yvv 0 Report post Posted August 10, 2010 Hi, I bought a WD20EARS and it's showing up as a 1tb drive. I tried setting the partitioning scheme to GUID instead of MBR but that didn't solve anything. I also sent an email to WD customer care but apparently they don't support Linux. Any ideas? uname -a Linux debian 2.6.32-5-amd64 #1 SMP Fri Aug 6 00:38:23 UTC 2010 x86_64 GNU/Linux smartctl smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)Copyright © 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Western Digital Caviar Green (Adv. Format) family Device Model: WDC WD20EARS-00S8B1 Firmware Version: 80.00A80 User Capacity: 1.000.227.396.608 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 8 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Tue Aug 10 14:35:16 2010 CEST 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: (43980) 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: (0x3031) 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 175 175 021 Pre-fail Always - 8225 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 - 15 194 Temperature_Celsius 0x0022 115 115 000 Old_age Always - 37 196 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 200 200 000 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. Share this post Link to post Share on other sites
Brian 157 Report post Posted August 10, 2010 Can you try it in another machine that's Windows-based? I'm sure it's related to the drive being Advanced Format (4K) under Linux. Share this post Link to post Share on other sites
yvv 0 Report post Posted August 10, 2010 Unfortunately I can't. However, from what I've read Linux should have no problem with 4k sector and other people have been able to detect all 2tb on their drives. The guys at #debian say that 4k sectors shouldn't make it show up as a 1tb disk anyway. I looked in BIOS and it shows up as a 1tb drive there as well. Share this post Link to post Share on other sites
qasdfdsaq 2 Report post Posted August 10, 2010 I see you're using a 64-bit 2.6.32 kernel, which is fairly recent and should have no problems with 4K drives. Also, the apparent capacity of 1.000.227.396.608 would seem to be exactly 1/2 of what it should be, rather than from having an artificial 1TiB limit or sector size being interpreted wrong. Can you run HDAT and check the drive's sector size/mode, as well as DCO and HPA (size limit/hidden areas)? Also run hdparm -I while you're at it and give us the output. Share this post Link to post Share on other sites
continuum 18 Report post Posted August 10, 2010 Which motherboard is this? I know some motherboards have weird issues with some drives. (such as the Asus P5Q-EM DO) Share this post Link to post Share on other sites
yvv 0 Report post Posted August 11, 2010 I have a Gigabyte GA-G33M-S2H motherboard with BIOS version F1. I noticed version F3 has this fix: "Some of 1000 GB (1TB) HDDs will be detected size error." so I downloaded it and put it on a USB flash memory to update the BIOS. However it couldn't detect the usb drive so I rebooted in order to double check the instructions. Then I noticed the 2tb drive is showing up as 2tb. Here's what I tried unsuccessfully: rebooting, formatting the drive, changing partitioning scheme from MBR to GUID back to MBR. Problem solved... by itself. Someone on community.wdc.com sent me a link to this thread which explains what the problem is and how to solve it: http://community.wdc.com/t5/Other-Internal-Drives/wdidle3-broke-my-wd10ears-hard-disk/m-p/40589#M404 Share this post Link to post Share on other sites
