smartctl 监控ssd磁盘

1. 查看本机scsi 接口

[root@data04 ~]# smartctl --scan
/dev/sda -d scsi # /dev/sda, SCSI device
/dev/sdb -d scsi # /dev/sdb, SCSI device
/dev/bus/0 -d megaraid,9 # /dev/bus/0 [megaraid_disk_09], SCSI device
/dev/bus/0 -d megaraid,10 # /dev/bus/0 [megaraid_disk_10], SCSI device
/dev/bus/0 -d megaraid,11 # /dev/bus/0 [megaraid_disk_11], SCSI device
/dev/bus/0 -d megaraid,12 # /dev/bus/0 [megaraid_disk_12], SCSI device
/dev/bus/0 -d megaraid,13 # /dev/bus/0 [megaraid_disk_13], SCSI device
/dev/bus/0 -d megaraid,14 # /dev/bus/0 [megaraid_disk_14], SCSI device
/dev/bus/0 -d megaraid,15 # /dev/bus/0 [megaraid_disk_15], SCSI device
/dev/bus/0 -d megaraid,16 # /dev/bus/0 [megaraid_disk_16], SCSI device
/dev/bus/0 -d megaraid,17 # /dev/bus/0 [megaraid_disk_17], SCSI device
/dev/bus/0 -d megaraid,18 # /dev/bus/0 [megaraid_disk_18], SCSI device
/dev/bus/0 -d megaraid,19 # /dev/bus/0 [megaraid_disk_19], SCSI device
/dev/bus/0 -d megaraid,20 # /dev/bus/0 [megaraid_disk_20], SCSI device

第一列是设备标识

第二列是 设备raid 型号

[第三列] 是具体号码

相关链接 

2. 使用命令获取 硬盘指标

smartctl -a -d megaraid,16 /dev/bus/0

3. 核心指标解读

232 Available_Reservd_Space 0x0033   099   099   010    Pre-fail  Always       -       0   SSD 磁盘剩余擦写寿命