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[Linux Command] DISK Link 속도확인

글쓴이 : 최고관리자 날짜 : 2015-05-14 (목) 11:54 조회 : 3781

글주소 :

리눅스 명령어를 이용해서 디스크 정보와 링크속도를 확인하는 방법입니다.

실제 디스크 링크속도는 메인보드와 디스크에서 모두 지원되어야 원하는 속도가 나오기에 잘 확인하셔서 이용하여야 합니다.

손쉽게 확인하는 방법으로 아래 4개정도로 요약해 볼 수 있을거 같습니다.

※ SATA DISK Revision

SATA REVISION => SPEED ({Gbit|MB}/s)

SATA revision 1.0 => 1.5 Gbit/s, 150 MB/s

SATA revision 2.0 => 3 Gbit/s, 300 MB/s

SATA revision 3.0 => 6 Gbit/s, 600 MB/s

SATA revision 3.2 => 16 Gbit/s, 1969 MB/s

1. dmesg 로그로 확인

# dmesg | grep -i sata | grep 'link up'

[ 2.569676] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)

[ 2.569697] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)

[ 2.569718] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)

[ 2.569746] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)

2. smartctl 명령어

:: smartctl 패키지가 없을경우 설치

# apt-get install smartctlmontools

# smartctl -a /dev/sdb | grep "^SATA"

SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)

# smartctl -a /dev/sdc | grep "^SATA"

SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)

# smartctl -a /dev/sdd | grep "^SATA"

SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)

# smartctl -a /dev/sde | grep "^SATA"

SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)

3. hdparm 명령어

# hdparm -I /dev/sdb | egrep "Model|speed|Transport"

Model Number: ST3000DM001-1CH166

Transport: Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0

* Gen1 signaling speed (1.5Gb/s)

* Gen2 signaling speed (3.0Gb/s)

* Gen3 signaling speed (6.0Gb/s)

* SMART Command Transport (SCT) feature set

# hdparm -I /dev/sdc | egrep "Model|speed|Transport"

Model Number: ST3000DM001-1ER166

Transport: Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0

* Gen1 signaling speed (1.5Gb/s)

* Gen2 signaling speed (3.0Gb/s)

* Gen3 signaling speed (6.0Gb/s)

* SMART Command Transport (SCT) feature set

# hdparm -I /dev/sdd | egrep "Model|speed|Transport"

Model Number: ST3000DM001-1ER166

Transport: Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0

* Gen1 signaling speed (1.5Gb/s)

* Gen2 signaling speed (3.0Gb/s)

* Gen3 signaling speed (6.0Gb/s)

* SMART Command Transport (SCT) feature set

# hdparm -I /dev/sde | egrep "Model|speed|Transport"

Model Number: ST3000DM001-1CH166

Transport: Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0

* Gen1 signaling speed (1.5Gb/s)

* Gen2 signaling speed (3.0Gb/s)

* Gen3 signaling speed (6.0Gb/s)

* SMART Command Transport (SCT) feature set

4. /sys(시스템정보)내 정보를 Shell script 이용해서 확인

!/bin/bash

for i in `grep -l Gbps /sys/class/ata_link/*/sata_spd`; do

echo Link "${i%/*}" Speed `cat $i`

cat "${i%/*}"/device/dev*/ata_device/dev*/id | perl -nE 's/([0-9a-f]{2})/print chr hex $1/gie' | echo " " Device `strings` | cut -f 1-3

done

Link /sys/class/ata_link/link1 Speed 6.0 Gbps

Device Z1F55V2X CC29 ST3000DM001-1CH166 4k}iAc4i IAc@ ]P

Link /sys/class/ata_link/link2 Speed 6.0 Gbps

Device Z5002Q7H CC43 ST3000DM001-1ER166 4k}iAc4i IAc@ ]P

Link /sys/class/ata_link/link3 Speed 3.0 Gbps

Device Z5002QGC CC43 ST3000DM001-1ER166 4k}iAc4i IAc@ ]P

Link /sys/class/ata_link/link4 Speed 3.0 Gbps

Device Z1F54ZFX CC29 ST3000DM001-1CH166 4k}iAc4i IAc@ ]P

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