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linux主机监控信息显示
存储信息显示：
总体空间和空闲空间显示
[root@ora11g64 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
37G 15G 20G 43% /
/dev/sda1 99M 23M 71M 25% /boot
tmpfs 3.0G 0 3.0G 0% /dev/shm
Disk信息显示（名称/大小/使用率）
[root@ora11g64 ~]# fdisk -l
Disk /dev/sda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 5221 41833260 8e Linux LVM
Disk /dev/dm-0: 40.7 GB, 40701526016 bytes
255 heads, 63 sectors/track, 4948 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-0 doesn‘t contain a valid partition table
文件系统信息显示（名称/大小/使用率）
[root@ora11g64 ~]# df -k
文件系统 1K-块 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
38502208 15660604 20854228 43% /
/dev/sda1 101086 23531 72336 25% /boot
tmpfs 3057028 0 3057028 0% /dev/shm
主机上所有数据库名称显示
[oracle@ora11g64 ~]$ ps -ef|grep pmon
oracle 20281 1 0 11:12 ? 00:00:01 ora_pmon_ORA11G
oracle 22417 22377 0 11:41 pts/3 00:00:00 grep pmon
[oracle@ora11g64 ~]$ ps -ef|grep smon
oracle 20327 1 0 11:12 ? 00:00:01 ora_smon_ORA11G
oracle 22422 22377 0 11:41 pts/3 00:00:00 grep smon
[oracle@ora11g64 ~]$ cat /etc/oratab
#
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
# A colon, ‘:‘, is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, ‘#‘, are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
ORA11G:/u01/app/oracle/product/11.2.0/db_1:N
总体空间和空闲空间显示
[root@ora11g64 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
37G 15G 20G 43% /
/dev/sda1 99M 23M 71M 25% /boot
tmpfs 3.0G 0 3.0G 0% /dev/shm
Disk信息显示（名称/大小/使用率）
[root@ora11g64 ~]# fdisk -l
Disk /dev/sda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 5221 41833260 8e Linux LVM
Disk /dev/dm-0: 40.7 GB, 40701526016 bytes
255 heads, 63 sectors/track, 4948 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-0 doesn‘t contain a valid partition table
文件系统信息显示（名称/大小/使用率）
[root@ora11g64 ~]# df -k
文件系统 1K-块 已用 可用 已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
38502208 15660604 20854228 43% /
/dev/sda1 101086 23531 72336 25% /boot
tmpfs 3057028 0 3057028 0% /dev/shm
主机上所有数据库名称显示
[oracle@ora11g64 ~]$ ps -ef|grep pmon
oracle 20281 1 0 11:12 ? 00:00:01 ora_pmon_ORA11G
oracle 22417 22377 0 11:41 pts/3 00:00:00 grep pmon
[oracle@ora11g64 ~]$ ps -ef|grep smon
oracle 20327 1 0 11:12 ? 00:00:01 ora_smon_ORA11G
oracle 22422 22377 0 11:41 pts/3 00:00:00 grep smon
[oracle@ora11g64 ~]$ cat /etc/oratab
#
# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.
# A colon, ‘:‘, is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, ‘#‘, are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:<N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
ORA11G:/u01/app/oracle/product/11.2.0/db_1:N
linux主机监控信息显示
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