Implement one of these tuning methods as suitable for the installation environment. This update allows changes to sharedmemory parameters within solaris 10. In solaris 10, you need to use resource controls to expand the shared memory beyond the default. See the prctl 1 man page for more information how to use the prctl command to display default resource control values. Setting kernel and project parameters for oracle on solaris 10. Often, these difficulties are experienced before starting an application instance. When configuring a new system, it is recommended that they be used, even though the etcsystem settings are still available. Setting kernel parameters in solaris 10 hi guys, prior to the installation of ibm db2 database on solaris 10, i need to set the following parameters. Solaris 10 kernal parameters for oracle software, 270407. This mechanism allows controlling resource for each and every process which is big advantage in system administration. Solaris 10s resource management one of the best known features in solaris is resource management. Nope, that wont work on solaris 10, they are noops. Refer to solaris 10 and solaris 11 tuning using etcproject.
Beginning with solaris 10 update 10 solaris 10 811 or solaris 10 with kernel patch 14450019 sparc 14450119 x86 or higher, setting the priv level for process. If applications, other than the oracle instances are using the shared memory segment, then you must add that shared memory usage to the. Refer to solaris 10 container documentation for further information when you install tivoli netcool performance manager, you specify the size of the deployment small, medium, or large. On a solaris 10 or later system, it can be verified as shown below. Implementing shared memory resource controls on solaris. The following may be of use regarding the values required for shared memory in a solaris 10 media server. Ipcs command for shared memory and semaphore in solaris. Reboot system in order to have it read settings in etcsystem. Solaris 10s resource management and shell limitulimit unixarena. Dynamic sga tuning of oracle database on oracle solaris with dism. With this in mind, a speciallytuned variant of system v shared memory was introduced in oracle solaris many years ago, called intimate shared memory ism. Since solaris default values are higher than oracle recommended values, the only resource control that might need to be set is project. In previous releases of the solaris operating system, editing etcsystem was the recommended way to increase the values of a given ipc tunable. For shared memory settings and solaris system tuning, see parameters for solaris in chapter 10.
Youre already using projects to set the semaphore and shared memory settings here in. How to configure shared memory parameters in solaris 10,11. Before oracle solaris 10, an oracle database could not be started without changes to. How to check currently using semaphores in solaris. These patches fix a problem cr 6911915 where basic and. When a system is upgraded from an old solaris version, the etcsystem settings may still be present, so it is important to. It is best to use only 1 method to configure shared memory.
How to configure maximum number of open files per process. I am providing below commands which might help find out the resources assigned to solaris zones. Depending on the number and types of devices used for backup dump and recovery load, you may need to adjust the shared memory segment parameter in the operating system configuration file to accommodate concurrent backup server processes. From the directories that are not lofs shared from the global zone, the. Many system administrators, particularly those managing large database servers, have had difficulty tuning shared memory and semaphore parameters in etcsystem. Dynamic sga tuning of oracle database on oracle solaris. How to add swap space to solaris zone without reboot. Out of memory problems on oracle 10 solaris 10 akadia. With the availability of the solaris 10 operating system, the way ipc facilities e. This procedure must be used on a system on which no resource controls have been set. Troubleshooting performance issues is an important skill every system admin must have. All shared memory and semaphore settings are now handled via resource controls, so any entries regarding shared memory or. But in solaris 10, we can easily manage shell limits using simple prctl command. Operating systems solaris kernel parameters in solaris 10 post 3022577 by pressy on friday 17th of august 2007 12.
The solaris 10 1 kernel patch, 14714726 sparc 14714826 x86 post solaris 10 1 kernel patches have the patchids 148888xx sparc 148889xx x86 please note that there are no more planned updates to solaris 10, so these latest kernel patchids 148888xx sparc 148889xx x86 will continue to be used for the foreseeable future. This post is intended to give hints, where to look for in checking and troubleshooting memory usage. Solaris 10 kernel patch install instructionislamic. In principle, investigation of memory usage is split in checking usage of kernel memory and user memory. This also helps me to figure out when it is time to increase the memory of the zone.
