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On Sun, Apr 18, 2010 at 4:16 AM, <meino.cramer@×××.de> wrote: |
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> Hi, |
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> |
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> b |
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> the Winchester Digital WD10EARS S-ATA II 300MB/s GreenPower WD Caviar Green |
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> 1TByte Harddiscs offers something which WD calls "Advanced Format" |
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> which turns out to be sectors of 4096 bytes size instead of 512 bytes. |
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> |
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> To use it, one needs a tool made by WD which only runs under windows. |
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> |
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> Or? |
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> |
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> Is this "new sector size" is something, which I can activate |
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> be using fdisk/mkfs or something included in the linux kernel |
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> since stone age and is only new to the guys at Microsoft/Winchester |
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> Digital? |
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> |
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> Can I take any advantage of that? |
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> |
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> Thank you very much for any help and advice in advance! |
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> Have a nice sunday! |
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> mcc |
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|
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Sort of none of the above. |
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|
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4K sectors are 4K sectors. It isn't something you activate. It's the |
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way the drive is made. However the drive responds to 512 byte sector |
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addresses. You can use it as you would any other drive, however... |
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|
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1) If you put your partitions on 4K boundaries the drive will be fast |
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|
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2) If you put your sectors on 512 byte boundaries the drive will work |
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but be very slow |
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|
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Either way it will work. I think #1 is better, but that's up to you. |
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|
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Simple answer about what to do? Make sure the starting address of all |
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partitions is divisible by 8, or for simplicity have every partition |
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starting address end with 3 zeros which is what some of the newer |
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Windows setup tools are doing. I know the 3 zero thing sounds like |
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you're wasting space, and you would be, but it's very small compared |
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to the size of the drive so it's what I did. |
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|
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Now, if you have NOT already purchased the drive, my suggestion is |
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that you do not, or if you insist on buying some get in touch with me. |
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I have 6 sitting right here at home that I'll happily sell to you at |
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reduced prices. ;-) |
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|
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These drives are saving power by parking the heads very quickly and my |
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experience over the last few months is that they are likely going to |
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wear out in about 18 months according to WD's spec of 300K park |
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cycles. (Check SMART data yourself) Additionally they are completely |
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unusable for any sort of RAID environment as WD removed all the TLER |
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functions from the firmware. Linux is racking up 1 cycles every 2 |
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minutes. (41476/1588) As best I can tell the drive will be out of spec |
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in about 14 months if your machine is powered on 24/7. |
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|
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gandalf ~ # smartctl -i /dev/sda |
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smartctl 5.39.1 2010-01-28 r3054 [x86_64-pc-linux-gnu] (local build) |
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Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net |
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|
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=== START OF INFORMATION SECTION === |
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Device Model: WDC WD10EARS-00Y5B1 |
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Serial Number: WD-WCAV55464493 |
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Firmware Version: 80.00A80 |
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User Capacity: 1,000,204,886,016 bytes |
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Device is: Not in smartctl database [for details use: -P showall] |
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ATA Version is: 8 |
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ATA Standard is: Exact ATA specification draft version not indicated |
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Local Time is: Sun Apr 18 08:36:44 2010 PDT |
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SMART support is: Available - device has SMART capability. |
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SMART support is: Enabled |
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|
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gandalf ~ # |
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gandalf ~ # !smart |
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smartctl -A /dev/sda |
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smartctl 5.39.1 2010-01-28 r3054 [x86_64-pc-linux-gnu] (local build) |
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Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net |
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|
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=== START OF READ SMART DATA SECTION === |
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SMART Attributes Data Structure revision number: 16 |
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Vendor Specific SMART Attributes with Thresholds: |
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ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE |
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UPDATED WHEN_FAILED RAW_VALUE |
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1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail |
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Always - 0 |
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3 Spin_Up_Time 0x0027 129 128 021 Pre-fail |
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Always - 6525 |
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4 Start_Stop_Count 0x0032 100 100 000 Old_age |
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Always - 21 |
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5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail |
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Always - 0 |
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7 Seek_Error_Rate 0x002e 200 200 000 Old_age |
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Always - 0 |
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9 Power_On_Hours 0x0032 098 098 000 Old_age |
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Always - 1588 |
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10 Spin_Retry_Count 0x0032 100 253 000 Old_age |
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Always - 0 |
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11 Calibration_Retry_Count 0x0032 100 253 000 Old_age |
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Always - 0 |
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12 Power_Cycle_Count 0x0032 100 100 000 Old_age |
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Always - 20 |
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192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age |
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Always - 5 |
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193 Load_Cycle_Count 0x0032 187 187 000 Old_age |
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Always - 41476 |
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194 Temperature_Celsius 0x0022 121 116 000 Old_age |
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Always - 26 |
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196 Reallocated_Event_Count 0x0032 200 200 000 Old_age |
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Always - 0 |
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197 Current_Pending_Sector 0x0032 200 200 000 Old_age |
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Always - 0 |
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198 Offline_Uncorrectable 0x0030 200 200 000 Old_age |
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Offline - 0 |
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199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age |
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Always - 0 |
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200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age |
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Offline - 0 |
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|
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gandalf ~ # |
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|
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|
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- Mark |
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