Shulou(Shulou.com)06/01 Report--

I. Environment

Oracle 11.2.0.4

Rhel 6.6

2. Modify tmpfs

After the database installation is complete, many parameters need to be modified, including database parameters and system parameters, and the operating system must modify one of the parameters.

Make changes according to 60% to 80% of the operating system.

[root@roidb01] # df-h

Filesystem Size Used Avail Use% Mounted on

/ dev/sda3 36G 17G 18G 49% /

Tmpfs 2.0G 235M 1.8G 12% / dev/shm

/ dev/sda1 190M 32M 149M 18% / boot

[root@roidb01] # free-m

Total used free shared buffers cached

Mem: 3959 1253 2706 238 28 857

-/ + buffers/cache: 367 3592

Swap: 4095 0 4095

[root@roidb01 ~] #

[root@roidb01 ~] #

[root@roidb01 ~] #

[root@roidb01 ~] # vi / etc/fstab

#

# / etc/fstab

# Created by anaconda on Fri Sep 15 15:36:11 2017

#

# Accessible filesystems, by reference, are maintained under'/ dev/disk'

# See man pages fstab (5), findfs (8), mount (8) and/or blkid (8) for more info

#

UUID=c554e888-d7c8-4954-9cde-51638abe23b7 / ext4 defaults 1 1

UUID=73078377-c31b-4bd8-8bd6-652fae65a5b8 / boot ext4 defaults 1 2

UUID=766af6f8-99a2-4915-9f64-b8e96fbb4404 swap swap defaults 0

Tmpfs / dev/shm tmpfs defaults,size=3000m 00

Devpts / dev/pts devpts gid=5,mode=620 0 0

Sysfs / sys sysfs defaults 0 0

Proc / proc proc defaults 0 0

~

~

~

"/ etc/fstab" 15L, 805C written

[root@roidb01] # mount-o remount / dev/shm

[root@roidb01] # df-h

Filesystem Size Used Avail Use% Mounted on

/ dev/sda3 36G 17G 18G 49% /

Tmpfs 3.0G 236M 2.7G 8% / dev/shm

/ dev/sda1 190M 32M 149M 18% / boot

[root@roidb01 ~] #

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