6 network tuning for redo data transmission

... Network Tuning for Redo Data Transmission Managing Data Guard Network Timeout Slow Disk Performance on Standby Databases Log Files Must Match to Avoid Primary Database ... Processes (ARCn) to Archive Redo Data Using the Log Writer Process (LGWR) to Archive Redo Data Providing for Secure Redo Data Transmission When Redo Data Should Be Sent ... archived redo data: s For physical standby databases, Data Guard uses Redo Apply technology, which applies redo data on the standby database using standard recovery techniques of an Oracle database,...

Ngày tải lên: 17/01/2014, 06:20

... two network adapters; one for the public network interface and one for the private network interface (the interconnect) The interface names associated with the network adapters for each network ... nodes For increased reliability, you can configure redundant public and private network adapters for each node For the public network, each network adapter must support TCP/IP For the private network, ... Oracle Database Administrator's Reference, 10g Release (10.1) for UNIX Systems ■ ■ ■ Oracle Database Platform Guide for Windows Oracle Database System Administration Guide 10g Release (10.1) for...

Ngày tải lên: 21/12/2013, 04:17

... desired As for any other Oracle RAC configuration, a separation of networks for the Public network Private network (cluster interconnect) Storage network (if applicable) is required for production ... hold the data These structures are commonly known as ‘datafiles’) However, a clustered database (using more than one instance) differs from a single instance database in a way that the database ... Oracle VM host However, network bandwidth and capacity must be considered in this case (see “Sizing the Oracle VM environment for Oracle RAC” for recommendations) Network Bonding For production environments...

Ngày tải lên: 20/02/2014, 05:21

... at least two network adapters – Has two network interface cards but is using network attached storage (NAS) You should have a separate network adapter for NAS For the most current information about ... Performance and Troubleshooting About Monitoring Oracle RAC Database and Cluster Performance 8-1 Automatic Database Diagnostic Monitor and Oracle RAC Performance 8-2 Viewing ADDM for ... data blocks (which reside in memory) between database instances, rather than having one database instance write the data blocks to disk and requiring another database instance to reread the data...

Ngày tải lên: 07/03/2014, 23:20

... primary databases hold several terabytes of data everything from flight data, to solar flare forecast information, to marketing data for potential target customers, in addition to data used for internal ... apply) ORACLE DATABASE o 01 Oracle Database 11g o 02 Oracle Database 10 g o 03 Oracle9 i Database o 04 Oracle Embedded Database (Oracle Lite, Times Ten, Berkeley DB) o 05 Other Oracle Database Release ... impact Therefore, Oracle Data Guard is another key component in Max’s database grid strategy for LunarTrax Oracle RAC and Oracle Data Guard combined allow Max the flexibility to perform ongoing...

Ngày tải lên: 31/05/2014, 01:09

... desired As for any other Oracle RAC configuration, a separation of networks for the Public network Private network (cluster interconnect) Storage network (if applicable) is required for production ... hold the data These structures are commonly known as ‘datafiles’) However, a clustered database (using more than one instance) differs from a single instance database in a way that the database ... Oracle VM host However, network bandwidth and capacity must be considered in this case (see “Sizing the Oracle VM environment for Oracle RAC” for recommendations) Network Bonding For production environments...

Ngày tải lên: 29/06/2014, 02:20

... Prob 2.77 for arbitrary depth h and gate radius R and derive a formula for the opening force P Is there anything unusual about your solution? Solution: Referring to Fig P2.77, the force F and ... larger than Derive a formula for pA pB if the reservoirs are very large Solution: Apply the hydrostatic formula from A to B: Fig P2.42 p A + 1gh1 gh 1g(h1 h) = p B Solve for p A pB = ( ) ... (to left) Ans (b) 2.56 For the gate of Prob 2.55 above, stop B breaks if the force on it equals 9200 lbf For what water depth h is this condition reached? Solution: The formulas must be written...

Ngày tải lên: 23/10/2013, 21:15

... single-instance Oracle database deployment and performance methodologies apply to RAC Therefore, you should be familiar with the information in Oracle Database Performance Tuning Guide, and Oracle Data Warehousing ... Oracle database tuning practices apply to applications running on RAC databases Therefore, implement the single-instance tuning methodologies described in Oracle Database Performance Tuning Guide ... performance data generated by the Automatic Workload Repository, Statspack, or by ad-hoc queries of the dynamic performance views See Also: Oracle Database Performance Tuning Guide for more information...

Ngày tải lên: 21/12/2013, 04:17

... applications on RAC databases and monitor database performance Oracle Database Platform Guide for Windows: Contains information specific to managing a database on a Windows platform Oracle Database Administrator's ... network adapters: one for the public network interface, used for client connections, and one for the private network interfaces, used for communication between the database instances Oracle Application ... Describes the tasks that a database administrator performs to manage a cluster database Oracle Real Application Clusters Deployment and Performance Guide: Provides guidelines for database administrators...

Ngày tải lên: 21/12/2013, 04:17

Ngày tải lên: 21/12/2013, 19:15

... • • • DataSource The DataSource is the source of the data for your DataGrid In this example, the DataSource is dataSet11 DataMember The DataMember is the name of the table to which your DataGrid ... adds a new DataSet object named dataSet11 to your form Next, you'll need to set the DataSource property of your DataGrid to your DataSet object This sets the source of the data for your DataGrid ... the rows from your DataSet to be displayed in your DataGrid To set the DataSource property, click your DataGrid object and set the DataSource property to dataSet11 Also, set the DataMember property...

