WD green Load Cycle Count, is it a problem or not?
Posted: 28 Aug 2014 21:00
Hi Community,
I just disassembled a Buffalo NAS (Linkstation Duo LS-WXL) from our little company.
It ran almost 4 years without any problems 24/7 and was after installation just turned off once for a firmware update.
To my surprise it contained WD Greens WD10-EADS. (I also had a Buffalo once which was equipped with Seagates).
As said, the disks are still healthy and we never encountered an error, but I was a little shocked about the LCC value.
Here we go:
4.377.523 load cycles is pretty impressive, as the drives are only spec'd for 300.000 
http://wdc.com/en/library/sata/2879-701229.pdf
Privately I always use wdidle to disable this excessive headparking, but here I missed it.
So either the drives are much tougher than expected or maybe I was jst lucky.
Cheers,
Crowi
I just disassembled a Buffalo NAS (Linkstation Duo LS-WXL) from our little company.
It ran almost 4 years without any problems 24/7 and was after installation just turned off once for a firmware update.
To my surprise it contained WD Greens WD10-EADS. (I also had a Buffalo once which was equipped with Seagates).
As said, the disks are still healthy and we never encountered an error, but I was a little shocked about the LCC value.
Here we go:
Code: Select all
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-29-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green
Device Model: WDC WD10EADS-00M2B0
Serial Number: WD-XXXXXXXXXXXXX
LU WWN Device Id: 5 0014ee 2af3b691b
Firmware Version: 01.00A01
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Wed Aug 27 23:03:16 2014 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
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 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 208 194 021 Pre-fail Always - 5600
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 32
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 055 055 000 Old_age Always - 33501
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 - 30
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 29
193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 4377523
194 Temperature_Celsius 0x0022 111 102 000 Old_age Always - 36
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 - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0
http://wdc.com/en/library/sata/2879-701229.pdf
Privately I always use wdidle to disable this excessive headparking, but here I missed it.
So either the drives are much tougher than expected or maybe I was jst lucky.
Cheers,
Crowi