How to view the kernel shmmax paramiter value in solaris 10. How to check and analyze memory usage in solaris the. Using the prctl command oracle solaris administration. Since shared memory is very heavily used in oracle database environments, it is important to optimize access to it and to minimize the amount of cpu consumed while referring to it. This document is based on the first customer release of solaris 10. Checking shared memory resource controls oracle docs. Oracle solaris 10 uses the resource control facility for its implementation. On solaris 10 and later, this value can be changed dynamically on a per project basis with the help of resource control facilities. Commands to find out allocated cpumemory on a solaris zone. Newer versions of solaris use resource control settings to configure shared memory.
Here is the procedure we followed to modify the kernel parameters on solaris 10 oracle 10. If using solaris 10 containers, typically the variable in etcsystem is set only in the root container, and project variables are set for each container. This product was built on solaris 10 using the following compilers from oracle solaris studio 12. But you must read the manual as this is quite complicated when using zones andor projects as an example for solaris 11 for the current running global zone. Checking shared memory resource controls use the prctl command to make runtime interrogations of and modifications to the resource controls associated. How to find shared memory limits and semaphore limits in. Use the prctl command to make runtime interrogations of and modifications to the resource controls associated with an active process, task, or project on the system. The solaris 10 operating system introduces the following new resource controls to replace the old etcsystem tunables. Solaris 10 kernal parameters for oracle software oracle doc is inaccurate and misleading. Please be aware that in case of a memory usage problem on a system, corrective actions usually requires.
For solaris, 8m is the default value on solaris 9 and prior versions where as 14th of the physical memory is the default on solaris 10 and later. View and change kernel parameter values on solaris 10 to view the current values of the resource control, enter. Informix server uses solaris ism for shared memory segments that are forced to. Is there a way to find the capped memory of a solaris non global zone from the non global zone itself given rcapd is disabled solaris. Im using the following commands to find shared memory limits and semaphore limits in linux. Osrelated tuning factors for unix and linux, in the netbackup planning and performance tuning guide last updated for netbackup 7. For correct operation of dism, solaris patch 11700005 must be installed. Currently there was 30gb of max shared memory and we would like to add another 20gb and here is the command. For admins it might get a bit tricky to find out the memory cpu allocated on such zones. Solaris 10s resource management and shell limitulimit. Ism shared memory is automatically locked by the oracle solaris kernel when the.
The prctl command can be run at any time, and takes effect immediately. In this example a zone with 512mb memory was using almost 100% so i decided to increase the zones memory to 1gb. The solaris tm 10 operating system addresses this issue by integrating the system v ipc tunables into a powerful and flexible framework for easy. Solaris 10 only uses the semmni maxsemids, semmsl mxsemnsems and semopm maxsemops parameters as other parameters are dynamic within the solaris 10 ipc model. Solaris 10 1 patchset released and latest solaris 10. Set resource controls using projects instead of ulimit1.
An alternative is to use the projmod command to modify the attribute value for project. For solaris 10 and solaris 11 you can use prctl command. Oracle solaris containersresource management and oracle solaris zones guide. Checking shared memory resource controls use the prctl command to make runtime interrogations of and modifications to the resource controls associated with an active process, task, or project on the system. Use the prctl command to make runtime interrogations of and modifications to the. The ora 11 install guide for spark solaris 10 is very confusing wrt shared memory and my system does not seem to using memory correctly, lots of swapping on an 8gb real memory system. Speaking of solaris, solaris 10 introduces projects, so solutions for 10 and 10 will be different. Some of the prctl commands most of the times, we get email from oracle team to modify some of the project setting. How to view the kernel shmmaxparamiter value in solaris 10. How to configure shared memory parameters in solaris 10,11 the. Command to make it permanentby updating etcproject. Many kernel parameters have been replaced by so called resource controls in solaris 10. It is possible to change resource controls using the prctl command. Adjusting the operating system shared memory parameters.
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