December 17, 201015 yr i've read that WD 20ears harddisks have problems with going to sleep many times. This causes a lot head parks, which results in dying. Someone gave me a tip to put this commando somewhere: /sbin/hdparm -S 0 /dev/sdd (th s 0 makes them not going into sleep every couple of minutes) is this the case with unraid too?
December 17, 201015 yr http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=5357 Disable Advanced power management using standard ATA command (Uses more power as turns off all low power modes but results in no load/unload cycles) Linux users add following (hdparm -B 255 /dev/sdX where X is your hard drive device). ATA users can disable APM usually controlled via BIOS and/or OS.
December 18, 201015 yr Author http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=5357 Disable Advanced power management using standard ATA command (Uses more power as turns off all low power modes but results in no load/unload cycles) Linux users add following (hdparm -B 255 /dev/sdX where X is your hard drive device). ATA users can disable APM usually controlled via BIOS and/or OS. this is a bit of chinese for me, so what should i do?
December 18, 201015 yr -S doesnt exactly stop it, however it slows it to about 8/hour from what my drives are showing other people seem to be running -B 255 which disables APM for the drive
December 18, 201015 yr Author so all people here using wd20ears, know of this? and actually set the APM to off? by adding hdparm -B 255 /dev/sdX where X is your hard drive device? Doesnt this also mean eleminating the power savings?
December 18, 201015 yr -B doesnt work with the WD EARS drives, -S0 doesn't disable it totally, but seems like the best way to slow it down
December 18, 201015 yr Author -B doesnt work with the WD EARS drives, -S0 doesn't disable it totally, but seems like the best way to slow it down so all people do it here? i'm beginning to doubt buying these drives first the jumper thing now this
December 18, 201015 yr I don't. Mine looks fine: 4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1094 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963 10 Spin_Retry_Count 0x0032 100 100 000 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 - 43 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 27 193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 3031
December 18, 201015 yr I don't have any EARS but my EADS are perfectly fine without any additional tweaking. 4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1186 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 084 084 000 Old_age Always - 12312 10 Spin_Retry_Count 0x0032 100 100 000 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 - 65 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 10 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 1165 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 920 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 084 084 000 Old_age Always - 12213 10 Spin_Retry_Count 0x0032 100 100 000 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 - 44 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 7 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 895 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 936 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 084 084 000 Old_age Always - 12297 10 Spin_Retry_Count 0x0032 100 100 000 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 - 51 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 6 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 918
December 18, 201015 yr You can disable head parking on the EARS drive. I have three of them and I've disabled it on all of them. Google WDIDLE3.exe and you should find lots of info. I used the wdidle3 /s0 command to disable the timer on my drives. Other users have reported success using wdidle3 /d. On my drives the /d command just set the timer to a really large value but /s0 actually disabled it. You can check the timer value by using wdidle3 /r.
December 18, 201015 yr do not use wdidle3. people on other forums have contacted WD about this utility and been told using it would void the warranty on their drives
December 18, 201015 yr I would not recommend this until after you observe the problem with a particular disk.
December 18, 201015 yr do not use wdidle3. people on other forums have contacted WD about this utility and been told using it would void the warranty on their drives No offense, but the voiding of the warranty statement is inaccurate. Take a look here at solution #3: http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=5357 In addition, there are posts on the official WDC forum by a moderator stating clearly that he spoke with WDC techs and confirmed it can be run on an EARS drive and it will not void the warranty (don't have a link for that, but I'm sure a search can find it). I RMA'd two of my WD20EARS drives because of super high load/unload counts. Could it have been mechanically fine? According to WDC, it can reach into the millions without issue. Personally, I think that's adding a lot of mechanical wear on the drives. I ran wdidle on all my EARS drives, changing the setting from 8 seconds to 5 minutes. Everything working just fine here, and though I may sacrifice a bit of power savings, I think the longevity of the drives are worth it.
December 18, 201015 yr There is no evidence that parking an EARS drive causes anymore wear than reading or writing to the drive. Millions, billions or even trillions is not out of reason.
December 18, 201015 yr Author I don't. Mine looks fine: 4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1094 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963 10 Spin_Retry_Count 0x0032 100 100 000 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 - 43 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 27 193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 3031 3031 counts? how long since its been running
December 18, 201015 yr I don't. Mine looks fine: 4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1094 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963 10 Spin_Retry_Count 0x0032 100 100 000 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 - 43 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 27 193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 3031 3031 counts? how long since its been running 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963
December 18, 201015 yr Author I don't. Mine looks fine: 4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1094 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963 10 Spin_Retry_Count 0x0032 100 100 000 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 - 43 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 27 193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 3031 3031 counts? how long since its been running 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963 thats a lot in 9 hours no?
December 18, 201015 yr 3031 counts? how long since its been running 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 2963 thats a lot in 9 hours no? That is attribute number 9. The disk has been spinning for 2963 hours.
December 18, 201015 yr ok but can someone answer to my question on top of this page (2)? Spinning down once an hour is probably not the worst thing in the world. The drives are probably rated for 1,000,000 parks of the heads before SMART considers mechanical wear to be over the norm for that parameter. At one per hour that might get you into the next century. At one point, WD had the heads parking every 8 seconds. They called it "Intellipark" (or something like that) Basically it was an attempt to be more "green" than their competition. At one park cycle per 8 seconds I think it hits over a million park cycles in less than 100 days.
December 18, 201015 yr I'm seeing this issue on my Caviar Black (Parity drive): ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 051 046 021 Pre-fail Always - 14475 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 661 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 097 097 000 Old_age Always - 2271 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 102 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 68 193 Load_Cycle_Count 0x0032 189 189 000 Old_age Always - 33092 194 Temperature_Celsius 0x0022 121 106 000 Old_age Always - 31 196 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 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 12 200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 1 hdparm -B 255 /dev/sdf That seems to have stopped the constant head parking. No issues on my EARS drive, but then I just put it in a few days ago.
December 18, 201015 yr Author I'm seeing this issue on my Caviar Black (Parity drive): ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 051 046 021 Pre-fail Always - 14475 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 661 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 097 097 000 Old_age Always - 2271 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 102 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 68 193 Load_Cycle_Count 0x0032 189 189 000 Old_age Always - 33092 194 Temperature_Celsius 0x0022 121 106 000 Old_age Always - 31 196 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 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 12 200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 1 hdparm -B 255 /dev/sdf That seems to have stopped the constant head parking. No issues on my EARS drive, but then I just put it in a few days ago. it says 2271 hours running and 33092 load cycle count thats a lot no? so you used hdparm -B 255 /dev/sdf?
December 18, 201015 yr it says 2271 hours running and 33092 load cycle count thats a lot no? so you used hdparm -B 255 /dev/sdf? To me it seems to be excessive. 10x more by comparison of other values I've seen in this thread. After using hdparm (and placed in my go script) as above, it's at 33095. So not moving by much now.
December 18, 201015 yr do not use wdidle3. people on other forums have contacted WD about this utility and been told using it would void the warranty on their drives There is nothing like some good hearsay to spice up the post.
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