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Last Edit: 17.07.2017 08:45

Hard Disk


gathering some useful data for future reference



Temperature


$ forin {a..e}; do echo sudo hddtemp /dev/sd$i; done | sh
 
/dev/sda: SanDisk SDSSDA120G: 43C
/dev/sdb: WDC WD10EURX-63FH1Y0: 37C
/dev/sdc: WDC WD10EZRX-00A8LB0: 37C
/dev/sdd: ST1000DX002-2DV162: 39C
/dev/sde: ST1000DX002-2DV162: 38C

dmesg


disk errors on dmesg


--------------------- Kernel Begin ------------------------ 

 
 WARNING:  Kernel Errors Present
            res 40/00:20:00:32:00/00:00:00:00:00/40 Emask 0x1 (device error) ...:  1 Time(s)
            res 40/00:68:40:32:00/00:00:00:00:00/40 Emask 0x1 (device error) ...:  1 Time(s)
            res 40/00:80:00:22:00/00:00:00:00:00/40 Emask 0x1 (device error) ...:  1 Time(s)
            res 40/00:88:00:19:00/00:00:00:00:00/40 Emask 0x1 (device error) ...:  1 Time(s)
            res 41/40:00:38:22:00/00:01:00:00:00/00 Emask 0x409 (media error) <F> ...:  11 Time(s)
            res 41/40:00:40:32:00/00:01:00:00:00/00 Emask 0x409 (media error) <F> ...:  17 Time(s)
            res 41/40:00:50:19:00/00:01:00:00:00/00 Emask 0x409 (media error) <F> ...:  1 Time(s)
            res 41/40:00:58:19:00/00:01:00:00:00/00 Emask 0x409 (media error) <F> ...:  16 Time(s)
            res 41/40:08:38:22:00/00:00:00:00:00/00 Emask 0x409 (media error) <F> ...:  12 Time(s)
            res 41/40:08:40:32:00/00:00:00:00:00/00 Emask 0x409 (media error) <F> ...:  17 Time(s)
            res 41/40:08:58:19:00/00:00:00:00:00/00 Emask 0x409 (media error) <F> ...:  18 Time(s)
    Buffer I/O error on device sda, l ...:  30 Time(s)
    Buffer I/O error on device sdc, l ...:  30 Time(s)
    Buffer I/O error on device sdd, l ...:  20 Time(s)
    ata1.00: error: { UNC } ...:  34 Time(s)
    ata3.00: error: { UNC } ...:  35 Time(s)
    ata4.00: error: { UNC } ...:  23 Time(s)
    end_request: I/O error, dev sda, sector ...:  6 Time(s)
    end_request: I/O error, dev sdc, sector ...:  6 Time(s)
    end_request: I/O error, dev sdd, sector ...:  4 Time(s)
    sd 0:0:0:0: [sda]  Add. Sense: Unrecovered read error - auto reallocat ...:  5 Time(s)
    sd 0:0:0:0: [sda]  Sense Key : Medium Error [current] [descr ...:  5 Time(s)
    sd 2:0:0:0: [sdc]  Add. Sense: Unrecovered read error - auto reallocat ...:  6 Time(s)
    sd 2:0:0:0: [sdc]  Sense Key : Medium Error [current] [descr ...:  6 Time(s)
    sd 3:0:0:0: [sdd]  Add. Sense: Unrecovered read error - auto reallocat ...:  4 Time(s)
    sd 3:0:0:0: [sdd]  Sense Key : Medium Error [current] [descr ...:  4 Time(s)

sys 


# /bin/find /sys/devices -type f -name model -exec cat {}\ ;


ST1000DX001-1CM1
ST1000DX001-1CM1
ST1000DX001-1CM1
ST1000DX001-1CM1

proc


# cat /proc/scsi/scsi


Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: ST1000DX001-1CM1 Rev: CC43
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: ST1000DX001-1CM1 Rev: CC43
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: ST1000DX001-1CM1 Rev: CC43
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi3 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: ST1000DX001-1CM1 Rev: CC43
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi4 Channel: 00 Id: 01 Lun: 00
  Vendor: ATA      Model: ST3120811AS      Rev: E   
  Type:   Direct-Access                    ANSI  SCSI revision: 05


