Linux 硬盘工具之hdparm

安装

yum -y install hdparm

显示硬盘的相关设置

测试硬盘的读取速度

检测IDE硬盘的电源管理模式

[root@cnscn ~]# hdparm -C /dev/sda

/dev/sda:

drive state is: standby [省电模式]

.显示IDE硬盘的内定硬件规格

[root@cnscn ~]# hdparm -i /dev/sda

直接检测硬盘的硬件规格

[root@cnscn ~]# hdparm -I /dev/sda

/dev/sda:

ATA device, with non-removable media

Model Number: Maxtor 6B160M0

Serial Number: B404PTJH

Firmware Revision: BANC1BM0

Standards:

Supported: 7 6 5 4

Likely used: 7

Configuration:

Logical max current

cylinders 16383 16383

heads 16 16

sectors/track 63 63

–

CHS current addressable sectors: 16514064

LBA user addressable sectors: 268435455

LBA48 user addressable sectors: 320173056

device size with M = 1024*1024: 156334 MBytes

device size with M = 1000*1000: 163928 MBytes (163 GB)

Capabilities:

LBA, IORDY(can be disabled)

Queue depth: 32

Standby timer values: spec’d by Standard, no device specific minimum

R/W multiple sector transfer: Max = 16 Current = 16

Advanced power management level: unknown setting (0×0000)

Recommended acoustic management value: 192, current value: 254

DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6

Cycle time: min=120ns recommended=120ns

PIO: pio0 pio1 pio2 pio3 pio4

Cycle time: no flow control=120ns IORDY flow control=120ns

Commands/features:

Enabled Supported:

* NOP cmd

* READ BUFFER cmd

* WRITE BUFFER cmd

* Host Protected Area feature set

* Look-ahead

* Write cache

* Power Management feature set

Security Mode feature set

* SMART feature set

* FLUSH CACHE EXT command

* Mandatory FLUSH CACHE command

* Device Configuration Overlay feature set

* 48-bit Address feature set

* Automatic Acoustic Management feature set

SET MAX security extension

Advanced Power Management feature set

* DOWNLOAD MICROCODE cmd

* General Purpose Logging feature set

* SMART self-test

* SMART error logging

Security:

Master password revision code = 65534

supported

not enabled

not locked

not frozen

not expired: security count

not supported: enhanced erase

Checksum: correct

.检测并设置IDE硬盘的32位I/O模式

检测

[root@cnscn ~]# hdparm -c /dev/sda

/dev/sda:

IO_support = 0 (default 16-bit) ［默认16位I／O］

设置

[root@cnscn ~]# hdparm -c 1 /dev/sda

.检测并设置IDE硬盘的DMA模式

[root@cnscn ~]# hdparm -d /dev/sda

/dev/sda:

…

[root@cnscn ~]# hdparm -d 1 /dev/sda

.检测读取文件时，预先存入快取的扇区数

[root@cnscn ~]# hdparm -a /dev/sda

/dev/sda:

readahead = 256 (on)

.查询并设置硬盘多重扇区存取的扇区数，以增进硬盘的存取效率

[root@cnscn ~]# hdparm -m /dev/sda

[root@cnscn ~]# hdparm -m 参数值为整数值如8 /dev/sda

.将内顾虑缓冲的数据写入硬盘，并清除缓冲区的数据

[root@cnscn ~]# hdparm -f /dev/sda