显示硬盘的相关设置 [root@cnscn ~]# hdparm /dev/sda /dev/sda: IO_support = 0 (default 16-bit) readonly = 0 (off) readahead = 256 (on) geometry = 19929［柱面数］/255［磁头数］/63［扇区数］, sectors = 33056［总扇区数］, start = 0［起始扇区数］ .显示硬盘的柱面、磁头、扇区数 [root@cnscn ~]# hdparm -g /dev/sda /dev/sda: geometry = 19929［柱面数］/255［磁头数］/63［扇区数］, sectors = 33056［总扇区数］, start = 0［起始扇区数］ .评估硬盘的读取效率 [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: 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 .评估硬盘快取的读取效率 [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 .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: 33056 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
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