lsblk


# lsblk -io KNAME,TYPE,SIZE,MODEL


KNAME TYPE    SIZE MODEL
sdb   disk  931.5G ST1000DX001-1CM1
md0   raid5   2.7T 
sdc   disk  931.5G ST1000DX001-1CM1
md0   raid5   2.7T 
sdd   disk  931.5G ST1000DX001-1CM1
md0   raid5   2.7T 
sde   disk  111.8G ST3120811AS     
sde1  part      4G 
sde2  part  107.8G 
sda   disk  931.5G ST1000DX001-1CM1
md0   raid5   2.7T


hdparm

1st Step


# for i in sd{a..d} ; do hdparm -Tt  /dev/$i; done


/dev/sda:
 Timing cached reads:   2510 MB in  2.00 seconds = 1254.65 MB/sec
 Timing buffered disk reads: read(2097152) returned 294912 bytes

/dev/sdb:
 Timing cached reads:   2512 MB in  2.00 seconds = 1255.79 MB/sec
 Timing buffered disk reads: 536 MB in  3.00 seconds = 178.40 MB/sec

/dev/sdc:
 Timing cached reads:   2536 MB in  2.00 seconds = 1267.64 MB/sec
 Timing buffered disk reads: read(2097152) returned 1224704 bytes

/dev/sdd:
 Timing cached reads:   2512 MB in  2.00 seconds = 1255.86 MB/sec
 Timing buffered disk reads: read(2097152) returned 290816 bytes

2nd Step


# for i in sd{a..d} ; do hdparm -Tt  /dev/$i; done


/dev/sda:
 Timing cached reads:   2512 MB in  2.00 seconds = 1255.27 MB/sec
 Timing buffered disk reads: read(2097152) returned 294912 bytes

/dev/sdb:
 Timing cached reads:   2504 MB in  2.00 seconds = 1251.86 MB/sec
 Timing buffered disk reads: 538 MB in  3.01 seconds = 178.94 MB/sec

/dev/sdc:
 Timing cached reads:   2518 MB in  2.00 seconds = 1258.48 MB/sec
 Timing buffered disk reads: read(2097152) returned 1224704 bytes

/dev/sdd:
 Timing cached reads:   2440 MB in  2.00 seconds = 1220.15 MB/sec
 Timing buffered disk reads: read(2097152) returned 290816 bytes


3rd Step


(after reformatting sdd)


# for i in sd{a..d} ; do hdparm -Tt  /dev/$i; done


/dev/sda:
 Timing cached reads:   2532 MB in  2.00 seconds = 1266.11 MB/sec
 Timing buffered disk reads: read(2097152) returned 294912 bytes

/dev/sdb:
 Timing cached reads:   2506 MB in  2.00 seconds = 1253.05 MB/sec
 Timing buffered disk reads: 538 MB in  3.01 seconds = 178.77 MB/sec

/dev/sdc:
 Timing cached reads:   2506 MB in  2.00 seconds = 1253.10 MB/sec
 Timing buffered disk reads: read(2097152) returned 1224704 bytes

/dev/sdd:
 Timing cached reads:   2446 MB in  2.00 seconds = 1222.83 MB/sec
 Timing buffered disk reads: 546 MB in  3.01 seconds = 181.53 MB/sec

4th Step


(after reformatting sdc)


/dev/sda:
 Timing cached reads:   2510 MB in  2.00 seconds = 1254.47 MB/sec
 Timing buffered disk reads: read(2097152) returned 294912 bytes

/dev/sdb:
 Timing cached reads:   2462 MB in  2.00 seconds = 1230.93 MB/sec
 Timing buffered disk reads: 536 MB in  3.01 seconds = 178.32 MB/sec

/dev/sdc:
 Timing cached reads:   2520 MB in  2.00 seconds = 1259.41 MB/sec
 Timing buffered disk reads: 538 MB in  3.00 seconds = 179.28 MB/sec

/dev/sdd:
 Timing cached reads:   2450 MB in  2.00 seconds = 1224.46 MB/sec
 Timing buffered disk reads: 546 MB in  3.00 seconds = 181.81 MB/sec

5th Step


(after reformatting sda)


