why exadata

/rdbms/lib/libknlopt. a/u01/app/oracle/rdbms/lib/kzlilbac. o Chmod 755/u01/app/oracle/bin -Linking Oracle Rm-f/u01/app/oracle/rdbms/lib/oracleGcc-o/u01/app/oracle/rdbms/lib/oracle-m32-z noexecstack-L/u01/app/oracle/rdbms/lib/-L/u01/app/ oracle/lib/-L/u01/app/oracle/lib/stubs/-L/u01/app/oracle/lib/-lirc-lipgo-Wl, -E/u01/app/oracle/rdbms/lib/opimai. o (Space reasons, omitted ......)-L/u01/app/oracle/libTest! -F/u01/app/oracle/bin/oracle | \Mv-f/u01/app/oracle/bin/oracle/u01/app/oracle/bin/LEO LeoM

PairSystem resource monitoring is a required skill for O M personnel From the OS perspective, including CPU/IO/Network/fs From the DB perspective, including active sessions/on CPU/disks/top segments/top SQL, etc. The utilization of database resources is also reflected at the OS level. Our goal is to make full and balanced use of OS computing resources. Among the many monitoring tools, the performance data types supported by collectl should be the most comprehensive Including IO/CPU/Network/nfs

Database hadoop loader, and r language. Oracle's investment in the big data field is far more than that. They not only launched Oracle Big Data appliance at the software level, but also Oracle exalytics at the hardware level. Exalytics targets big data. In-memory computing launched by Oracle provides massive information in the big data era, including structured, semi-structured, dataset, and unstructured data analysis. At the same time, exalytics also supports hybrid data sources, including Or

fusion data, that is, data blocksLocks resource lock request informationHeartbeat dataSCN InformationPrivate networks can only be used for the preceding purposes and cannot be used for other purposes.Network Protocol:Clusterware: TCP/IPRAC: UDPMulti-nic binding: Linux (bonding), Solaris (link aggregation), and Aix (etherchannel)Oracle recommends that the private network be configured with at least 1 GB of Network1. GB-level Ethernet Card2. InfiniBand (Oracle

maintained as physical; database "pdstby" addedConnected as SYSDBA. DGMGRL> enable configuration; Enabled. DGMGRL> show configuration; Configuration-pdprod Protection Mode: MaxPerformance Members: pdprod-Primary database pdstby-Physical standby database Fast-Start Failover: DISABLEDConfiguration Status: SUCCESS (status updated 5 seconds ago) Related posts: Recreate failovered primary database using Flashback Database Duplicate standby database from active database Solve the Problem of DGMG

. In fact, the TimesTen and Oracle Database In-Memory options are developed by the same group within Oracle, sharing the same innovative technology and underlying architecture.So will the Memory Database engine used In Exalytics become the Oracle Database In-Memory option In the future? There is no such plan. Oracle expects TimesTen to continue development.Will the Oracle Database In-Memory option replace Exadata? Of course not. This question is too n

, encryption, ASM on Exadata. PRM is an open Oracle Database restoration software. Users can freely download the Community edition and test almost all functions. Functions such as restoring data files and archiving files from the ASM Diskgroup are free and included in the Community edition. Using PRM becomes very simple. Anyone with a little Oracle technical knowledge can restore and save data, without the need to spend a lot of money to invite exper

other tools. On the day of shipment, Oracle announced that its new product would run Cloudera's Apache Hadoop implementation and management software. Tightly bound big data machines include Sun server hardware (18 Linux-based x86 Sun servers with 216 processor cores, GB of memory, and TB of raw hard disk space) and Oracle NoSQL database, open-source distribution of R statistics software, and Oracle Java HotSpot virtual machine copy. The big data machine provides 40 Gb InfiniBand access between

connections and reduce system resource consumption. Private Network: Oracle clusterware and instance use this network for communication.We recommend that you configure the network in redundancy mode for Oracle to bind two physical NICs. Even if one Nic is broken, the other Nic can still provide services, effectively avoiding single point of failure caused by Nic damage.Data transmitted on the private network includes:Cache fusion data, that is, data blocksLocks resource lock request information

. fusioncube integrates compute, distributed storage, networking, virtualization, cloud management software and integration. Not only achieve extremely high integration (space saving 50% above), but more crucially, it is based on x86 The architecture provides high performance, stability, and reliability, not only the core business deployment model of "minicomputer high end Storage" is completely overturned, but also far exceeds the performance of minicomputer and high-end storage, while the

