如果伺服器有做磁碟陣列，那麼執行fdisk -l或者smartctl –all /dev/sda，得不到你要的磁碟資訊。可以藉助MegaClI命令，MegaClI命令系統不自帶，需要額外下載。

安裝完成，命令檢視硬碟資訊

[root@localhost Linux MegaCLI 8.07.10]# cd /usr/bin
[root@localhost bin]# /opt/MegaRAID/MegaCli/MegaCli64 -PDlist -aALL

Adapter #0

Enclosure Device ID: 252
Slot Number: 0
Drive's position: DiskGroup: 0, Span: 0, Arm: 0
 

Enclosure position: N/A
Device Id: 23
WWN: 5000C5007E156790
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: 558.911 GB [0x45dd2fb0 Sectors]
Non Coerced Size: 558.411 GB [0x45cd2fb0 Sectors]
Coerced Size: 558.406
 
 GB [0x45cd0000 Sectors]
Sector Size:  0
Logical Sector Size:  0
Physical Sector Size:  0
Firmware state: Online, Spun Up
Commissioned Spare : No
Emergency Spare : No
Device Firmware Level: 000B
Shield Counter: 0
Successful diagnostics completion on :  N/A
SAS Address(0): 0x5000c5007e156791
SAS Address(1): 0x0
Connected Port Number: 
 
1(path0) 
Inquiry Data: SEAGATE ST3600057SS     000B6SL9AQG9            
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:  Not Certified
Drive Temperature :47C (116.60 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