# for i in sd{a..d} ; do hdparm -Tt  /dev/$i; done

/dev/sda:
 Timing cached reads:   2502 MB in  2.00 seconds = 1251.34 MB/sec
 Timing buffered disk reads: 538 MB in  3.01 seconds = 178.94 MB/sec

/dev/sdb:
 Timing cached reads:   2490 MB in  2.00 seconds = 1244.86 MB/sec
 Timing buffered disk reads: 536 MB in  3.01 seconds = 178.31 MB/sec

/dev/sdc:
 Timing cached reads:   2524 MB in  2.00 seconds = 1262.21 MB/sec
 Timing buffered disk reads: 538 MB in  3.00 seconds = 179.15 MB/sec

/dev/sdd:
 Timing cached reads:   2452 MB in  2.00 seconds = 1226.15 MB/sec
 Timing buffered disk reads: 546 MB in  3.01 seconds = 181.64 MB/sec

smartctl

short


# for i in sd{a..d} ; do smartctl -t short /dev/$i; done


# for i in sd{a..d} ; do smartctl -l selftest /dev/$i; done


smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       10%     16758         12864
# 2  Short offline       Completed without error       00%     15137         -
# 3  Short offline       Completed: read failure       90%     15112         9704
# 4  Short offline       Completed: read failure       20%     15088         9704

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     10065         -
# 2  Short offline       Completed without error       00%      8444         -
# 3  Short offline       Completed without error       00%      8419         -
# 4  Short offline       Completed without error       00%      8396         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       10%      9173         6488
# 2  Short offline       Completed without error       00%      7551         -
# 3  Short offline       Completed without error       00%      7534         -
# 4  Short offline       Completed: read failure       90%      7526         6480

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       10%      9031         8760
# 2  Short offline       Completed without error       00%      7410         -
# 3  Short offline       Completed without error       00%      7385         -
# 4  Short offline       Completed without error       00%      7382         -


disk re-formatting


=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       90%     16778         12864
# 2  Short offline       Completed: read failure       10%     16758         12864
# 3  Short offline       Completed without error       00%     15137         -
# 4  Short offline       Completed: read failure       90%     15112         9704
# 5  Short offline       Completed: read failure       20%     15088         9704
# 6  Short offline       Completed: read failure       10%     15088         9704
# 7  Short offline       Completed without error       00%      9343         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     10085         -
# 2  Short offline       Completed without error       00%     10065         -
# 3  Short offline       Completed without error       00%      8444         -
# 4  Short offline       Completed without error       00%      8419         -
# 5  Short offline       Completed without error       00%      8396         -
# 6  Short offline       Completed without error       00%      8396         -
# 7  Short offline       Completed without error       00%      2200         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      9192         -
# 2  Short offline       Completed: read failure       10%      9173         6488
# 3  Short offline       Completed without error       00%      7551         -
# 4  Short offline       Completed without error       00%      7534         -
# 5  Short offline       Completed: read failure       90%      7526         6480
# 6  Short offline       Completed: read failure       90%      7526         6480
# 7  Short offline       Completed: read failure       30%      7503         6480
# 8  Short offline       Completed: read failure       10%      7503         6480
# 9  Short offline       Completed: read failure       10%      2656         6480

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      9051         -
# 2  Short offline       Completed: read failure       10%      9031         8760
# 3  Short offline       Completed without error       00%      7410         -
# 4  Short offline       Completed without error       00%      7385         -
# 5  Short offline       Completed without error       00%      7382         -
# 6  Short offline       Completed: read failure       90%      7361         8760
# 7  Short offline       Completed: read failure       10%      7361         8760
# 8  Short offline       Completed: read failure       10%      2515         8760

