March 14, 201115 yr Apologies if this is in the wrong place...but I did read the FAQ and Troubleshooting sections and couldn't really find a specific answer... Hi All, I just started with a 4.7 "free" unRAID OS with a single BRAND NEW UNOPENED 2TB WD20EARS drive and a single Maxtor 120GB SATA drive i had lying around. The Maxtor finished pre-clearing no probs and is still recognised by the BIOS of the PC. The WD20EARS was recognised by the BIOS and unRAID started the pre-clearing. All the FAQs said it didn't need the 7/8 jumper so I didn't use it, and should use the "-A" flag at the preclear, so I did that too. Everything seemed fine, and the FAQ said it'd be 20+ hours so I started it then went to bed. Got this emailed to me (i set the pre-clear to email me) and it says "success" but right now the PC BIOS doesn't even recognise the WD20EARS so I can't even try to troubleshoot it with unRAID! Is it dead??? What can I do? Please help! Please let me know if you need any more info! Here's the pre-clear email I got... ========================================================================1.7 == invoked as: ./preclear_disk.sh -m [email protected] -A /dev/sda == WDC WD20EARS-00MVWB0 WD-WMAZA0512345 == Disk /dev/sda has been successfully precleared == with a starting sector of 64 == Ran 1 cycle == == Using :Read block size = 8225280 Bytes == Last Cycle's Pre Read Time : ( MB/s) == Last Cycle's Zeroing time : ( MB/s) == Last Cycle's Post Read Time : ( MB/s) == Last Cycle's Total Time : == == Total Elapsed Time 6:54:26 == == Disk Start Temperature: 33C == == Current == ============================================================================ ============================================================================ ============================================================================ == == S.M.A.R.T Initial Report for /dev/sda == Disk: /dev/sda smartctl 5.39.1 2010-01-28 r3054 [i486-slackware-linux-gnu] (local build) Copyright © 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Device Model: WDC WD20EARS-00MVWB0 Serial Number: WD-WMAZA0512345 Firmware Version: 50.0AB50 User Capacity: 2,000,398,934,016 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 8 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Sun Mar 13 21:54:58 2011 EST 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: (0x80) Offline data collection activity was never started. Auto Offline Data Collection: Enabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: (36600) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. 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: ( 2) minutes. Extended self-test routine recommended polling time: ( 255) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x3035) SCT Status 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 0x002f 100 253 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 167 167 021 Pre-fail Always - 6633 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 10 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 0 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 8 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 7 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 10 194 Temperature_Celsius 0x0022 117 117 000 Old_age Always - 33 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 253 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t] 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. == ============================================================================ ============================================================================ == == S.M.A.R.T Final Report for /dev/sda == Disk: /dev/sda smartctl 5.39.1 2010-01-28 r3054 [i486-slackware-linux-gnu] (local build) Copyright © 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net Smartctl: Device Read Identity Failed (not an ATA/ATAPI device) A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options. == ============================================================================
March 14, 201115 yr Does not look like a success if the final smart report cannot be taken. I'd use preclear_disk.sh -t /dev/sda to see if there is a valid pre-clear signature.
March 14, 201115 yr Author Does not look like a success if the final smart report cannot be taken. I'd use preclear_disk.sh -t /dev/sda to see if there is a valid pre-clear signature. Hi thanks for the reply, but I can't actually do this because the BIOS doesn't see the drive anymore so neither does unRAID! I've even taken out the WD20EARS and put it into a USB enclosure to see if a different computer would recognise it (and ask me to format) but it won't...so I don't think the drive is actually alive anymore... Any other ideas?
March 14, 201115 yr Does not look like a success if the final smart report cannot be taken. I'd use preclear_disk.sh -t /dev/sda to see if there is a valid pre-clear signature. Hi thanks for the reply, but I can't actually do this because the BIOS doesn't see the drive anymore so neither does unRAID! I've even taken out the WD20EARS and put it into a USB enclosure to see if a different computer would recognise it (and ask me to format) but it won't...so I don't think the drive is actually alive anymore... Any other ideas? RMA it?
March 16, 201115 yr Author Thanks Joe! I gave it a few more attempts in different PC's and different USB enclosures and it all cases it's like it just won't want to start up! Like it's not receiving power...it's so weird because it DID work up until I tried to pre-clear it. Are there no known issues pre-clearing a WD20EARS without the 7/8 jumper on unRAID 4.7??? -- In any case after many hoops to jump, I've finally RMA'd the drive and will be sending it back to Singapore for replacement. (I'm in Australia if that matters)
March 16, 201115 yr Thanks Joe! I gave it a few more attempts in different PC's and different USB enclosures and it all cases it's like it just won't want to start up! Like it's not receiving power...it's so weird because it DID work up until I tried to pre-clear it. Are there no known issues pre-clearing a WD20EARS without the 7/8 jumper on unRAID 4.7??? -- In any case after many hoops to jump, I've finally RMA'd the drive and will be sending it back to Singapore for replacement. (I'm in Australia if that matters) It just died during its initial few hours of life. One of the benefits of pre-clearing a drive is that it is a burn-in period for the drive. Would you rather it have died after you filled it with your files? If it stopped responding, and it does not respond in any of the enclosures/PCs you try it in, consider it dead. I've got one that died in its initial pre-clear too. I've got to send it in as an RMA too. Joe L.
March 16, 201115 yr The smart report posted shows 0 power on hours. Something was definitely wrong with it.
March 16, 201115 yr Big title on Morning Star: PRECLEAR SCRIPT KILLS DRIVES ;D ;D Actually, I'd say that Microsoft Operating System kill drives. I'll bet more drives die when running Microsoft products than in any other use. ;)
March 16, 201115 yr I'm starting to think these EARS drives are the new Hitachi "Deathstar" drives. I'm on my third one in less than a year. I have 2 EADS and 1 EACS that have been flawless for 2+ years now.
March 16, 201115 yr I believe the problem has to do with the head parking power saving feature on the drive. The heads on these drives by default are set to park after 8 seconds. This creates a lot of load/unload cycles on the drive when running things such as unRaid. The very first thing I did after installing my two 2TB EARS drives was use the wdidle3.exe utility to completely disable the head parking power saving feature. I know that doing that will increase the power usage on the drives but it should also extend the life of the drive.
March 17, 201115 yr I believe the problem has to do with the head parking power saving feature on the drive. The heads on these drives by default are set to park after 8 seconds. This creates a lot of load/unload cycles on the drive when running things such as unRaid. The very first thing I did after installing my two 2TB EARS drives was use the wdidle3.exe utility to completely disable the head parking power saving feature. I know that doing that will increase the power usage on the drives but it should also extend the life of the drive. Is that something I can run on the drive once it's already been formatted and added to the unRAID array?
March 18, 201115 yr As far as I know, yes. My understanding is that it just changes the settings on the drive itself for head parking. Be warned, it will try to make the setting changes to ALL hard disks in your system. It is set to ignore non Western Digital drives and some older drives do not support the command, so the change will fail. It won't harm the disk but just something to be aware of before playing with the tool.
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