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Solaris
shared memory in solaris 10 with oracle
Post 302488949 by kris123456@gmai on Wednesday 19th of January 2011 12:24:12 AM
01-19-2011
shared memory in solaris 10 with oracle
Hi, I am a newbie to solaris and i have some questions on shared memory, Oracle in Solaris
My Questions might seem different, however please do read and try to answer. Thanks in advance.
1) if a solaris server has say 40gb of Ram, what would be the maximum size of a shared memory segment in this machine?
I know that if the server has 40GB. then max shared memory size is 10GB i.e. one fourth of ram, however not sure
2) What is the maximum size of a shared memory segment in solaris that a root user can define.
+ i know that its some where near 14 GB not very sure +
3) Assume i have created a user X and i allocated say 10GB limit for this user for shared memory.
I login to solaris using X and now, can i increase the size of the shared memory that this user can use?
I have a situation, where the root user, created a user named DBA and the root user allocated some 15gb for this DBA user as the max SHM limit.
Now the DBA user has set the max limit for shared memory as 1TB, which is causing hell of problems in the system.
* I am Not very sure on the concept. I am new to this product and facing this problem. please advice.*
My Questions might seem different, however please do read and try to answer. Thanks in advance.
1) if a solaris server has say 40gb of Ram, what would be the maximum size of a shared memory segment in this machine?
I know that if the server has 40GB. then max shared memory size is 10GB i.e. one fourth of ram, however not sure
2) What is the maximum size of a shared memory segment in solaris that a root user can define.
+ i know that its some where near 14 GB not very sure +
3) Assume i have created a user X and i allocated say 10GB limit for this user for shared memory.
I login to solaris using X and now, can i increase the size of the shared memory that this user can use?
I have a situation, where the root user, created a user named DBA and the root user allocated some 15gb for this DBA user as the max SHM limit.
Now the DBA user has set the max limit for shared memory as 1TB, which is causing hell of problems in the system.
* I am Not very sure on the concept. I am new to this product and facing this problem. please advice.*
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LEARN ABOUT SUNOS
install-solaris
install-solaris(1M) install-solaris(1M) NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)