EC2 Reserved instances in AWS

 Amazon EC2 Reserved instances(RI)  provides a significant discount( up to 75%) compared to On-Demand pricing and provide a capacity reservation when used in a specific Availability Zone.

discount when you use an EC2 for a long continue use.

You have the flexibility to change families, OS types, and tenancies while benefitting from RI pricing when you use convertible reserve instance (up to 54% discount)

Scheduled RI: reserve  during specific launch periods. For example if you are able to predit demand during the day this is a great option.

Summary: you know you'll need an EC2 instance for a year you should consider using reserved instances.

 

Payment option: You can choose between three payment options:                                                             
1. All upfront:  You pay for the entire Reserved Instance term (one or three years) with one upfront payment and get the best effective hourly price when compared to On-Demand.                                                                                                

2. partial upfront: you pay little bit and rest is installments.                                                               

3. No Upfront: all monthly installments which makes little expensive.                                          

you choose the partial or No Upfront payment option, the remaining balance will be due in monthly increments over the term.

Hands on:                                                                                                                                                                         

Step1: create an EC2 instance in a standard on -demand process.  (ex: suppose T2 instance here)                                                            

 Step2: Purchase a reserved instance. that matches the EC2 instance create in the step1. (T2 instance here too).

                                                                            

*Automatically the billing for the T2 type instance will goes to reserved instance.     

step3: in case of additional changes in the step1. suppose from T2 type instance to C4 type instance.

Step 4: launch the C4 type instance for reserve instance.                                                                         

*Automatically the billing for the C4 type instance will goes to reserved instance.     

Navigate to instance --> Reserved instances as shown below.                                                                                       

Click on purchase reserve instances.                                                                                                         

Choose your platform                                                                                                                                    

Tenancy :                                                                                                                                               

Default option:    for sharing with other people. when you are not using the reserved instance host.

Dedicated: only for you.                                                                                                                       

Offering Class : As per above table in this post.                                                                                            

Provide instance type and duration for the reserved instance info.                                                                             

Choose your payment option.                                                                                                                                   

Click on search.

Add the desired quantity, suppose you need same C4 type instance - 4 no. you can provide you entry as 4 here.

Click on Add to cart.

Finally click on view cart and pay the price.

SLD (System Landscape Directory) configuration in solman java AS

What is SLD?

After the Launch of Netweaver, where all the systems are defined in One Landscape. So we use SLD to register the other systems in the Landscape

 

Before configuring SLD we have to open SAP in local browser as http://solman.<host_name>:50200/sld where "5" is default and "02" is instance number and ''00" is default port

·         In case the browser is opening means we have to go directory /usr/sap/SID/SYS/global/security/data/icm_filter_rules.txt file in that file we have to remove content then save it and restart the SAP server

·         Login solman.<hostname>:50200

• Select SAP NetWeaver Administration

·         Provide the username “J2ee_admin” and password then login

·         Click on Configuration Tab

·         Under configuration tab select "scenarios"

·         Open "Configuration Wizard" option.

·         Open "Function Unit configuration UI"

·         Then select "System Landscape Directory" from the menu and click on "Enable Automatically"

·         It ask to provide ABAP Administrator password, J2EE Administrator password, Master password

·         Then click on next

·         Select ''set up a new local SLD, then give next

·         Wait till it get completes

·         Finished the SLD Configuration

·         Once SLD is ready, upgrade CR content

·         Check the CR Content version by the navigation follows,

·         Login as http://solman.<hostname>:50200/sld and select Administration Tab

·         Click on details

·         Click on data, there in content you can observe the version of SAP CR CONTENT

·         Update CR content as per SAP note: 669669- update of SAP system Component Repository in SLD.

·         Download SAP CR content from support.sap.comà support packages and patches By Alphabetical Index (A-Z) -> letter C -> SAP CR CONTENT page, the following items to be download are current CIM data model as the file name cimsap…zip file and current SAP CR Content update as the file CRDelta….zip file

·         Now we have to import those two file by using URL http://solman.<hostname>:50200/sld à Administration Tab àImport

·         In this step we have to load CIM file

·         Click on  continue import

·         Do it same for CRDELTA

·         Import started

·         Once CR content upgrades finish --> choose administration -->settings               -->server configuration, choose "perform role mapping button" and click confirm.

·         Confirm

·         Roles have been mapped

·         Next step is we have to call T-code SOLMAN_SETUP