在准备替换或加装硬盘时，如何得到硬盘信息？可以用smartctl,hdparm等命令来查询。在日志中显示硬盘有坏扇区

1tail /var/log/messages
2Mar  1 09:42:55 c1g smartd[1848]: Device: /dev/hda, 2 Currently unreadable (pending) sectors
3Mar  1 09:42:55 c1g smartd[1848]: Device: /dev/hda, 2 Offline uncorrectable sectors

dmesg中也有错误信息

1dmesg
2ide: failed opcode was: unknown
3hda: no DRQ after issuing WRITE
4ide0: reset: success
5hda: status timeout: status=0xd0 { Busy }

对硬盘做一下健康检查

1smartctl -H /dev/hda
2smartctl version 5.33 [i386-redhat-linux-gnu] Copyright (C) 2002-4 Bruce Allen
3Home page is http://smartmontools.sourceforge.net/
4=== START OF READ SMART DATA SECTION ===
5SMART overall-health self-assessment test result: PASSED

检测通过，保险起见还是准备换硬盘。查看下当前硬盘的型号,可以得到硬盘接口为SATAII，及尺寸大小3.5″

 1smartctl -a /dev/hda
 2smartctl version 5.33 [i386-redhat-linux-gnu] Copyright (C) 2002-4 Bruce Allen
 3Home page is http://smartmontools.sourceforge.net/
 4=== START OF INFORMATION SECTION ===
 5Device Model:     ST3160815AS
 6Serial Number:    6RA7DWM4
 7Firmware Version: 4.AAB
 8User Capacity:    160,040,803,840 bytes
 9Device is:        Not in smartctl database [for details use: -P showall]
10ATA Version is:   7
11ATA Standard is:  Exact ATA specification draft version not indicated
12Local Time is:    Mon Mar  1 10:36:55 2010 CST
13SMART support is: Available - device has SMART capability.
14SMART support is: Enabled
15=== START OF READ SMART DATA SECTION ===
16SMART overall-health self-assessment test result: PASSED

hdparm也可以得到硬盘型号

 1hdparm -i /dev/hda
 2/dev/hda:
 3 Model=ST3160815AS, FwRev=4.AAB, SerialNo=6RA7DWM4
 4 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 5 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 6 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=off
 7 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
 8 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 9 PIO modes:  pio0 pio1 pio2 pio3 pio4
10 DMA modes:  mdma0 mdma1 mdma2
11 UDMA modes: udma0 udma1 udma2
12 AdvancedPM=no WriteCache=enabled
13 Drive conforms to: device does not report version:
14 * signifies the current active mode

也可以通过主板型号来得知支持的硬盘

1dmidecode
2System Information
3      Manufacturer: Gigabyte Technology Co., Ltd.
4      Product Name: 945GCM-S2L