最近經常要測試新硬體，瞭解硬體的具體型號和引數就非常重要，過去經常透過lspci, dmidecode, dmesg, ethtool, lshal, megacli等命令和各種/proc資訊來了解，需要對這些工具很熟悉, 貌似比較不方便和準確。

今天看到某同學用的hwconfig感覺資訊很專業，推薦給大家。這裡可以下載, 感謝微博@frostwatcher同學.

hwconfig透過收集上面提到的各種資訊, 然後根據wiki或者廠家公佈的裝置識別碼, 進一步加工,給使用者一個直觀的資訊.

不廢話,效果如下：

$ uname -r
2.6.18-164.el5
$ hwconfig  -h
usage:  hwconfig [-dhnv] [-t timeout] [-r file] [-x file] [-o file]
        -d  show debugging information
        -h  show usage
        -n  don't break output lines
        -o  write output to file (- for stdout)
        -r  write raw source to file (- for stdout)
        -t  abort after timeout seconds
        -v  show version
        -x  write xml to file (- for stdout)
##簡約模式
$ sudo hwconfig   
hwconfig: warning: could not run megarc; please yinst megarc
Summary:        Huawei Technologies Tecal RH2285, 2 x Xeon E5620 2.40GHz, 23.5GB / 24GB 1066MHz
System:         Huawei Technologies Tecal RH2285 (Huawei Technologies BC11BTSA)
Processors:     2 x Xeon E5620 2.40GHz 133MHz FSB (16 cores)
Memory:         23.5GB / 24GB 1066MHz == 6 x 4GB, 6 x empty
Disk:           sda (megaraid_sas0): 107GB (38%) JBOD == 1 x LSI-MegaRAID-SAS-RMB
Disk:           sdb (megaraid_sas0): 5.9TB (1%) JBOD == 1 x LSI-MegaRAID-SAS-RMB
Disk-Control:   megaraid_sas0: LSI Logic / Symbios Logic MegaRAID SAS 1078
Disk-Control:   ata_piix0: Intel 82801JI (ICH10 Family) 4 port SATA IDE Controller
Disk-Control:   ata_piix1: Intel 82801JI (ICH10 Family) 2 port SATA IDE Controller
Network:        host5 (bnx2-1): Broadcom NetXtreme II BCM5709 Gigabit Ethernet
Network:        host6 (bnx2-0): Broadcom NetXtreme II BCM5709 Gigabit Ethernet
Network:        eth0 (bnx2): 08:19:a6:24:3c:05, 1000Mb/s <full-duplex>
Network:        eth1 (bnx2): 08:19:a6:24:3c:05, 1000Mb/s <full-duplex>
OS:             RHEL Server 5.4 (Tikanga), Linux 2.6.18-164.el5 x86_64, 64-bit
BIOS:           AMI CTSAV035 12/07/2010
Hostname:       xxxxxx

##這個是非常詳細的模式, 瞭解到各個裝置的細節.
$ sudo hwconfig -x cfg.xml
$ less cfg.xml
<system code_version="1.16.7" hostname="dr4000" timestamp="1331966816" xml_version="1.0.1">
  <base_board manufacturer="Dell Inc." model="084YMW" serial="..CN137401C800C9." version="A05" />
  <bios date="10/21/2011" manufacturer="Dell Inc." pretty="Dell 1.9.0 10/21/2011" rev="1.9" version="1.9.0" />
  <chipsets summary="Intel 5500 IOH-24D B3 (Tylersburg), 82801JIR A0 (ICH10R)">
    <chipset handle="56" model="5500 IOH-24D" name="Tylersburg" pci="00:00.0" pci_handle="1" stepping="B3" type="Northbridge" vendor="Intel" />
    <chipset handle="57" model="82801JIR" name="ICH10R" pci="00:1f.0" pci_handle="19" stepping="A0" type="Southbridge" vendor="Intel" />
  </chipsets>
...
 <volume controller="scsi0" drive_write_cache="default" handle="75" name="sda" raid="RAID-0" read_ahead="adaptive" size="598879502336" spans="1" status="ok" stripe="65536">
      <drives>
        <drive>66</drive>
        <drive>67</drive>
      </drives>
      <read_cache enable="0" />
      <write_cache enable="0" policy="write-back" />
    </volume>
  </storage>
  <system manufacturer="Dell Inc." model="Dell DR4000" pretty="Dell DR4000" serial="8MCBB3X" uuid="4C4C4544-004D-4310-8042-B8C04F423358" version="" />
</system>

看著資訊還是很專業的，結果微博上有同學反映是個指令碼，我看了下原來hwconfig真的是個指令碼：

#!/usr/bin/perl -w

# $Id$

$ENV{PATH} = "/etc/bin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin:/usr/local/sbin:/home/opt:/opt/MegaRAID/MegaCli:/usr/StorMan";

use strict 'vars';
use Getopt::Std;
use POSIX;
...
$ cat `which hwconfig `|wc -l    
9101

挺佩服這幫人的，指令碼也能有這樣的耐心，寫這麼長。

祝大家玩得開心！

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