Workload/Applications
List the 4 cross vertical applications
CRM- customer relationship management
SCM- supply chain management
HRIS- Human Resources information system
ERP- Enterprise Resource planning
What is the difference between a server and a client?
Server- made for multiple users (more cash and ram)
Client- for one user (laptop)
What is a GUI
graphical user interface- how you see the program
How intuitive or simple they are. Customers will want something that is easy to navigate and visually appealing
Who founded dell and when?
Michael Dell 1984
What is VMotion?
software that moves applications from one physical server to another
- work that used to be performed off hours can now be done non-disruptively during normal hours
What are the application requirements?
CAP
Availability-underlying infrastructure must be continuously available. Having your application up and running, available to users.
Performance-how quickly the work can get done. How quickly you can complete things on the app.
Capacity-how much info the business process generates over time plus how much needs to be kept for certain length of time. The capability to store the data from the application.
CAPEX vs. OPEX
CAPEX - one time purchase, own, usually benefits for a long time
OPEX - day to day, month to month, ongoing
Types of network infrastructures
LAN- local area network
WAN- wide area network
SAN- storage area network
When did the merger occur?
Sept 7, 2016
Application Technology stack
Application - interface of data. Generate/produce data
Middleware- Translator. Interact with application, middleware takes it and moves it to database, then database sets rules and standards around the data. Built into the app
Database- back end of application. We never interact with database. Organizes data and makes it easy to access.
Operating system- Makes hardware run. Server, storage, backup. ex. iOS
Hardware- any physical actual hardware with power or storage capacity. Any piece of hardware has operating system. Ex. iphone (metal and glass)
Explain the different types of data.
Structured or block data- easiest to store and protect, moderate about of data redundancies, database data, set of data with integrity and makes sense, fields columns rows. Ex. names, addresses
Unstructured data or file data- no structure, no organization. More expensive, most difficult. Ex. Pictures videos, word, PowerPoint
4 components of computer/server
CPU- central processing unit- the brains of the computer, processes all the data.
RAM or CASH- Random Access Memory- volatile memory. Makes it easy to access data that you usually access. Ex. If we lose power, all that data will be deleted. Needs power source to collect data.
HDD/SSD- Hard disk drive/solid state drive- long term memory. storage for all data even without power
NIC- network interface card- ability to plug in external devices to our laptops Ex. How you plug in your keyboard to your laptop
What components make up a data center?
LAN- network
Server- house and run our app
Switch- path to send data
Storage- SAN and NAS and Unified
Cabling or networking- send data from end user to arrays or backup storage
Who founded EMC?
Curly, Marino, Egan
Difficulties for IT dep. operating multiple servers
-floor space- companies have limits to how much hardware they can use.
-A bunch of different systems to run different applications would be costly-
capital expenditure- the money you put down to buy a piece of hardware.
operational expenditure- money used to operate the car
-Paying for space that you might not need
-Lot of time to implement a lot of severs (if you need all new servers then it would be a lot of time)
-availability- server needs to be up and running at all times. If server goes down, screwed.
How data can be classified.
Active content- data is in use and being accessed by end users or is regularly updated, currently relevant and must be protected and quickly recoverable (ex. Stock prices, recent emails)
Static data- not active data, info hasn't been changed or accessed over a long period of time. (long term retention, archive data)
Fixed content- data that cannot be changed from its origination. Don’t need high performing data. Ex. X-ray
Why flash vs. disk?
Performance, efficiency, reliable/simple
3 Cloud deployment methods
Native public cloud- leveraging the public cloud provider tools to manage and deploy applications
Private cloud- private cloud refers to a model of cloud computing where IT services are provisioned over private IT infrastructure for the dedicated use of a single organization. A private cloud is usually managed via internal resources
Multi-cloud- a multi cloud strategy is the use of two or more cloud computing services.
What is digital transformation?
Drive digital transformation
HDD/SSD speed in IOPS?
SSD- solid disk drive - ~10,000 IOPS per drive, great performance, very low latency, expensive
SAS- spinning disks- ~200 IOPS per drive, good performance, low latency, more costly than NL-SAS
SAS- ~200 IOPS per drive, decent performance, little latency, more costly than NL-SAS
NL-SAS- ~100 IOPS per drive, capacity, cost effective, performance
How are workloads prioritized?
70/30 split story
With traditional architecture you're looking at 70% of your IT departments time just going towards keeping the lights on and maintenance. With only 30% going towards innovation and that competitive advantage. Here at Dell were trying to flip that for you.
Benefits of virtualization
-increase app availability- capability to move apps to ensure the app is up and running and available
-server consolidation- shrink servers down to smaller number, consolidate the environment, less to manage
-stop server sprawl- start out with some but keep adding more. Stops that, don’t have to get new server every time
-maximize server utilization
-save $$$ on additional servers
-rapid application deployment-deploy apps quick, quickest
Components of a modern data center
Flash, scale out, software based, cloud enabled, trusted, AI/ML
Role of database
Concurrency- multiple users can access this at the same time
Security- security rules to determine access rights of users
Integrity- structure and rules to the data. Can group data together where it makes sense.
Data descriptions- data dictionary provides a description of data. Ex. Names of customers.