disk re-formatting v2


smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     16800         -
# 2  Short offline       Completed: read failure       90%     16778         12864
# 3  Short offline       Completed: read failure       10%     16758         12864
# 4  Short offline       Completed without error       00%     15137         -
# 5  Short offline       Completed: read failure       90%     15112         9704
# 6  Short offline       Completed: read failure       20%     15088         9704
# 7  Short offline       Completed: read failure       10%     15088         9704
# 8  Short offline       Completed without error       00%      9343         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     10108         -
# 2  Short offline       Completed without error       00%     10085         -
# 3  Short offline       Completed without error       00%     10065         -
# 4  Short offline       Completed without error       00%      8444         -
# 5  Short offline       Completed without error       00%      8419         -
# 6  Short offline       Completed without error       00%      8396         -
# 7  Short offline       Completed without error       00%      8396         -
# 8  Short offline       Completed without error       00%      2200         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      9215         -
# 2  Short offline       Completed without error       00%      9192         -
# 3  Short offline       Completed: read failure       10%      9173         6488
# 4  Short offline       Completed without error       00%      7551         -
# 5  Short offline       Completed without error       00%      7534         -
# 6  Short offline       Completed: read failure       90%      7526         6480
# 7  Short offline       Completed: read failure       90%      7526         6480
# 8  Short offline       Completed: read failure       30%      7503         6480
# 9  Short offline       Completed: read failure       10%      7503         6480
#10  Short offline       Completed: read failure       10%      2656         6480

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      9073         -
# 2  Short offline       Completed without error       00%      9051         -
# 3  Short offline       Completed: read failure       10%      9031         8760
# 4  Short offline       Completed without error       00%      7410         -
# 5  Short offline       Completed without error       00%      7385         -
# 6  Short offline       Completed without error       00%      7382         -
# 7  Short offline       Completed: read failure       90%      7361         8760
# 8  Short offline       Completed: read failure       10%      7361         8760
# 9  Short offline       Completed: read failure       10%      2515         8760

Long


smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     16802         -
# 2  Short offline       Completed without error       00%     16800         -
# 3  Short offline       Completed: read failure       90%     16778         12864
# 4  Short offline       Completed: read failure       10%     16758         12864
# 5  Short offline       Completed without error       00%     15137         -
# 6  Short offline       Completed: read failure       90%     15112         9704
# 7  Short offline       Completed: read failure       20%     15088         9704
# 8  Short offline       Completed: read failure       10%     15088         9704
# 9  Short offline       Completed without error       00%      9343         -
5 of 5 failed self-tests are outdated by newer successful extended offline self-test # 1

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     10110         -
# 2  Short offline       Completed without error       00%     10108         -
# 3  Short offline       Completed without error       00%     10085         -
# 4  Short offline       Completed without error       00%     10065         -
# 5  Short offline       Completed without error       00%      8444         -
# 6  Short offline       Completed without error       00%      8419         -
# 7  Short offline       Completed without error       00%      8396         -
# 8  Short offline       Completed without error       00%      8396         -
# 9  Short offline       Completed without error       00%      2200         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      9217         -
# 2  Short offline       Completed without error       00%      9215         -
# 3  Short offline       Completed without error       00%      9192         -
# 4  Short offline       Completed: read failure       10%      9173         6488
# 5  Short offline       Completed without error       00%      7551         -
# 6  Short offline       Completed without error       00%      7534         -
# 7  Short offline       Completed: read failure       90%      7526         6480
# 8  Short offline       Completed: read failure       90%      7526         6480
# 9  Short offline       Completed: read failure       30%      7503         6480
#10  Short offline       Completed: read failure       10%      7503         6480
#11  Short offline       Completed: read failure       10%      2656         6480
6 of 6 failed self-tests are outdated by newer successful extended offline self-test # 1

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      9075         -
# 2  Short offline       Completed without error       00%      9073         -
# 3  Short offline       Completed without error       00%      9051         -
# 4  Short offline       Completed: read failure       10%      9031         8760
# 5  Short offline       Completed without error       00%      7410         -
# 6  Short offline       Completed without error       00%      7385         -
# 7  Short offline       Completed without error       00%      7382         -
# 8  Short offline       Completed: read failure       90%      7361         8760
# 9  Short offline       Completed: read failure       10%      7361         8760
#10  Short offline       Completed: read failure       10%      2515         8760
4 of 4 failed self-tests are outdated by newer successful extended offline self-test # 1