The first two days of customer Exadata 12c environment due to memory allocation error, the following is the processing process.The node restarts with an error, but the other nodes start normally. Error content:ORA-27106 System pages not available toallocate memoryAlert content:Supported system pagesize (s):Fri APR 10 18:07:43 2015PAGESIZE available_pages expected_pages allocated_pages ERROR (s)Fri APR 10 18:07:43 20152048K 3079 8194 3076 ORA-27125The

A set of 11203 RAC ADG on Exadata machine environment in the previous time, ADG error was prompted during standby side query Node2, but the Dblink query was normal, DG's ora-1089 The process is on the Node1, and the confirmation is a simple bug record. --on standby node2, but on standby Node1 is workedSelect COUNT (*) from DBMT.DBMT_TABLEINFO@LINK_WEEJAR_A2. anbob.com; Ora-01089:immediate shutdown in progress-no operations are permittedProcess id:77

integration. InfiniBand aims to reduce deployed computing devices and deploy redundant computing devices in a homogeneous environment. In intensive infrastructure, InfiniBand supports several network protocols to provide services simultaneously through a single cable. Therefore, InfiniBand can provide flexible and high-performance network interconnection services in a highly virtualized computing environment. The InfiniBand Network is better than Ethernet in terms of bandwidth, latency, and ove

12CORA-27106 error handling process Two days ago, the customer Exadata 12c Environment reported an error due to memory allocation. The following is the processing process. An error is reported when the node is restarted, but other nodes are started normally. Error message: ORA-27106 System pages not available toallocate memory Alert content: Supported system pagesize (s ): Fri Apr 10 18:07:43 2015 PAGESIZE AVAILABLE_PAGES EXPECTED_PAGES ALLOCATED_PAGE

different locations for the two different executions. There may be exceptions, but as long as the ADDR resides in SGA, I 'd say it's the actual location of where the data lives-but when it's in UGA/PGA, itMayBe just the temporary cursor scratch area and the source data was taken from somewhere else (especially when the ADDR constantly changes or alternates between 2-3 different variants when running your X $ query ). note that there are X $ tables which intentionally read data from arrays in yo

How to get all the information related to the RAC cluster process using just one PS command.From the point of view of the command used is very simple, only need to use the PS command combined with grep command can be implemented. The key issue is determining which keywords to retrieve.1. Processes related to the RAC cluster1) General process of resident systemOcssd.binEvmd.binEvmlogger.binCrsd.binThese generic processes need to be started on a variety of platforms and database versions.2) Unique

OBSERVEROra.diskmon1 Online Online Rac1Ora.drivers.acfs1 Online Online Rac1Ora.evmd1 Online Online Rac1Ora.gipcd1 Online Online Rac1Ora.gpnpd1 Online Online Rac1Ora.mdnsd1 Online Online Rac1 for 11.2.0.2 and above, the following two additional processes are available: Ora.cluster_interconnect.haip1 Online Online Rac1Ora.crf1 Online Online Rac1 For Exadata systems above 11.2.0.3, Ora.diskmon will be in the offline state, as follows:Ora.diskmon1 OFFLI

Database Cache N N Y Extra Cost option Database Smart Flash Cache N N Y Solaris and Oracle Linux only Support for Oracle exadata Storage Server Software N N Y Security Oracle Advanced Security N N Y Extra Cost option Oracle Label Security N N Y Extra Cost option Virtual Private D

any default values.• If the value is "0" at the CDB and PDB levels, there is no I/O limit.• The critical I/O required for the normal function of the instance is unrestricted, but as long as the limit is involved, the total I/O is counted, so I/O may temporarily exceed the limit.• These parameters are only available for multi-tenancy architectures.• This feature is not available for Exadata.• Throttling will result in a wait event named I/O rate limit

weaker, which is why Exadata puts all the RAC nodes in the same cabinet), and the distance is too close to achieve real disaster recovery, such as power grids, typhoons, Floods, earthquakes and so on. Support for storage replication is also required, and the budget will be a big problem. DataGuard How long does it take to switch the high availability of disaster tolerant? In our existing customer environment, Dataguard is a disaster preparedness envi