Ngày tải lên: 24/12/2013, 01:17

... Implement the findPhone_Click method now It should look like this: partial class Form1 : System.Windows.Forms.Form { private void findPhone_Click(object sender, System.EventArgs e) { string ... to the Name text box Implement this method It should look like this: partial class Form1 : System.Windows.Forms.Form { private void findName_Click(object sender, System.EventArgs e) { string text ... This method is currently empty It should perform the following tasks: Read the Text string from the Name text box If the string is not empty, then search for the phone number corresponding to that...

Ngày tải lên: 24/12/2013, 09:16

... Performance Guide ■ Oracle Database Administrator's Guide ■ Oracle Database Day DBA ■ Oracle Database Net Services Administrator’s Guide ■ Oracle Database Platform Guide for Windows ■ Oracle Database ... intended for database administrators, network administrators, and system administrators who perform the following tasks: ■ Administer and manage RAC databases ■ Manage and troubleshoot clusters and networks ... Pages for Real Application Clusters Databases Summary Page Cluster Database Home Page Cluster Database Instances Pages The Databases Overview Page for...

Ngày tải lên: 24/01/2014, 08:20

... additional adjustment for BMI) logistic regression analyses for the subgroup of participants with non-missing information on BMI Additional sensitivity analysis was performed for type of diagnosis ... Questionnaire, data on BMI was missing for 98 of these respondents To be able to include all patients in the main analyses, we decided not to adjust for BMI in the main analyses, but to perform a sensitivity ... biological mechanism for the relation between air pollution and type diabetes, by showing that women with high C3c blood levels (a marker for subclinical inflammation) were more susceptible for particulate...

Ngày tải lên: 06/03/2014, 19:20

... mLÆmin)1 Retention times were 7.3 for SP, 8.6 for [Ala9]SP, 7.5 for [HGly9]SP, 7.1 for [(R)-b2-HAla9]SP and 7.7 for [(S)-b3-HAla9]SP Enzymatic assays were performed twice and yielded similar results ... Percentages of degradation were found to be 54 ± 1% for SP, 55 ± 3% for [Ala9]SP, 33 ± 5% for [HGly9]SP, 26 ± 3% for [b2-HAla9] and 14.5 ± 2.5% for [b3-HAla9], thus showing that these b-amino acid-containing ... conformers of Ac-HGlyNHMe obtained with DISCOVER and AMBER forcefield Table S2 Minimum-energy conformers of Ac-b2-HAlaNHMe obtained with DISCOVER and AMBER forcefield Table S3 Minimum-energy conformers...

Ngày tải lên: 08/03/2014, 08:20

... can automatically reinstate the former primary database as a standby database in the new configuration See Also: Oracle Data Guard Broker for more information about Data Guard ■ Expanded Enterprise ... Guide ■ Oracle Database Net Services Administrator's Guide ■ Oracle Database Platform Guide for Microsoft Windows (32-Bit) ■ Oracle Database 10g Administrator's Reference Release (10.2) for UNIX Systems: ... Features for Oracle RAC Administration See Also: Oracle Database New Features for a complete description of the new features in Oracle Database 10g release (10.2) and Oracle Database Day DBA for an...

Ngày tải lên: 23/03/2014, 16:20

... the transmission rates while keeping the packet error rate (PER) constant, or we can decrease the PER for the same transmission rate, or we can decrease the transmission power for the same transmission ... We emulated the bad channel in direct mode by forcing the data rate in the direct transmission to be Mbps (BPSK) The transmission via the helper for both hops was fixed at 24 Mbps (QAM-16) Using ... without contention) there is no contention for the second hop transmission Additionally, there is a single direct ACK for each two hop transmission Therefore, the boost due to cooperation is even...

Ngày tải lên: 21/06/2014, 20:20

... clinicians assessed; ωi = weight for ith item; xijk = if item is not performed; xijk = if item is performed; NR = Not reported; NA = Not applicable * This study used this method for hypothesis testing ... having been performed were recorded by direct observation as performed? Specificity and negative predictive values address similar questions, but about actions that were not performed For single ... performed on the proxy It is possible to have perfect agreement even if the direct and proxy measures record completely different items as performed For example, the percentages recorded as performed...

Ngày tải lên: 11/08/2014, 05:21

... chromosome 22q11.2 deletion syndrome a possible diagnosis For this reason, fluorescent in situ hybridization was performed using DNA fluorescent probes for the DiGeorge/velocardiofacial syndrome critical ... obvious cognitive impairments Physical examination was remarkable for short stature, hypertelorism, hooded upper eyelids, prominent forehead, hypernasal speech and fullness http://www.jmedicalcasereports.com/content/1/1/167 ... therefore the clinical presentation may change [4] It has a variable phenotypic expression, with no pathognomonic or obligatory clinical features, and requires a high level of awareness for its...

Ngày tải lên: 11/08/2014, 10:22

... 8.8) 2.0 (1.2, 3.3) CD4 percentage c a Adjusted for age category, sex, CD4 percentage and plasma viral load data for individuals c Missing data for individuals b Missing 0.007 1.4 (0.8, 2.5) 0.2 ... (27%) 125 (94%) 152 (96%) (5%) (4%) Sex Ethnicityb Manjago Other a Data missing for one HIV-2 infected subject b Data missing for one HIV-2 infected subject In a multivariable analysis with age ... vital status (data collected up until mid-2009) They were also invited for a clinical examination and asked for a blood sample in 1991, 1996, 2003 and 2006 Blood samples were tested for HIV status,...

Ngày tải lên: 12/08/2014, 23:23