linux 下查看硬盘型号、大小等信息，机器有没有做Raid有关系一、普通模式(该机硬盘没有做磁盘阵列)1、fdisk -l 查看你的硬盘编号，如sda,sdb 等2、smartctl --

一、普通模式(该机硬盘没有做磁盘阵列)

1、fdisk -l 查看你的硬盘编号，如sda,sdb 等

2、smartctl --all /dev/sda

smartctl --all /dev/sda #该命令centos自带

[root@localhost ~]# smartctl --all /dev/sda

smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-504.el6.x86_64] (local build)

Copyright (C) 2002-12 by Bruce Allen,

=== START OF INFORMATION SECTION ===

Device Model:

SanDisk SD6SB1M128G1022I

Serial Number: 141218410909

LU WWN Device Id: 5 001b44 becdaed9d

Firmware Version: X231600

User Capacity: 128,035,676,160 bytes [128 GB]

Sector Size:

512 bytes logical/physical

Device is:

Not in smartctl database [for details use: -P showall]

ATA Version is: 8

ATA Standard is: ATA-8-ACS revision 6

Local Time is: Fri Jan 16 08:35:48 2015 CST

SMART support is: Available - device has SMART capability.

SMART support is: Enabled

从上面可以看出，硬盘型号为SanDisk SD6SB1M128G1022I，容量为128GB

二、磁盘阵列 RAID模式

如果该机有做磁盘阵列，那么运行上述命令会报错，得不到你要的磁盘信息。可以借助MegaCli命令

MegaCli命令系统不自带，，需要额外下载，

下载地址：

%20Controllers/RAID%20Controllers%20Common%20Files/8.07.14_MegaCLI.zip

下载之后解压，

unzip CSA1.5-MegaCli_REL80571.zip

cd MegaCLI/MegaCli_Linux

rpm -ivh MegaCli-8.05.71-1.noarch.rpm

安装完成

ln -s /opt/MegaRAID/MegaCli/MegaCli64 /usr/bin/

默认安装在/opt下面，建立软链到/usr/bin

[root@localhost bin]# /opt/MegaRAID/MegaCli/MegaCli64 -PDlist -aALL

Adapter #0

Enclosure Device ID: 32

Slot Number: 0

Drive's position: DiskGroup: 0, Span: 0, Arm: 0

Enclosure position: 1

Device Id: 0

WWN: 50000C0F02E57BE9

Sequence Number: 2

Media Error Count: 0

Other Error Count: 0

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SAS

Raw Size: 279.396 GB [0x22ecb25c Sectors]

Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]

Coerced Size: 278.875 GB [0x22dc0000 Sectors]

Sector Size: 0

Firmware state: Online, Spun Up

Device Firmware Level: D1S6

Shield Counter: 0

Successful diagnostics completion on : N/A

SAS Address(0): 0x50000c0f02e57bea

SAS Address(1): 0x0

Connected Port Number: 0(path0)

Inquiry Data: WD

WD3001BKHG

D1S6WX11E83NU249

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None

Device Speed: 6.0Gb/s

Link Speed: 6.0Gb/s

Media Type: Hard Disk Device

Drive Temperature :31C (87.80 F)

PI Eligibility: No

Drive is formatted for PI information: No

PI: No PI

Port-0 :

Port status: Active

Port's Linkspeed: 6.0Gb/s

Port-1 :

Port status: Active

Port's Linkspeed: Unknown

Drive has flagged a S.M.A.R.T alert : No

Enclosure Device ID: 32

Slot Number: 1

Drive's position: DiskGroup: 0, Span: 0, Arm: 1

Enclosure position: 1

Device Id: 1

WWN: 50000C0F028F32ED

Sequence Number: 2

Media Error Count: 0

Other Error Count: 0

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SAS

Raw Size: 279.396 GB [0x22ecb25c Sectors]

Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]

Coerced Size: 278.875 GB [0x22dc0000 Sectors]

Sector Size: 0

Firmware state: Online, Spun Up

Device Firmware Level: D1S6

Shield Counter: 0

Successful diagnostics completion on : N/A

SAS Address(0): 0x50000c0f028f32ee

SAS Address(1): 0x0

Connected Port Number: 1(path0)

Inquiry Data: WD

WD3001BKHG

D1S6WX11E83VD242

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None

Device Speed: 6.0Gb/s

Link Speed: 6.0Gb/s

Media Type: Hard Disk Device

Drive Temperature :31C (87.80 F)

PI Eligibility: No

Drive is formatted for PI information: No

PI: No PI

Port-0 :

Port status: Active

Port's Linkspeed: 6.0Gb/s

Port-1 :

Port status: Active

Port's Linkspeed: Unknown

Drive has flagged a S.M.A.R.T alert : No

Enclosure Device ID: 32

Slot Number: 2

Drive's position: DiskGroup: 0, Span: 0, Arm: 2

Enclosure position: 1

Device Id: 2

WWN: 50000C0F02E5B8ED

Sequence Number: 2

Media Error Count: 0

Other Error Count: 0

Predictive Failure Count: 0

Last Predictive Failure Event Seq Number: 0

PD Type: SAS

Raw Size: 279.396 GB [0x22ecb25c Sectors]

Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]

Coerced Size: 278.875 GB [0x22dc0000 Sectors]

Sector Size: 0

Firmware state: Online, Spun Up

Device Firmware Level: D1S6

Shield Counter: 0

Successful diagnostics completion on : N/A

SAS Address(0): 0x50000c0f02e5b8ee

SAS Address(1): 0x0

Connected Port Number: 2(path0)

Inquiry Data: WD

WD3001BKHG

D1S6WX11E83NU081

FDE Capable: Not Capable

FDE Enable: Disable

Secured: Unsecured

Locked: Unlocked

Needs EKM Attention: No

Foreign State: None

Device Speed: 6.0Gb/s

Link Speed: 6.0Gb/s

Media Type: Hard Disk Device

Drive Temperature :28C (82.40 F)

PI Eligibility: No

Drive is formatted for PI information: No

PI: No PI

Port-0 :

Port status: Active

Port's Linkspeed: 6.0Gb/s

Port-1 :

Port status: Active

Port's Linkspeed: Unknown

Drive has flagged a S.M.A.R.T alert : No

Exit Code: 0x00

从上面可以看出，该机有三块硬盘，型号为，

WD      WD3001BKHG      D1S6WX11E83NU249，容量为300GB。