Vog 


# hdparm -Tt /dev/vda1

/dev/vda1:
 Timing cached reads:   11740 MB in  2.00 seconds = 5876.50 MB/sec
 Timing buffered disk reads: 620 MB in  3.01 seconds = 206.31 MB/sec

ebal


# hdparm -Tt /dev/vda1 

/dev/vda1:
 Timing cached reads:   13576 MB in  2.00 seconds = 6797.29 MB/sec
 Timing buffered disk reads: 296 MB in  3.00 seconds =  98.62 MB/sec

myhomepc


# hdparm -Tt /dev/mapper/ssd

/dev/mapper/ssd:
 Timing cached reads:   13036 MB in  2.00 seconds = 6522.07 MB/sec
 Timing buffered disk reads: 688 MB in  3.00 seconds = 229.20 MB/sec

ServerTwo


# for i in sd{a..d} ; do hdparm -Tt  /dev/$i; done


/dev/sda:
 Timing cached reads:   2464 MB in  2.00 seconds = 1232.16 MB/sec
 Timing buffered disk reads: 570 MB in  3.00 seconds = 189.91 MB/sec

/dev/sdb:
 Timing cached reads:   2454 MB in  2.00 seconds = 1226.94 MB/sec
 Timing buffered disk reads: 600 MB in  3.00 seconds = 199.70 MB/sec

/dev/sdc:
 Timing cached reads:   2452 MB in  2.00 seconds = 1226.13 MB/sec
 Timing buffered disk reads: 570 MB in  3.01 seconds = 189.42 MB/sec

/dev/sdd:
 Timing cached reads:   2438 MB in  2.00 seconds = 1218.86 MB/sec
 Timing buffered disk reads: 640 MB in  3.01 seconds = 212.90 MB/sec

smartctl

Short

# for i in sd{a..d} ; do smartctl -t short /dev/$i; done

Results


# for i in sd{a..d} ; do smartctl -l selftest /dev/$i; done


smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      6462         -
# 2  Short offline       Completed without error       00%      5271         -
# 3  Short offline       Completed without error       00%      5161         -
# 4  Short offline       Completed without error       00%      4817         -
# 5  Short offline       Completed without error       00%      4793         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      6463         -
# 2  Short offline       Completed without error       00%      5272         -
# 3  Short offline       Completed without error       00%      5161         -
# 4  Short offline       Completed without error       00%      4817         -
# 5  Short offline       Completed without error       00%      4793         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     10765         -
# 2  Short offline       Completed without error       00%      9574         -
# 3  Short offline       Completed without error       00%      9463         -
# 4  Short offline       Completed without error       00%      9119         -
# 5  Short offline       Completed without error       00%      9095         -
# 6  Short offline       Completed without error       00%      8583         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      1316         -
# 2  Short offline       Completed without error       00%       124         -
# 3  Short offline       Completed without error       00%        14         -

Long


# for i in sd{a..d} ; do smartctl -t long /dev/$i; done

Results


smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      6464         -
# 2  Short offline       Completed without error       00%      6462         -
# 3  Short offline       Completed without error       00%      5271         -
# 4  Short offline       Completed without error       00%      5161         -
# 5  Short offline       Completed without error       00%      4817         -
# 6  Short offline       Completed without error       00%      4793         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      6465         -
# 2  Short offline       Completed without error       00%      6463         -
# 3  Short offline       Completed without error       00%      5272         -
# 4  Short offline       Completed without error       00%      5161         -
# 5  Short offline       Completed without error       00%      4817         -
# 6  Short offline       Completed without error       00%      4793         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%     10767         -
# 2  Short offline       Completed without error       00%     10765         -
# 3  Short offline       Completed without error       00%      9574         -
# 4  Short offline       Completed without error       00%      9463         -
# 5  Short offline       Completed without error       00%      9119         -
# 6  Short offline       Completed without error       00%      9095         -
# 7  Short offline       Completed without error       00%      8583         -

smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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%      1317         -
# 2  Short offline       Completed without error       00%      1316         -
# 3  Short offline       Completed without error       00%       124         -
# 4  Short offline       Completed without error       00%        14         -


