Re: Very slow writing to SATA disk
From: Mikhail Teterin (mi+mx_at_aldan.algebra.com)
Date: 10/28/05
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To: Søren Schmidt <sos@freebsd.org> Date: Fri, 28 Oct 2005 17:45:42 -0400
> Indeed, 55C is way to high for 24/7 usage, and it might be that the Â
> drive is choking on it and barely is able to compensate..
The reads are pretty quick... I'd like to be able to spin it down, but
ataidle is broken :-(
> What does SMART say ? any unusual like high correction rates or Â
> anything ?
% atacontrol ad8
Protocol Serial ATA v1.0
Serial ATA II
device model HDS725050KLA360
serial number KRVN02ZAG1SV7C
firmware revision K2AOA11A
cylinders 16383
heads 16
sectors/track 63
lba supported 268435455 sectors
lba48 supported 976773168 sectors
dma supported
overlap not supported
Feature Support Enable Value Vendor
write cache yes yes
read ahead yes yes
Native Command Queuing (NCQ) yes - 31/0x1F
Tagged Command Queuing (TCQ) no no 31/0x1F
SMART yes yes
microcode download yes yes
security yes no
power management yes yes
advanced power management yes no 0/0x00
automatic acoustic management yes yes 128/0x80 128/0x80
% smartctl -a /dev/ad8
=== START OF INFORMATION SECTION ===
Device Model: HDS725050KLA360
Serial Number: KRVN02ZAG1SV7C
Firmware Version: K2AOA11A
User Capacity: 500,107,862,016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 7
ATA Standard is: ATA/ATAPI-7 T13 1532D revision 1
Local Time is: Fri Oct 28 17:42:16 2005 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: (10419) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 174) minutes.
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 100 100 016 Pre-fail Always - 1
2 Throughput_Performance 0x0004 159 159 050 Old_age Offline - 205
3 Spin_Up_Time 0x0007 110 110 024 Pre-fail Always - 618 (Average 645)
4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 34
5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0
7 Seek_Error_Rate 0x000a 100 100 067 Old_age Always - 0
8 Seek_Time_Performance 0x0004 136 136 020 Old_age Offline - 31
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 691
10 Spin_Retry_Count 0x0012 100 100 060 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 32
192 Power-Off_Retract_Count 0x0032 100 100 050 Old_age Always - 62
193 Load_Cycle_Count 0x0012 100 100 050 Old_age Always - 62
194 Temperature_Celsius 0x0002 105 105 000 Old_age Always - 52 (Lifetime Min/Max 22/62)
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 200 253 000 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 Short offline Completed without error 00% 3 -
# 2 Short captive Completed without error 00% 2 -
Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.
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.
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- Previous message: Jin Guojun: "Re: Very slow writing to SATA disk"
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