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=============附上测试数据===================
root@62-210-247-189:~#
smartctl -d ata -a /dev/sda
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.2.0-35-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model:
TOSHIBA MG03ACA100
Serial Number: X4NBK0FWF
LU WWN Device Id: 5 000039 5dbc00054
Add. Product Id: DELL(tm)
Firmware Version: FL1D
User Capacity: 1 000 204 886 016 bytes [1,00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 7200 rpm
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Thu Jun 29 10:44:28 2017 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
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 100 100 050 Pre-fail Always - 0
2 Throughput_Performance 0x0004 100 100 000 Old_age Offline - 0
3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 4323
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 19
5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 0
7 Seek_Error_Rate 0x000a 100 100 000 Old_age Always - 0
8 Seek_Time_Performance 0x0004 100 100 000 Old_age Offline - 0
9 Power_On_Hours 0x0032 071 071 000 Old_age Always - 11606
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 10
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 4
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 2248
194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 25 (Min/Max 18/39)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
241 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 12655922626
242 Total_LBAs_Read 0x0032 100 100 000 Old_age Always - 53090624841
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% 11304 -
# 2 Extended offline Completed without error 00% 11302 -
# 3 Short offline Completed without error 00% 11300 -
# 4 Short offline Completed without error 00% 2618 -
# 5 Short offline Completed without error 00% 6 -
# 6 Short offline Completed without error 00% 3 -
# 7 Extended offline Completed without error 00% 3 -
# 8 Short offline Completed without error 00% 0 -
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.
root@62-210-247-189:~# smartctl -d ata -a /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.2.0-35-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: TOSHIBA MG03ACA100
Serial Number: X4N3KQHXF
LU WWN Device Id: 5 000039 5db80300f
Add. Product Id: DELL(tm)
Firmware Version: FL1D
User Capacity: 1 000 204 886 016 bytes [1,00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 7200 rpm
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Thu Jun 29 10:44:31 2017 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
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 100 100 050 Pre-fail Always - 0
2 Throughput_Performance 0x0004 100 100 000 Old_age Offline - 0
3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 4368
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 19
5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 0
7 Seek_Error_Rate 0x000a 100 100 000 Old_age Always - 0
8 Seek_Time_Performance 0x0004 100 100 000 Old_age Offline - 0
9 Power_On_Hours 0x0032 072 072 000 Old_age Always - 11591
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 10
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 4
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 2100
194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 26 (Min/Max 18/37)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 253 000 Old_age Always - 0
241 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 26813753790
242 Total_LBAs_Read 0x0032 100 100 000 Old_age Always - 30607012270
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% 11289 -
# 2 Extended offline Completed without error 00% 11288 -
# 3 Short offline Completed without error 00% 11285 -
# 4 Short offline Completed without error 00% 2618 -
# 5 Short offline Completed without error 00% 6 -
# 6 Short offline Completed without error 00% 3 -
# 7 Extended offline Completed without error 00% 3 -
# 8 Short offline Completed without error 00% 0 -
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.
root@62-210-247-189:~# cd /mnt/md126
root@62-210-247-189:/mnt/md126# ls
lost+found
root@62-210-247-189:/mnt/md126# cd ../md127
root@62-210-247-189:/mnt/md127# ls
bin boot data dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
root@62-210-247-189:/mnt/md127# dd if=/dev/zero of=test.data bs=1M count=64 conv=fdatasync
64+0 records in
64+0 records out
67108864 bytes (67 MB) copied, 0,517735 s,
130 MB/s
root@62-210-247-189:/mnt/md127# echo 1 > /proc/sys/vm/drop_caches
root@62-210-247-189:/mnt/md127# dd if=test.data of=/tmp/file bs=1M count=1024 conv=fdatasync
64+0 records in
64+0 records out
67108864 bytes (67 MB) copied, 0,410152 s,
164 MB/s
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