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On Thu, May 10, 2012 at 9:20 AM, Norman Invasion |
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<invasivenorman@×××××.com> wrote: |
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> On 9 May 2012 04:47, Dale <rdalek1967@×××××.com> wrote: |
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>> Hi, |
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>> |
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>> As some know, I'm planning to buy me a LARGE hard drive to put all my |
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>> videos on, eventually. The prices are coming down now. I keep seeing |
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>> these "green" drives that are made by just about every company nowadays. |
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>> When comparing them to a non "green" drive, do they hold up as good? |
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>> Are they as dependable as a plain drive? I guess they are more |
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>> efficient and I get that but do they break quicker, more often or no |
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>> difference? |
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>> |
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>> I have noticed that they tend to spin slower and are cheaper. That much |
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>> I have figured out. Other than that, I can't see any other difference. |
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>> Data speeds seem to be about the same. |
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>> |
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> |
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> They have an ugly tendency to nod off at 6 second intervals. |
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> This runs up "193 Load_Cycle_Count" unacceptably: as many |
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> as a few hundred thousand in a year & a million cycles is |
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> getting close to the lifetime limit on most hard drives. I end |
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> up running some iteration of |
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> # hdparm -B 255 /dev/sda |
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> every boot. |
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> |
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|
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Very true about the 193 count. Here's a drive in a system that was |
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built in Jan., 2010 so it's a bit over 2 years old at this point. It's |
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on 24/7 and not rebooted except for more major updates, etc. My tests |
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say the drive spins down and starts back up every 2 minutes and has |
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been doing so for about 28 months. IIRC the 193 spec on this drive was |
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something like 300000 max with the drive currently clocking in at |
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700488. I don't see any evidence that it's going to fail but I am |
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trying to make sure it's backed up often. Being that it's gone >2x at |
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this point I will swap the drive out in the early summer no matter |
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what. This week I'll be visiting where the machine is so I'm going to |
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put a backup drive in the box to get ready. |
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|
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- Mark |
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|
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|
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gandalf ~ # smartctl -a /dev/sda |
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smartctl 5.42 2011-10-20 r3458 [x86_64-linux-3.2.12-gentoo] (local build) |
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Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net |
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|
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=== START OF INFORMATION SECTION === |
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Model Family: Western Digital Caviar Green (Adv. Format) |
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Device Model: WDC WD10EARS-00Y5B1 |
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Serial Number: WD-WCAV55464493 |
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LU WWN Device Id: 5 0014ee 2ae6b5ffe |
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Firmware Version: 80.00A80 |
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User Capacity: 1,000,204,886,016 bytes [1.00 TB] |
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Sector Size: 512 bytes logical/physical |
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Device is: In smartctl database [for details use: -P show] |
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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: Thu May 10 10:53:59 2012 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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=== START OF READ SMART DATA SECTION === |
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SMART overall-health self-assessment test result: PASSED |
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|
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General SMART Values: |
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Offline data collection status: (0x82) Offline data collection activity |
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was completed without error. |
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Auto Offline Data Collection: Enabled. |
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Self-test execution status: ( 0) The previous self-test routine completed |
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without error or no self-test has ever |
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been run. |
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Total time to complete Offline |
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data collection: (19800) seconds. |
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Offline data collection |
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capabilities: (0x7b) SMART execute Offline immediate. |
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Auto Offline data collection |
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on/off support. |
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Suspend Offline collection upon new |
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command. |
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Offline surface scan supported. |
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Self-test supported. |
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Conveyance Self-test supported. |
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Selective Self-test supported. |
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SMART capabilities: (0x0003) Saves SMART data before entering |
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power-saving mode. |
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Supports SMART auto save timer. |
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Error logging capability: (0x01) Error logging supported. |
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General Purpose Logging supported. |
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Short self-test routine |
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recommended polling time: ( 2) minutes. |
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Extended self-test routine |
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recommended polling time: ( 228) minutes. |
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Conveyance self-test routine |
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recommended polling time: ( 5) minutes. |
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SCT capabilities: (0x3031) SCT Status supported. |
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SCT Feature Control supported. |
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SCT Data Table supported. |
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|
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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 131 128 021 Pre-fail |
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Always - 6441 |
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4 Start_Stop_Count 0x0032 100 100 000 Old_age |
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Always - 65 |
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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 074 074 000 Old_age |
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Always - 19316 |
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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 - 63 |
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192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age |
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Always - 14 |
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193 Load_Cycle_Count 0x0032 001 001 000 Old_age |
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Always - 700488 |
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194 Temperature_Celsius 0x0022 120 113 000 Old_age |
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Always - 27 |
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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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SMART Error Log Version: 1 |
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No Errors Logged |
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|
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SMART Self-test log structure revision number 1 |
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Num Test_Description Status Remaining |
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LifeTime(hours) LBA_of_first_error |
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# 1 Short offline Completed without error 00% 11655 - |
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# 2 Extended offline Completed without error 00% 8797 - |
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# 3 Short offline Completed without error 00% 8794 - |
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# 4 Extended offline Completed without error 00% 1009 - |
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# 5 Extended offline Completed without error 00% 388 - |
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# 6 Short offline Completed without error 00% 376 - |
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|
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SMART Selective self-test log data structure revision number 1 |
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SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS |
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1 0 0 Not_testing |
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2 0 0 Not_testing |
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3 0 0 Not_testing |
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4 0 0 Not_testing |
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5 0 0 Not_testing |
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Selective self-test flags (0x0): |
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After scanning selected spans, do NOT read-scan remainder of disk. |
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If Selective self-test is pending on power-up, resume after 0 minute delay. |
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|
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gandalf ~ # |
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