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Rounded Stack Developer

Read Linda Claire's answer to How do I become a full stack developer in 2018? on Quora

Modernizing Data Centre by VMware

VMware vSphere 6.0.0 Esxi Installation

Steps of Installation

1. check grid/ rack id
2. get ip address of server
3. adjust ipv4 connection of client computer
4. enter address and index server web
5. enter huawei server login ( default provided)
5. enter remote tab from menu
6. remote virtual console
6. run JDC (Java application)
7. reboot application (ctrl + alt + delete)
8. check raid storage ( Ctrl + C)
8. insert image file/ iso file from ( desktop )
9. reboot again ( ctrl alt delete )
10. connect image file from disk
11. Installing vmware esxi system image
10. Enter esxi login password (default provided)
11. Disconnect mount image file
12. Reboot

Ignoring Files ( Git Environment )

Explanation 

If you create a file in your repository named .gitignore, Git uses it to determine which files and directories to ignore, before you make a commit.

A .gitignore file should be committed into your repository, in order to share the ignore rules with any other users that clone the repository.

Explicit Repository Excluded

If you don't want to create a .gitignore file to share with others, you can create rules that are not committed with the repository. You can use this technique for locally-generated files that you don't expect other users to generate, such as files created by your editor.

Use your favorite text editor to open the file called .git/info/exclude within the root of your Git repository. Any rule you add here will not be checked in, and will only ignore files for your local repository

Reference 

https://help.github.com/articles/ignoring-files/

Web Application Tools

Some tools that can aid you in developing a personal or even business web page.

For design : use www.easel.io

For responsive testing : mattkersley.com/responsive


Coding Reference

1. Bootstrap ( W3Schools )

Intro - https://www.w3schools.com/bootstrap/
Customize - https://getbootstrap.com/docs/3.3/customize/#download

Section Scroll (Aminate)
https://www.w3schools.com/jquery/tryit.asp?filename=tryjquery_eff_animate_smoothscroll

Smooth Scroll-to-Top (Animate)
https://codepen.io/kruxor/pen/CwpFq

How to apply CSS Animation
http://www.telegraphicsinc.com/2013/07/how-to-use-animate-css/

2. CSS ( CodeAcademy )

https://www.codecademy.com/learn/learn-css

3. JavaScript Development

JavaScript Intro 

https://www.codecademy.com/courses/learn-javascript-introduction

Explanation about Waypont + Animate css 

https://spin.atomicobject.com/2015/05/31/scroll-anmiation-css-waypoints/


4. Web Developer Bootcamp ( Udemy )

https://www.udemy.com/the-web-developer-bootcamp

5. Foundation of Front End ( Udemy )

https://www.udemy.com/foundations-of-front-end-development


Optimal User Experience Topic
https://stackoverflow.com/questions/436411/where-should-i-put-script-tags-in-html-markup/24070373#24070373

Physical and Virtual RDMs Compatibility

An RDM is a special mapping file in a VMFS volume that manages metadata for its mapped device. The mapping file is presented to the management software as an ordinary disk file, available for the usual file-system operations. To the virtual machine, the storage virtualization layer presents the mapped device as a virtual SCSI device.

 RDM has two compatibility modes:

• Physical compatibility mode 
• Virtual compatibility mode

Physical Compatibility Mode

• Physical mode specifies minimal SCSI virtualization of the mapped device, allowing the greatest flexibility for SAN management software. 
• The VMkernel passes all SCSI commands to the device, with one exception - The REPORT LUNs command is virtualized, so that the VMkernel can isolate the LUN to the owning virtual machine. Otherwise, all physical characteristics of the underlying hardware are exposed. 
•  Note: Other VMkernel modules have the ability to intercept I/O to perform relevant operations such as NMP, Drivers, etc. For a graphical representation of the ESXi storage stack, see the VMkernel and Storage section of the vSphere Storage Guide for ESXi 5.0, ESXi 5.5 and ESXi 6.0. 
• Physical mode is useful while running SAN management agents or other SCSI target-based software in the virtual machine. 
• Physical mode also allows virtual-to-physical clustering for cost-effective high availability. 
• Virtual Machine Snapshots are not available when the RDM is used in physical compatibility mode. 
• You can use this mode for Physical-to-virtual clustering and cluster-across-boxes. 
• VMFS5 supports greater than 2 TB disk size for RDMs in physical compatibility mode only. These restrictions apply: 
•  You cannot relocate larger than 2 TB RDMs to datastores other than VMFS5. 
• You cannot convert larger than 2 TB RDMs to virtual disks, or perform other operations that involve RDM to virtual disk conversion. Such operations include cloning.

Physical Compatibility Mode

• Virtual mode specifies full virtualization of the mapped device. 
• VMkernel sends only READ and WRITE to the mapped device. The mapped device appears to the guest operating system exactly the same as a virtual disk file in a VMFS volume.
• The real hardware characteristics are hidden. 
• If you are using a raw disk in virtual mode, you can realize the benefits of VMFS, such as advanced file locking for data protection and snapshots for streamlining development processes. 
• Virtual mode is more portable across storage hardware than physical mode, presenting the same behavior as a virtual disk file. 
• You can use this mode for both Cluster-in-a-box and cluster-across-boxes.

References 

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2009226