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Oct 15, 2013Virtuoso
WD Red drives park their heads like WD Green drives?
So I checked the SMART stats on my new 4TB Red drive (WD40EFRX) today. Imagine my surprise when I discovered that in only 249 power-on hours it has already experienced 36820 load/unload cycles!
Meanwhile, the 4TB Seagate drive (ST4000VN000) in that NAS, with the same number of power-on hours, has a load cycle count of... 2.
36820 load cycles in 249 hours is one load cycle every 24 seconds or so. According to Western Digital's marketing "datasheet", the drive is rated for 600K cycles; at this rate, my drive will reach that 600K threshold in only about another six months.
Is anyone else seeing this sort of crazy green-drive head parking behavior from WD Red drives?
Meanwhile, the 4TB Seagate drive (ST4000VN000) in that NAS, with the same number of power-on hours, has a load cycle count of... 2.
36820 load cycles in 249 hours is one load cycle every 24 seconds or so. According to Western Digital's marketing "datasheet", the drive is rated for 600K cycles; at this rate, my drive will reach that 600K threshold in only about another six months.
Is anyone else seeing this sort of crazy green-drive head parking behavior from WD Red drives?
68 Replies
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- portucaleAspirantGood news everyone!!!
I just bought 2 WD30EFRX-68EUZN0 and after reading the reported problem because of LLC 8 seconds, i decided to check the default disk values.
CONGRATULATIONS TO YOU ALL!
WD changed the value from 8 to 300 seconds because of YOUR CLAIMS, giving you reason!
(just to mention that the disk date is january 2014)
Entering in ssh ReadyNAS102 i run ....root@HOME_NAS:/# hdparm -J /dev/sdb
/dev/sdb:
wdidle3 = 300 secs (or 13.8 secs for older drives)
et voilá
if someone want's more info's about my disks, fill free to ask! it's possible that other value have been changed...
Meanwhile here is the result of running smartctl -a /dev/sdaroot@HOME_NAS:/# smartctl -a /dev/sda
smartctl 6.1 2013-03-16 r3800 [armv7l-linux-3.0.101.RN_ARM.1] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red (AF)
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: ???????
LU WWN Device Id: ????????
Firmware Version: 80.00A80
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 1.5 Gb/s)
Local Time is: Tue Mar 11 22:25:41 2014 WET
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: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
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: (44220) 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: ( 443) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x703d) SCT Status supported.
SCT Error Recovery Control 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 100 253 021 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 1
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 - 1
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 0
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 121 121 000 Old_age Always - 29
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. - letsgowithbobAspirantI just purchased the WD red 4TB drives, and then found this thread. I was terrified I had bought the wrong drives, and that these WD red's would not last very long. I had two Seagate Barracuda 3TB drives fail on me at 9, and 10 months respectively.
I looked at all the fixes presented so far, but wanted to give the drives a chance with no modifications. My drive has been in my Netgear NAS ultra 2 for 24 hours now with an LCC count of 0. I am getting this information from the smart button on the drive
Model: WDC WD40EFRX-68WT0N0
Serial: WD-WCC4E1126755
Firmware: 80.00A80
SMART Attribute
Raw Read Error Rate 0
Spin Up Time 0
Start Stop Count 2
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 27
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 2
Power-Off Retract Count 1
Load Cycle Count 0
Temperature Celsius 42
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0
ATA Error Count 0
I believe this means that my LCC is not being affected as in previous drives, Can someone let me know. Is there a more in depth test I should run to verify these results? - StephenBGuru - Experienced UserSince your load cycle count is zero, you are fine.
- shedzAspirantI've just purchased a readynas 312 and 2 x 3TB WD red drives. Would you like me to test idle times (load cycles)? Would have to figure out how to do this though.
- StephenBGuru - Experienced UserAll you need to do is look at the SMART stats. Download the logs, and then download them again a day later, and compare the load cycle counts in disk_info.log
But letsgowithbob should be fine - he'd have seen much higher counts if he had installed drives which had the too-short threshold. - tony359ApprenticeHi there,
running idle3ctl on my NAS gives the following result for both my REDsIdle3 timer set to 138 (0x8a)
I'm just curious, since my load count is 7 after 29 hours, but what does 138 means? - StephenBGuru - Experienced UserI believe it means the head parking timer is set to 300 seconds on those drives. That is based on the info here: http://idle3-tools.sourceforge.net/
129 -> 30 seconds
130 -> 60 seconds
...
138 -> 300 seconds - tony359ApprenticeCool, thanks, I did not reach the end of the page :)
- Reading this articel, is it save to buy the 4 TB version WD for the ultra 2 or is it better to buy another disk ?
- StephenBGuru - Experienced User
It's not on the HCL, so netgear will likely deny support.Supercows wrote: Reading this articel, is it save to buy the 4 TB version WD for the ultra 2 or is it better to buy another disk ?
However, it will work. You should check the load-cycle counts after installation, and if they climb you can reset them with the WDC software tool. That is easiest if you temporarily connect the drive to a windows PC.
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