Full smart report on sda


# smartctl -a /dev/sda | mail -s sda root


smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.3.2.el6.centos.plus.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Desktop SSHD
Device Model:     ST1000DX001-1CM162
Serial Number:    Z1D90KEX
LU WWN Device Id: 5 000c50 065c467fc
Firmware Version: CC43
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  ACS-2 (unknown minor revision code: 0x001f)
Local Time is:    Mon Jul 17 09:23:00 2017 EEST
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:  (0x00)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Disabled.
Self-test execution status:      ( 121)	The previous self-test completed having
					the read element of the test failed.
Total time to complete Offline 
data collection: 		(  575) seconds.
Offline data collection
capabilities: 			 (0x73) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					No Offline surface scan supported.
					Self-test supported.
					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: 	 ( 105) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x1081)	SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   095   094   006    Pre-fail  Always       -       12032628
  3 Spin_Up_Time            0x0003   097   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       51
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   079   060   030    Pre-fail  Always       -       96711801
  9 Power_On_Hours          0x0032   081   081   000    Old_age   Always       -       16779
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       52
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   016   016   000    Old_age   Always       -       84
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   068   059   045    Old_age   Always       -       32 (Min/Max 27/40)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       49
193 Load_Cycle_Count        0x0032   099   099   000    Old_age   Always       -       3949
194 Temperature_Celsius     0x0022   032   041   000    Old_age   Always       -       32 (0 15 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       40
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       40
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       830h+10m+13.829s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       14226864576
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       317003175362

SMART Error Log Version: 1
ATA Error Count: 56 (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 56 occurred at disk power-on lifetime: 16778 hours (699 days + 2 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
  -- -- -- -- -- -- --
  40 51 00 40 32 00 00  Error: UNC at LBA = 0x00003240 = 12864

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 40 32 00 40 00  18d+22:04:10.829  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  18d+22:04:10.828  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  18d+22:04:10.828  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  18d+22:04:10.795  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  18d+22:04:10.795  SET FEATURES [Set transfer mode]

Error 55 occurred at disk power-on lifetime: 16778 hours (699 days + 2 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
  -- -- -- -- -- -- --
  40 51 00 40 32 00 00  Error: UNC at LBA = 0x00003240 = 12864

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 40 32 00 40 00  18d+22:04:07.236  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  18d+22:04:07.236  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  18d+22:04:07.236  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  18d+22:04:07.203  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  18d+22:04:07.203  SET FEATURES [Set transfer mode]

Error 54 occurred at disk power-on lifetime: 16778 hours (699 days + 2 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
  -- -- -- -- -- -- --
  40 51 00 40 32 00 00  Error: UNC at LBA = 0x00003240 = 12864

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 40 32 00 40 00  18d+22:04:03.686  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  18d+22:04:03.685  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  18d+22:04:03.685  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  18d+22:04:03.652  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  18d+22:04:03.652  SET FEATURES [Set transfer mode]

Error 53 occurred at disk power-on lifetime: 16778 hours (699 days + 2 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
  -- -- -- -- -- -- --
  40 51 00 40 32 00 00  Error: UNC at LBA = 0x00003240 = 12864

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 40 32 00 40 00  18d+22:04:00.135  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  18d+22:04:00.135  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  18d+22:04:00.135  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  18d+22:04:00.102  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  18d+22:04:00.102  SET FEATURES [Set transfer mode]

Error 52 occurred at disk power-on lifetime: 16778 hours (699 days + 2 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
  -- -- -- -- -- -- --
  40 51 00 40 32 00 00  Error: UNC at LBA = 0x00003240 = 12864

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 40 32 00 40 00  18d+22:03:56.576  READ FPDMA QUEUED
  ef 10 02 00 00 00 a0 00  18d+22:03:56.576  SET FEATURES [Reserved for Serial ATA]
  27 00 00 00 00 00 e0 00  18d+22:03:56.576  READ NATIVE MAX ADDRESS EXT
  ec 00 00 00 00 00 a0 00  18d+22:03:56.543  IDENTIFY DEVICE
  ef 03 46 00 00 00 a0 00  18d+22:03:56.543  SET FEATURES [Set transfer mode]

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       90%     16778         12864
# 2  Short offline       Completed: read failure       10%     16758         12864
# 3  Short offline       Completed without error       00%     15137         -
# 4  Short offline       Completed: read failure       90%     15112         9704
# 5  Short offline       Completed: read failure       20%     15088         9704
# 6  Short offline       Completed: read failure       10%     15088         9704
# 7  Short offline       Completed without error       00%      9343         -

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