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  • Linux如何查看硬盘型号和缓存

    Linux如何查看硬盘型号和缓存?方法:hdparm  -i /dev/sda1

    hdparm  -i /dev/sda1

    /dev/sda1:

     Model=WDC WD10EACS-00ZJB0  (硬盘型号)                   , FwRev=01.01B01, SerialNo=     WD-WCASJ0976997
     Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
     RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
     BuffType=unknown, BuffSize=16384kB(硬盘缓存), MaxMultSect=16, MultSect=?16?
     CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
     IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
     PIO modes:  pio0 pio3 pio4
     DMA modes:  mdma0 mdma1 mdma2
     UDMA modes: udma0 udma1 udma2
     AdvancedPM=no www.ctohome.com WriteCache=enabled
     Drive conforms to: Unspecified:  ATA/ATAPI-1 ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

     * signifies the current active mode

    [root@host96 www.ctohome.com]# hdparm  -i /dev/sda1

    /dev/sda1:

     Model=Hitachi HDT721010SLA360                 , FwRev=ST6OA31B, SerialNo=      STF604MR2DG61P
     Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
     RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=56
     BuffType=DualPortCache, BuffSize=15001kB, MaxMultSect=16, MultSect=?16?
     CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
     IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
     PIO modes:  pio0 pio1 pio2 pio3 pio4
     DMA modes:  mdma0 mdma1 mdma2
     UDMA modes: udma0 udma1 udma2
     AdvancedPM=yes: disabled (255) WriteCache=enabled
     Drive conforms to: unknown:  ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

     * signifies the current active mode

    linux/centos系统的服务器如何用hdparm测试硬盘性能,测试硬盘速度?

    [root@host88 www.ctohome.com]# hdparm -tT /dev/sda8

    /dev/sda8:
     Timing cached reads:   8512 MB in  2.00 seconds = 4262.60 MB/sec
     Timing buffered disk reads:  222 MB in  3.02 seconds =  73.58 MB/sec

    [root@host96 www.ctohome.com]# hdparm -tT /dev/sda2

    /dev/sda2:
     Timing cached reads:   7684 MB in  2.00 seconds = 3848.10 MB/sec
     Timing buffered disk reads:  116 MB in  3.15 seconds =  36.82 MB/sec

    注意,hdparm -tT 必须要在机器空闲的时候测试才准确,机器繁忙的时候是测不准的。如果有小于20MB/Sec的结果,那么磁盘的IO性能就不怎么样了。

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  • 原文地址:https://www.cnblogs.com/feihongwuhen/p/7170406.html
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