Linux下snmpd.conf说明及扩展监控disk

在snmpd.conf中采用disk关键字来监控系统运行的进程，格式如下：disk PATH [MIN=100000]# PATH: mount path to the disk in question.# MIN: Disks with space below this value will have the Mib's errorFlag set. Default value = 100000(100megs).代理将监视指定文件系统，并判断其可用总磁盘空间是否小于minumum,默认的minumum为100Mbminumum值可是设置为百分比，例如30%.配置示例：在配置文件中添加：disk / 10000000 #监控/，预设最小可用空间为10G；disk /boot 30% #监控/boot，预设最小可用空间为30%；disk /dev/shm #监控/dev/shm，不预设最小可用空间；（注：只是监控mount点，不是目录，可以用df查看mount点）MIB包含df命令所包含的所有信息具体的OID为：root(.)->iso(1)->org(3)->dod(6)->internet(1)->private(4)->enterprises(1)->ucdavis(2021)->9也就是：.1.3.6.1.4.1.2021.9# snmpwalk -v2c -cpublic 192.168.1.21 1.3.6.1.4.1.2021.9UCD-SNMP-MIB::dskIndex.1 = INTEGER: 1 #监控的mount点索引IDUCD-SNMP-MIB::dskIndex.2 = INTEGER: 2UCD-SNMP-MIB::dskIndex.3 = INTEGER: 3UCD-SNMP-MIB::dskPath.1 = STRING: / #监控的mount点UCD-SNMP-MIB::dskPath.2 = STRING: /bootUCD-SNMP-MIB::dskPath.3 = STRING: /dev/shmUCD-SNMP-MIB::dskDevice.1 = STRING: /dev/mapper/vg_centos60a-lv_root #监控mount点的文件系统UCD-SNMP-MIB::dskDevice.2 = STRING: /dev/sda1UCD-SNMP-MIB::dskDevice.3 = STRING: tmpfsUCD-SNMP-MIB::dskMinimum.1 = INTEGER: 10000000 #预设的最少可空间值，如没有设置默认为100M,如设置的为百分比，则为-1;UCD-SNMP-MIB::dskMinimum.2 = INTEGER: -1UCD-SNMP-MIB::dskMinimum.3 = INTEGER: 100000UCD-SNMP-MIB::dskMinPercent.1 = INTEGER: -1 #预设的最少可空间值，如设置的为实际值，则为-1;UCD-SNMP-MIB::dskMinPercent.2 = INTEGER: 30UCD-SNMP-MIB::dskMinPercent.3 = INTEGER: -1UCD-SNMP-MIB::dskTotal.1 = INTEGER: 10845100 #总空间UCD-SNMP-MIB::dskTotal.2 = INTEGER: 495844UCD-SNMP-MIB::dskTotal.3 = INTEGER: 255784UCD-SNMP-MIB::dskAvail.1 = INTEGER: 9581368 #可用空间UCD-SNMP-MIB::dskAvail.2 = INTEGER: 442608UCD-SNMP-MIB::dskAvail.3 = INTEGER: 255784UCD-SNMP-MIB::dskUsed.1 = INTEGER: 712820 #已用空间UCD-SNMP-MIB::dskUsed.2 = INTEGER: 27636UCD-SNMP-MIB::dskUsed.3 = INTEGER: 0UCD-SNMP-MIB::dskPercent.1 = INTEGER: 7 #已用空间百分比UCD-SNMP-MIB::dskPercent.2 = INTEGER: 6UCD-SNMP-MIB::dskPercent.3 = INTEGER: 0UCD-SNMP-MIB::dskPercentNode.1 = INTEGER: 3 #node已用百分比UCD-SNMP-MIB::dskPercentNode.2 = INTEGER: 0UCD-SNMP-MIB::dskPercentNode.3 = INTEGER: 0UCD-SNMP-MIB::dskTotalLow.1 = Gauge32: 10845100 #可设置可用空间预设值（与dskTotal相当，但不一定完全相等）UCD-SNMP-MIB::dskTotalLow.2 = Gauge32: 495844UCD-SNMP-MIB::dskTotalLow.3 = Gauge32: 255784UCD-SNMP-MIB::dskTotalHigh.1 = Gauge32: 0UCD-SNMP-MIB::dskTotalHigh.2 = Gauge32: 0UCD-SNMP-MIB::dskTotalHigh.3 = Gauge32: 0UCD-SNMP-MIB::dskAvailLow.1 = Gauge32: 9581368 #还可分配空间（与dskAvail相当，但不一定完全相等）UCD-SNMP-MIB::dskAvailLow.2 = Gauge32: 442608UCD-SNMP-MIB::dskAvailLow.3 = Gauge32: 255784UCD-SNMP-MIB::dskAvailHigh.1 = Gauge32: 0UCD-SNMP-MIB::dskAvailHigh.2 = Gauge32: 0UCD-SNMP-MIB::dskAvailHigh.3 = Gauge32: 0UCD-SNMP-MIB::dskUsedLow.1 = Gauge32: 712820 #已用分配空间（与dskUsed相当，但不一定完全相等）UCD-SNMP-MIB::dskUsedLow.2 = Gauge32: 27636UCD-SNMP-MIB::dskUsedLow.3 = Gauge32: 0UCD-SNMP-MIB::dskUsedHigh.1 = Gauge32: 0UCD-SNMP-MIB::dskUsedHigh.2 = Gauge32: 0UCD-SNMP-MIB::dskUsedHigh.3 = Gauge32: 0UCD-SNMP-MIB::dskErrorFlag.1 = INTEGER: error(1) //是否超出了预设范围UCD-SNMP-MIB::dskErrorFlag.2 = INTEGER: noError(0)UCD-SNMP-MIB::dskErrorFlag.3 = INTEGER: noError(0)UCD-SNMP-MIB::dskErrorMsg.1 = STRING: /: less than 10000000 free (= 9581368) //出错信息UCD-SNMP-MIB::dskErrorMsg.2 = STRING:UCD-SNMP-MIB::dskErrorMsg.3 = STRING:

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