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Free SpaceTable (FST) FST indicates the free space contained in ATB. When the disk is allocated, ASM generates a disk FST. This allows ASM to skip the space occupied by ATBs. FST contains entries for each ATB. Each entry describes the total number of extents sizes and the number of idle extents. FST aims to optimize the allocation operation. In fact, FST is located in AllocationTable. FST is located in the
Environment Introduction:A total of two disk groups: CRS and Data;crs use normal redundancy; Data uses external redundancy.Add a new ASM disk procedure (slightly)1. Pre-migrationSql> Select Group_number, Failgroup, Name,path from V$asm_disk order by 1group_number Failgroup NA ME PATH-------------------------------------------------------------------------------------- --------------------------0/DEV/ASM
We know that you can create an ASM disk in the following ways, and then create a logical ASM disk group. Create the ASM disk as root user.#/etc/init.d/oracleasm Createdisk VOL1/DEV/SDC1Marking disk "/DEV/SDC1" as an ASM disk: [OK]#/etc/init.d/oracleasm Createdisk vol2/dev/sdd1Marking disk "/dev/sdd1" as an
How to quickly find and download the asm package on the OTN website? How to quickly find and download the asm package on the OTN website **************************************** ******************************** **************** Original works, from "Deep Blue blog" blog, welcome to reprint, reprint please be sure to indicate the source (http://blog.csdn.net/huangyanlong ). Please leave a message if the sta
Environment: OS: Red Hat Linux As 5DB: Oracle 10.2.0.4 10 Gb later, Oracle launched the Storage method managed by Using ASM (Auto Storage Management). As the Oralce version keeps changing, the ASM storage management method is becoming more and more stable. the following describes how to use ASM to create a single-instance database. -------------------------------
Old cainiao struggling oracle asm Author: Tian Yi (sery@163.com) from http:// B .formyz.org/2011/0726/46.htmlApplication Environment Description 1, hardware 1, server: 2 dell r610-16G memory, 2 6-core xeon cpu, 2 146 GB sas disk, raid12, storage: dell MD3220 24 5.52 GB hard drive 3. Storage connection: 6 GB memory card, two channels connected 2. Software 1. System: 64-bit centos, system kernel version: linux rac1 2.6.18-194. el5 #1 SMP Fri Apr 2 14:58
30. Start and close the ASM instance The ASM instance runs similar to other databases, but the default startup mount command is used instead of the startup command. In addition, we can also use startup restrict to temporarily prevent database instances from connecting to the ASM instance and installing the disk group. If people use the shutdown command on the
] oracle.sysman.assistants.util.sqlengine.sqlfatalerrorexception:ora-03113: End-of-file on communication channel As can be seen here, ASM instances cannot be logged (ORA-01012 and ORA-03113), and the ASM log is parsed based on such errors Reconfiguration complete Fri 24 12:49:29 2015 LCK0 started with pid=22, OS id=46913 Errors in File/u01/app/grid/diag/asm/+
For Oracle network configuration, we usually use negmgr or netca to connect the client to the database instance. You can also connect to the ASM instance from a client. However, Oracle does not provide a tool for us to complete the configuration. We can manually configure the listener and the client tnsnames. This section describes and provides examples. 1. server and client environments # server environment, host information Oracle @ bo2dbp: ~> CAT/
In the OracleRAC environment, run asmcmd with the grid account to enter the asm command mode, such as: [grid @ oradb-node1 ~] $ AsmcmdASMCMDgt; ASMCMD In the Oracle RAC environment, use the grid account to run asmcmd to enter the asm command mode, such as: [grid @ oradb-node1 ~] $ Asmcmd ASMCMDgt; ASMCMD In the Oracle RAC environment, run Run asmcmd to enter the as
Welcome to the Oracle community forum and interact with 2 million technical staff. There are many discussions about ASM, but what is ASM? ASM is an effective abstraction layer that enables your Oracle database to be used together with an abstract space called diskgroups, rather than directly using datafiles. This brings many benefits, but it also requires learnin
Label:For disks that are managed with ASM, you need a means to consistently identify disk devices and their proper owning relationships and permissions. In a Linux system, you can use Asmlib to perform this task, but the disadvantage of doing so is to add an extra layer to the operating system, which leads to the complexity of management, and the way to configure ASM with Asmlib is now no longer popular. An
I. The following error is reported when 10gRAC uses DBCA to reconstruct asm:The ASM instance configured on the local node is a single-instance ASM. to create a single-instance database using this ASM instance, restart DBCA and select the single-instance database option, to create a RAC database using this ASM instance,
In the event you cannot mount your ASM disk groups, you will be unable to start any databases using those disk groups. Here is a possible error reported when mounting ASM disk groups: SQL> startup Mount ORA-15032: not all alterations saved medORA-15063: diskgroup " This error may occur if:A) ASM disk (s) is not visible on the operating system.B) asm_diskstring pa
I. Management of ASM files 1. ASM file Overview: The names of ASM files are different from those of common files. The names of their files are not directly specified. And the management method is OMF. If specified, the file management method is no longer OMF. When the ASM file name is used: A. reference the
There is a friend in a storage space for ASM use, there is insufficient space, and then use another storage LUN to the ASM Data Disk group to increase ASM disk, run for about 1 days after the ASM disk group directly dismount, Database crash. And then you can't mount it properly. Several other disk groups, including thi
ASM: Automatic Storage Management is a practical solution strongly recommended by Oracle for Oracle database Storage. Oracle ASM is very similar to RDBMS, and Oracle ASM is also composed of files and instances, you can also use the sqlplus tool for maintenance. You can also use the DBCA command to create and delete an ASM
switch to the configuration file directory[Email protected] ~]# CD/ETC/UDEV/RULES.DDefine the necessary rule profiles[email protected] rules.d]# Touch 99-oracle-asmdevices.rules[email protected] rules.d]# cat 99-oracle-asmdevices.ruleskernel== "sd*", bus== "scsi", program== "/sbin/scsi_id-g-u-s%p", result== "1iet_00010001", name= "OCR1", owner= "grid", Group= "Asmadmin", mode= "0660"kernel== "sd*", bus== "scsi", program== "/sbin/scsi_id-g-u-s%p", result== "1iet_00010002", name= "Ocr2", owner= "
Free spacetable (FST)FST indicates the free space contained in the ATB. ASM generates a disk FST when the disk is selected for assignment. This allows ASM to skip the space occupied by the ATBs. FST contains entries for each ATB. Each entry describes the total number of extents size and the idle extents. The purpose of FST is to optimize allocation operations. In fact FST is located in Allocationtable. The
Starting with Oracle 11GR2, GI integrated Asm,ocr/votedisk is also housed in ASM disk groups (11GR2 previously needed to be stored in bare devices), and ASM has a much greater capability than 10g.Let's first introduce a problem: in 11gr2, Ocr/votedisk is stored in ASM Disk group, which means that the GI can start with
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