Ubuntu系统下查看硬盘信息的方法，可以查看到硬盘的型号、序列号、接口类型，转速，缓存等，这里记录一下。
方法一：直接通过内核查看
$ cat /sys/block/sda/device/model
ST31000524AS
$ cat /sys/block/sda/device/vendor
ATA
方法二：用过hdparm命令查看
$ sudo hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: ST31000524AS
Serial Number: 9VPF38YC
Firmware Revision: JC45
Transport: Serial, SATA Rev 3.0
Standards:
这里省略大量信息
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 1949396401
Logical/Physical Sector size: 512 bytes
device size with M = 1024*1024: 951853 MBytes
device size with M = 1000*1000: 998090 MBytes (998 GB)
cache/buffer size = unknown
Nominal Media Rotation Rate: 7200
Capabilities:
LBA, IORDY(can be disabled)
这里省略大量信息
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* 这里省略大量信息
* SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
supported: enhanced erase
164min for SECURITY ERASE UNIT. 164min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000c5003fc5c146
NAA : 5
IEEE OUI : 000c50
Unique ID : 03fc5c146
Checksum: correct
可以发现，通过这种方法，看到的信息很全面，连硬盘型号，序列号，容量，接口，转速全都看到了。
方法三：通过lsscsi工具查看
$ sudo aptitude install lsscsi
$ lsscsi --device
[0:0:0:0] disk ATA ST31000524AS JC45 /dev/sda[8:0]
[4:0:0:0] cd/dvd ATAPI DVD A DH16ABS PC21 /dev/sr0[11:0]
$ lsscsi --list
这里省略大量信息
方法四：通过scsitools工具查看
$ sudo aptitude install scsitools
$ sudo scsiinfo -l
/dev/sda
$ sudo scsiinfo -c /dev/sda
Data from Caching Page
----------------------
Write Cache 1
Read Cache 1
Prefetch units 0
Demand Read Retention Priority 0
Demand Write Retention Priority 0
Disable Pre-fetch Transfer Length 0
Minimum Pre-fetch 0
Maximum Pre-fetch 0
Maximum Pre-fetch Ceiling 0
scsitools查看到的信息比较高大上，直接看不太懂。