私たちのサーバーにソフトウェア攻撃があり、ディスクパフォーマンスの問題が発生しました。ディスクI / Oが時々停止します。この間、iostatあるディスクは他のディスクよりも速いものとして表示されます。どちらのディスクもメーカーとタイプが同じです。これは、ハードウェアに問題があることを意味しますか？
root@roubaix:~# iostat -p -x 1
...
avg-cpu: %user %nice %system %iowait %steal %idle
0.50 0.00 6.74 0.00 0.00 92.76
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
0.25 0.00 6.19 10.86 0.00 82.70
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 8.00 0.00 800.00 0.00 5636.00 14.09 49.00 61.24 0.00 61.24 0.66 52.40
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 8.00 0.00 800.00 0.00 5636.00 14.09 49.00 61.24 0.00 61.24 0.66 52.40
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 9.00 0.00 646.00 0.00 4908.00 15.20 138.72 179.63 0.00 179.63 1.50 96.80
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 9.00 0.00 646.00 0.00 4908.00 15.20 138.72 179.63 0.00 179.63 1.50 96.80
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 0.00 1529.00 0.00 14708.00 19.24 0.00 0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
0.13 0.00 3.67 12.26 0.00 83.94
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 2.00 0.00 448.00 0.00 3344.00 14.93 0.72 1.60 0.00 1.60 0.09 4.00
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 2.00 0.00 448.00 0.00 3344.00 14.93 0.72 1.60 0.00 1.60 0.09 4.00
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 2.00 0.00 450.00 0.00 2904.00 12.91 144.19 292.60 0.00 292.60 2.22 100.00
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 2.00 0.00 450.00 0.00 2904.00 12.91 144.19 292.60 0.00 292.60 2.22 100.00
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 0.00 155.00 0.00 3432.00 44.28 0.00 0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
0.38 0.00 3.78 18.89 0.00 76.95
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 1.00 0.00 320.00 0.00 6372.00 39.83 0.64 2.01 0.00 2.01 0.09 2.80
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 1.00 0.00 320.00 0.00 6372.00 39.83 0.64 2.01 0.00 2.01 0.09 2.80
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 1.00 0.00 320.00 0.00 4236.00 26.48 143.48 442.86 0.00 442.86 3.12 100.00
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 1.00 0.00 320.00 0.00 4236.00 26.48 143.48 442.86 0.00 442.86 3.12 100.00
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 0.00 4.00 0.00 16.00 8.00 0.00 0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
0.51 0.00 3.29 18.23 0.00 77.97
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 4.00 0.00 107.00 0.00 2812.00 52.56 0.20 1.87 0.00 1.87 0.11 1.20
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 4.00 0.00 107.00 0.00 2812.00 52.56 0.20 1.87 0.00 1.87 0.11 1.20
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 4.00 0.00 216.00 0.00 5164.00 47.81 112.01 569.59 0.00 569.59 4.63 100.00
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 4.00 0.00 216.00 0.00 5164.00 47.81 112.01 569.59 0.00 569.59 4.63 100.00
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 0.00 1.00 0.00 4.00 8.00 0.00 0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
0.25 0.00 6.26 1.88 0.00 91.61
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 0.00 0.00 1.00 0.00 4.00 8.00 0.02 24.00 0.00 24.00 24.00 2.40
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 0.00 0.00 1.00 0.00 4.00 8.00 0.02 24.00 0.00 24.00 24.00 2.40
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 0.00 0.00 43.00 0.00 956.00 44.47 7.56 779.26 0.00 779.26 4.74 20.40
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 0.00 0.00 43.00 0.00 956.00 44.47 7.56 779.26 0.00 779.26 4.74 20.40
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Tue Apr 14 13:38:48 UTC 2015
avg-cpu: %user %nice %system %iowait %steal %idle
0.38 0.00 4.91 0.38 0.00 94.33
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdb 0.00 0.00 1.00 0.00 4.00 0.00 8.00 0.03 28.00 28.00 0.00 28.00 2.80
sdb1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb2 0.00 0.00 1.00 0.00 4.00 0.00 8.00 0.03 28.00 28.00 0.00 28.00 2.80
sdb3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
md2 0.00 0.00 1.00 0.00 4.00 0.00 8.00 0.00 0.00 0.00 0.00 0.00 0.00
次に追加：
/var/log/kern.logどちらにもハードディスクに関する内容はありません/var/log/messages。出力全体を添付しましたsmartctl -a /dev/sda（smartctl -t long /dev/sda2日前に実行しました）。出力を完全には理解していませんが、報告されlifetime: 297 hours (12 days + 9 hours)たエラーは長いテストを開始する前から存在していました。ありがとうございます。
root@roubaix:~# smartctl -a /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Device Model: TOSHIBA DT01ACA200
Serial Number: 5386DM9GS
LU WWN Device Id: 5 000039 ff3d1011d
Firmware Version: MX4OABB0
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 4
Local Time is: Tue Apr 14 14:22:29 2015 UTC
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: (0x84) Offline data collection activity
was suspended by an interrupting command from host.
