shm file

we often df–th check the disk capacity in daily operation, so what is the role of /dev/shm ? $ df-th File system type capacity used available % mount point /dev/sda2 ext3 57G 32G 23G 59%/ /dev/sda5 ext3 476G 341G 111G

Excerpt from: http://miaozk2006.blog.163.com/blog/static/3824705820111028183996/First,/dev/shm/Introduction:/dev/shm/is a very useful directory for Linux because it is not on the hard disk, but in memory. Therefore, under Linux, it is not necessary

Oracle11g AMM memory management mode is to use devshm, so sometimes modify MEMORY_TARGET or MEMORY_MAX_TARGET will have a ORA-00845 error, in the security Oracle 11g AMM memory management mode is to use/dev/shm, so sometimes modify MEMORY_TARGET or

One,/DEV/SHM concept /DEV/SHM is a TMPFS file system, a temporary file system, is a memory-based file system, which means that files in/dev/shm are written directly into memory without taking up hard disk space. Under CentOS and Redhat,

Use the Linux server/dev/shm/to release the disk pressure Browse:646 | Updated: 2013-06-18 18:08 | Tags: disk TMPFS is a memory-based file system on the Linux/unix system. TMPFS can use your memory or swap partition to

/DEV/SHM The Oracle instance should be set to start without reporting ORA-00845From: Ora-00845-which value FOR/DEV/SHM is needed to startup database without ORA-00845 (document ID 1399209.1)Suitable for:Oracle Database-standard edition-version 11.1.0

First,/dev/shm theory The kernel configuration in the default Linux distribution will open Tmpfs and map to the SHM directory under/dev/. You can view the results through the DF command. /dev/shm/is the next most useful directory for Linux because

/Dev/shm should set how large the Oracle instance is to be started before reporting ORA-00845 /Dev/shm should set how large the Oracle instance is to be started before reporting ORA-00845Source: ORA-00845-Which value for/dev/shm is needed to startup

Introduction:Using the DF command in Linux or UNIX to view the file system will find information similar to the following (ubuntu12.04)Part of it is the Tmpfs file system, hanging under/rum, and a none file system hangs under/RUN/SHM.What is

/dev/shm/is a very useful directory for Linux because it is not on the hard disk, but in memory. Therefore, under Linux, it is not necessary to build RAMDisk, the direct use of/dev/shm/can achieve a good optimization effect.One of the/dev/shm/needs