Linux下如何确认磁盘是否为SSD

flyfish 2023年01月21日程序员 1423 0

方法

法1：通过查看/sys/block/sda/queue/rotational

通过cat /sys/block/sda/queue/rotational进行查看，返回值0即为SSD；返回1即为HDD。

法2：通过lsscsi查看

lsscsi - list SCSI devices (or hosts) and their attributes

实例

HDD

[root@ssd-test thatsit]# cat /sys/block/sda/queue/rotational 
1 
[root@ssd-test thatsit]# lsscsi 
[0:0:32:0] enclosu DP BP12G+ 1.00 - 
[0:2:0:0] disk DELL PERC H310 2.12 /dev/sda 
[root@ssd-test thatsit]#

SSD

[root@hdd-test thatsit]# cat /sys/block/sda/queue/rotational 
0 
[root@hdd-test thatsit]# lsscsi 
[0:0:0:0] disk ATA INTEL SSDSC2BX48 0150 - 
[0:0:1:0] disk ATA INTEL SSDSC2BX48 0150 - 
[0:1:0:0] disk LSI Logical Volume 3000 /dev/sda 
[root@hdd-test thatsit]#