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: (15109) 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: ( 252) 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 100 100 016 Pre-fail Always - 65536
2 Throughput_Performance 0x0005 139 139 054 Pre-fail Offline - 73
3 Spin_Up_Time 0x0007 157 157 024 Pre-fail Always - 291 (Average 191)
4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 12
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 124 124 020 Pre-fail Offline - 33
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 6763
10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 11
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 16
193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 16
194 Temperature_Celsius 0x0002 171 171 000 Old_age Always - 35 (Min/Max 13/47)
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 - 14
SMART Error Log Version: 1
ATA Error Count: 14 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 14 occurred at disk power-on lifetime: 297 hours (12 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 01 c8 41 e7 0a Error: ICRC, ABRT at LBA = 0x0ae741c8 = 182927816
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 08 00 c1 41 e7 40 00 6d+03:04:10.321 WRITE FPDMA QUEUED
27 00 00 00 00 00 e0 00 6d+03:04:10.296 READ NATIVE MAX ADDRESS EXT
ec 00 00 00 00 00 a0 00 6d+03:04:10.295 IDENTIFY DEVICE
ef 03 42 00 00 00 a0 00 6d+03:04:10.295 SET FEATURES [Set transfer mode]
27 00 00 00 00 00 e0 00 6d+03:04:10.294 READ NATIVE MAX ADDRESS EXT
Error 13 occurred at disk power-on lifetime: 297 hours (12 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 01 88 41 79 09 Error: ICRC, ABRT at LBA = 0x09794188 = 158941576
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 08 58 c1 41 e7 40 00 6d+03:04:09.973 WRITE FPDMA QUEUED
61 50 50 39 b9 94 40 00 6d+03:04:09.973 WRITE FPDMA QUEUED
61 40 48 a9 45 79 40 00 6d+03:04:09.973 WRITE FPDMA QUEUED
61 10 40 89 41 7b 40 00 6d+03:04:09.973 WRITE FPDMA QUEUED
61 10 38 c1 41 7b 40 00 6d+03:04:09.973 WRITE FPDMA QUEUED
Error 12 occurred at disk power-on lifetime: 297 hours (12 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 01 c8 41 e7 0a Error: ICRC, ABRT at LBA = 0x0ae741c8 = 182927816
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 10 20 c1 41 7b 40 00 6d+03:04:04.352 WRITE FPDMA QUEUED
61 10 18 89 41 7b 40 00 6d+03:04:04.352 WRITE FPDMA QUEUED
61 40 10 a9 45 79 40 00 6d+03:04:04.352 WRITE FPDMA QUEUED
61 50 08 39 b9 94 40 00 6d+03:04:04.352 WRITE FPDMA QUEUED
61 08 00 c1 41 e7 40 00 6d+03:04:04.352 WRITE FPDMA QUEUED
Error 11 occurred at disk power-on lifetime: 297 hours (12 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 01 88 41 79 09 Error: ICRC, ABRT at LBA = 0x09794188 = 158941576
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 08 58 c1 41 e7 40 00 6d+03:04:04.029 WRITE FPDMA QUEUED
61 50 50 39 b9 94 40 00 6d+03:04:04.029 WRITE FPDMA QUEUED
61 40 48 a9 45 79 40 00 6d+03:04:04.029 WRITE FPDMA QUEUED
61 10 40 89 41 7b 40 00 6d+03:04:04.029 WRITE FPDMA QUEUED
61 10 38 c1 41 7b 40 00 6d+03:04:04.029 WRITE FPDMA QUEUED
Error 10 occurred at disk power-on lifetime: 297 hours (12 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 01 c8 41 e7 0a Error: ICRC, ABRT at LBA = 0x0ae741c8 = 182927816
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 10 20 c1 41 7b 40 00 6d+03:04:03.706 WRITE FPDMA QUEUED
61 10 18 89 41 7b 40 00 6d+03:04:03.706 WRITE FPDMA QUEUED
61 40 10 a9 45 79 40 00 6d+03:04:03.706 WRITE FPDMA QUEUED
61 50 08 39 b9 94 40 00 6d+03:04:03.706 WRITE FPDMA QUEUED
61 08 00 c1 41 e7 40 00 6d+03:04:03.706 WRITE FPDMA QUEUED
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% 6650 -
# 2 Short offline Completed without error 00% 6620 -
# 3 Short offline Completed without error 00% 6620 -
# 4 Short offline Completed without error 00% 374 -
# 5 Short offline Completed without error 00% 374 -
# 6 Short offline Completed without error 00% 361 -
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.