A. linux怎麼查看硬碟型號等信息
hdparm -i /dev/hda
顯示硬碟的相關設置
[root@cnscn ~]# hdparm /dev/sda
/dev/sda:
IO_support = 0 (default 16-bit)
readonly = 0 (off)
readahead = 256 (on)
geometry = 19929［柱面數］/255［磁頭數］/63［扇區數］, sectors = 320173056［總扇區數］, start = 0［起始扇區數］
.顯示硬碟的柱面、磁頭、扇區數
[root@cnscn ~]# hdparm -g /dev/sda
/dev/sda:
geometry = 19929［柱面數］/255［磁頭數］/63［扇區數］, sectors = 320173056［總扇區數］, start = 0［起始扇區數］
.評估硬碟的讀取效率
[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
.評估硬碟快取的讀取效率
[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硬碟的電源管理模式
[root@cnscn ~]# hdparm -C /dev/sda
/dev/sda:
drive state is: standby [省電模式]
.顯示IDE硬碟的內定硬體規格
[root@cnscn ~]# hdparm -i /dev/sda
.直接檢測硬碟的硬體規格
[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
.檢測並設置IDE硬碟的32位I/O模式
檢測
[root@cnscn ~]# hdparm -c /dev/sda
/dev/sda:
IO_support = 0 (default 16-bit) ［默認16位I／O］
設置
[root@cnscn ~]# hdparm -c 1 /dev/sda
.檢測並設置IDE硬碟的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，預先存入快取的扇區數
[root@cnscn ~]# hdparm -a /dev/sda
/dev/sda:
readahead = 256 (on)
.查詢並設置硬碟多重扇區存取的扇區數，以增進硬碟的存取效率
[root@cnscn ~]# hdparm -m /dev/sda
[root@cnscn ~]# hdparm -m 參數值為整數值如8 /dev/sda
.將內顧慮緩沖的數據寫入硬碟，並清除緩沖區的數據