Dangerously high Load_Cycle_Count on my Thinkpad T61 Hitachi drive
Hi,
Prompted by another thread on this list, I decided to check my drive's
Load_Cycle_Count, and it seems that my drive is living on borrowed time:
193 Load_Cycle_Count 0x0012 031 031 000 Old_age Always - 697557
Searching the web indicates that a laptop drive is rated at most for
about 600,000 cycles, so ...
A few questions:
1) Why would it be so high?
2) What should I do to attempt to preserve whatever life it has left?
hdparm -B 254/255? Anything else?
The machine is a Thinkpad T61, the drive a Hitachi HTS722010K9SA00. I
bought the machine refurbished about a year and a half ago, and while I
obviously don't know how it was used in its first career, I believe
that my usage has been pretty normal - the machine is on and in use for
much of the day, with a fairly typical user workload. I usually
hibernate it when I won't be using it for a while.
Over the last day or so, I've been checking the load cycle count and
it's apparently gone up by 482 over about ten hours, during which time
the machine was in hibernation for about eight of them, in active use
for about half an hour, and idle the rest of the time.
Current drive APM setting is 128:
~# hdparm -B /dev/sda
/dev/sda:
APM_level = 128
Current SMART output:
~# smartctl -a /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.4.47] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Device Model: HITACHI HTS722010K9SA00
Serial Number: 080805DP0270DPGNZWPC
LU WWN Device Id: 5 000cca 53bc98b64
Firmware Version: DC2ZC75A
User Capacity: 100,030,242,816 bytes [100 GB]
Sector Size: 512 bytes logical/physical
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 3f
Local Time is: Sun Jun 2 10:50:35 2013 EDT
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: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
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: ( 645) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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: ( 39) minutes.
SCT capabilities: (0x003d) 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 0x000b 100 100 062 Pre-fail Always - 0
2 Throughput_Performance 0x0005 116 116 040 Pre-fail Offline - 3360
3 Spin_Up_Time 0x0007 253 253 033 Pre-fail Always - 0
4 Start_Stop_Count 0x0012 098 098 000 Old_age Always - 3477
5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 125 125 040 Pre-fail Offline - 30
9 Power_On_Hours 0x0012 074 074 000 Old_age Always - 11518
10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 2832
191 G-Sense_Error_Rate 0x000a 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 641007664
193 Load_Cycle_Count 0x0012 031 031 000 Old_age Always - 697557
194 Temperature_Celsius 0x0002 157 157 000 Old_age Always - 35 (Min/Max 2/52)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0
223 Load_Retry_Count 0x000a 100 100 000 Old_age Always - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 9995 -
# 2 Short offline Completed without error 00% 9995 -
# 3 Extended offline Completed without error 00% 9734 -
# 4 Short offline Completed without error 00% 9520 -
# 5 Extended offline Completed without error 00% 9511 -
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.
Celejar
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