap_list configuration: driver=pata_jmicron latency=0 resources: irq:16 ioport:7c00(size=8) ioport:7800(size=4) ioport:7400(size=8) ioport:7000(size=4) ioport:6c00(size=16) *-storage description: SATA controller product: JMB363 SATA/IDE Controller vendor: JMicron Technology Corp. physical id: 0 bus info: pci@0000:04:00.0 version: 03 width: 32 bits clock: 33MHz capabilities: storage pm pciexpress ahci_1.0 bus_master cap_list rom configuration: driver=ahci latency=0 resources: irq:16 memory:fdcfe000-fdcfffff memory:fdce0000-fdceffff *-ide description: IDE interface product: JMB363 SATA/IDE Controller vendor: JMicron Technology Corp. physical id: 0.1 bus info: pci@0000:04:00.1 version: 03 width: 32 bits clock: 33MHz capabilities: ide pm bus_master cap_list configuration: driver=pata_jmicron latency=0 resources: irq:16 ioport:5c00(size=8) ioport:5800(size=4) ioport:5400(size=8) ioport:5000(size=4) ioport:4c00(size=16) *-scsi physical id: 1 bus info: scsi@20 logical name: scsi20 capabilities: scsi-host configuration: driver=usb-storage ======================================================================================================= /dev/sdf is connected to ata17 on the 03.00 controller has the problems /dev/sdg connected to ata18 on the same controller is fine /dev/sdf exibits a long delay when getting the report from smartctl -a and frequent interurpted smart tests i will try a new cable later and report back. thanks shadrock