Ubuntu 使用hdparm查看硬盤的型號和讀取速度
最近在測試FTP服務(wù)器讨韭，上傳和下載的速度與不少因數(shù)有關(guān)，其中愕鼓，硬盤的讀取速度就是其中不一樣的區(qū)別點(diǎn)代态，我同時(shí)用了三臺不用的服務(wù)器架設(shè)FTP服務(wù),一臺是出來ftp服務(wù)外還含平臺其余管理軟件，一臺是全新的系統(tǒng)惩淳，只使用FTP服務(wù)蕉毯；另一個(gè)是安裝了固態(tài)硬盤的演示機(jī)器（外星人機(jī)器，一個(gè)小方盒子思犁，聽過價(jià)格將近1w）恕刘。linux
查看硬盤的讀取速度：ubuntu
hdparm -t /dev/sda:解釋，這個(gè)的sda是安裝Ubuntu系統(tǒng)的根目錄的掛載點(diǎn)抒倚。服務(wù)器
不一樣的機(jī)器掛載點(diǎn)不同app
首先DF查看測試
三臺服務(wù)器分別為：code
最先安裝那臺服務(wù)器的根目錄掛載點(diǎn)為：/dev/sda1褐着；htm
另外兩臺分別為：/dev/dm-0和/dev/mapper/ubuntu--vg-root(外星人)ip
相對應(yīng)的查看他們的讀速度則要改成：hdparm -t /dev/mapper/ubuntu--vg-rootci
硬盤數(shù)量、大型信弧：sudo fdisk -l |grep "Disk /dev/sd"
硬盤型號：sudo hdparm -i /dev/sda |grep "Model"rem
參考資料：Linux下硬盤讀寫速度測試
其余參考點(diǎn)
linux下怎樣查看硬盤型號和硬盤序列號
hdparm -i /dev/hda
顯示硬盤的相關(guān)設(shè)置
[root@cnscn ~]# hdparm /dev/sda
/dev/sda:
IO_support = 0 (default 16-bit)
readonly = 0 (off)
readahead = 256 (on)
geometry = 19929［柱面數(shù)］/255［磁頭數(shù)］/63［扇區(qū)數(shù)］, sectors = 320173056［總扇區(qū)數(shù)］, start = 0［起始扇區(qū)數(shù)］
.顯示硬盤的柱面含蓉、磁頭、扇區(qū)數(shù)
[root@cnscn ~]# hdparm -g /dev/sda
/dev/sda:
geometry = 19929［柱面數(shù)］/255［磁頭數(shù)］/63［扇區(qū)數(shù)］, sectors = 320173056［總扇區(qū)數(shù)］, start = 0［起始扇區(qū)數(shù)］
評估硬盤的讀取效率
[root@cnscn ~]# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 166 MB in 3.03 seconds = 54.85 MB/sec
[root@cnscn ~]# hdparm -t /dev/sda
/dev/sda: www.2cto.com
Timing buffered disk reads: 160 MB in 3.01 seconds = 53.11 MB/sec
[root@cnscn ~]# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 166 MB in 3.00 seconds = 55.31 MB/sec
評估硬盤快取的讀取效率
[root@cnscn ~]# hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 3784 MB in 2.00 seconds = 1894.60 MB/sec
[root@cnscn ~]# hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 3816 MB in 2.00 seconds = 1909.06 MB/sec
[root@cnscn ~]# hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 3728 MB in 2.00 seconds = 1866.29 MB/sec
檢測IDE硬盤的電源管理模式
[root@cnscn ~]# hdparm -C /dev/sda
/dev/sda:
drive state is: standby [省電模式]
.顯示IDE硬盤的內(nèi)定硬件規(guī)格
[root@cnscn ~]# hdparm -i /dev/sda
.直接檢測硬盤的硬件規(guī)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
– www.2cto.com
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 www.2cto.com
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
.檢測并設(shè)置IDE硬盤的32位I/O模式
檢測
[root@cnscn ~]# hdparm -c /dev/sda
/dev/sda:
IO_support = 0 (default 16-bit) ［默認(rèn)16位I／O］
設(shè)置
[root@cnscn ~]# hdparm -c 1 /dev/sda
.檢測并設(shè)置IDE硬盤的DMA模式
[root@cnscn ~]# hdparm -d /dev/sda
/dev/sda:
… www.2cto.com
[root@cnscn ~]# hdparm -d 1 /dev/sda
.檢測讀取文件時(shí)项郊，預(yù)先存入快取的扇區(qū)數(shù)
[root@cnscn ~]# hdparm -a /dev/sda
/dev/sda:
readahead = 256 (on)
.查詢并設(shè)置硬盤多重扇區(qū)存取的扇區(qū)數(shù)馅扣，以增進(jìn)硬盤的存取效率
[root@cnscn ~]# hdparm -m /dev/sda
[root@cnscn ~]# hdparm -m 參數(shù)值為整數(shù)值如8 /dev/sda
.將內(nèi)顧慮緩沖的數(shù)據(jù)寫入硬盤，并清除緩沖區(qū)的數(shù)據(jù)
[root@cnscn ~]# hdparm -f /dev/sda
