IT-SA1 Topic 1-5 (System Administration)
Off
Retired computer
Rebuild
in some cases, a machine will need to be _______, either because of some kind of problem or because the changes to be made are so drastic, that simple updates make no sense.
MANAGEMENT OPTIONS
(Feature of Server) Ideally servers should have some capability of are for remote management such as serial port access, that can be used to diagnose and fix problems to restore a machine that is down to active service.
HIGH-AVAILABILITY OPTIONS
(Feature of Server) Many servers include various high availability options, such as dual power supplies, raid, multiple network connections and hot-swap components
UPGRADE OPTIONS
(Feature of Server) Server are often upgraded, rather than simply replace. They are designed for growth
RACK MOUNTABLE
(Feature of Server) Server should be rack mountable. Server should be rack mountable. A server should be rectangular and designed for efficient space utilization in rack.
Extensibility
(Feature of Server) Servers already have either more physical space inside for hard drives and more slots for cards and CPU's, or are engineered with the high through put connectors that enable use of special peripherals.
HIGH-PERFORMANCE INPUT/OUTPUT
(Feature of Server) Servers just really do more input output then clients. The quality of input output is often proportional to the number of clients. So which justify faster I/O subsystem.
MORE CPU PERFORMANCE
(Feature of Server) Servers often have multiple CPUs, or you might refer CPU as your processor. The advanced hardware features such as pre-fetch, multi-stage processor checking and the ability to dramatically allocate resources among CPUs.
NO SIDE ACCESS NEEDS
(Feature of Server) a rack mounted the host is easier to repair or perform maintenance on if task can be done while it remains on the rack.
MAINTENANCE CONTRACTS
(Feature of Server) vendors have server hardware service contracts that generally include guaranteed turnaround time on replacement parts.
System Administration
-The field in Information Technology that is responsible for maintaining reliable computer systems in a multi-user environment. -The job is to ensure that computer systems and all related services are working well.
IT Infrastracture
Are the components required to operate and manage Enterprise Information Technology environments.
1. New 2. Clean 3. Configured 4. Unknown 5. Off
EVARD'S LIFE CYCLE OF MACHINE main parts
1. Build 2. Initialize 3. Update 4. Entropy 5. Debug 6. Rebuild 7. Retire
EVARD'S LIFE CYCLE OF MACHINE process
1. EXTENSIBILITY 2. MORE CPU PERFORMANCE 3. HIGH PERFORMANCE I/O or INPUT/OUTPUT 4 UPGRADE OPTIONS 5. RACK MOUNTABLE 6. NO SIDE ACCESS NEEDS 7. A HIGH ABILITY OPTIONS 8. MAINTENANCE CONTRACTS 9. MANAGEMENT OPTIONS
Features of a Server
Information Services
IS stands for
SYSTEMS ADMINISTRATION AND MAINTENANCE
IT-SA01 Code stands for
Large groups of similar servers
In this case, it may be reasonable to purchase a spares kit so that repairs can be done by local staff. The cost of the spares kit is divided over the many hosts. These hosts may now require a lower-cost maintenance contract that simply replaces parts from the spares kit.
System Administrator
Is a person employed to manage and maintain a computer system and/or a network.
home, business, and server
Most vendors have three product lines:
-Systems Administrator -System Administrator -SysAdmin -IT Professional
Other called for System Administrator
1. To provide a channel for users to request and receive standard services for which a pre defined approval and qualification process exists. 2. To provide information to users and customers about the availability of services and procedure for obtaining them. 3. To source and deliver the components of requested standard services (Example: Licenses and software media) 4. To assist with general information, complaints or comments.
SERVICE REQUEST OBJECTIVE
Non-critical server
Some hosts are not critical, such as a CPU server. In that situation, a maintenance contract with next-day or 2-day response time is reasonable. Or, no contract may be needed if the default repair options are sufficient.
Highly critical host
Some vendors offer a maintenance contract that provides an on-site technician and a duplicate machine ready to be swapped into place. This is often as expensive as paying for a redundant server but may make sense for some companies that are not highly technical
Critical host
Sometimes it is too expensive to have a fully stocked spares kit. It may be reasonable to stock spares for parts that commonly fail and otherwise pay for a maintenance contract with same-day response.
Controlled introduction
Technology improves over time, and sites described eventually need to upgrade to newer models.
Retire
This is the process of turning a machine off are shutting that your computer, shutting down your computer.
Database Administrators (DBAs)
This job manages a database infrastructure and is responsible for data integrity and infrastructure reliability and accuracy.
Network Administrator
This job manages network equipment, such as switches and routers, and detects issues with or with the actions of computers linked to the network.
1. Loading the system software and applications initially. 2. Update the system software and applications. 3. Configure network parameters.
Three Basic Tasks in Managing Operating Systems on Workstations:
1. To have a good inventory system and use it to cross reference the service contract. 2. To have the person responsible for processing purchases also add new machines to the contract. 3. You should fix a common problem caused by warranties.
Three easy ways to prevent hosts from being left out of the contract:
SYSTEM ADMINISTRATION
Title of Topic 1
Foundation Elements of Systems Administration
Title of Topic 3
Foundation Elements of Systems Administration (SERVER MANAGEMENT)
Title of Topic 4
SERVER MANAGEMENT
Title of Topic 5
System Administrators' Guild (SAGE) and League of Professional System Administrators(LOPSA)
What are the good resources for the SA community.
RECOMMENDATIONS FOR BETTER SYSTEM ADMINISTRATION
What is the title of Topic 2?
When properly networked, technology can be optimized to improve communication, create efficiencies and increase productivity.
Why IT Infrastracture is important
Service Request
You are either requesting to a service or request for a service.
Unknown
a computer that has been misconfigured.
Configured
a computer that is configured correctly according to the requirements of the computing environment
Distributed Data Processing
a data processing network where some functions are performed in different places on different computers and are connected by transmission facilities.
Heterogeneous Environments
have the benefit that you are not locked in to one vendor, and the competition among the vendors will result in better service to you. (Environment)
Technical Support Staff
address the issues of individual users with computer systems, gives instructions and often training, and analyze and fix specific problems.
Homogeneous
all the same vendor or product line.
Duties and Responsibilities
ang haba ng duties and responsibilities, edit mo nalang kapi if want mo lagyan
Homogeneous Environments
are easier to maintain, because training is reduced, maintenance and repairs are easier one set of spares and there is less finger pointing when problems arise. (Environment)
Initialize
this occurs directly after built at many sites is thought of as part of the same process
Ticket Management System
can be defined as a robust software used to register, organize, prioritize, and resolve support tickets. These tickets can be issues or requests requested by your employees or your customers.
Workstation or Workstations
computer hardware dedicated to a single customer's work. (Ter(Terms need to know)ms need to know)
Clean
computer with the OS installed, but not configured to work in the environment
Build
during the ____ process, the operating system is installed on the machine.
Security Administrator
is a computer and network security expert, performing the management of security devices like firewalls, as well as general security consultations.
Server
is a computer that provides data to other computers, it may serve data to system on a local area network or LAN or a wide area network one over the internet.
Packet
is a small amount of data sent over a network such as a LAN or the internet.
Performance
is assessed by the nature of the DDP and the obligations it supports. (Terms need to know)
Website Administrator
is charged with a wide range of administrative tasks, including designing, developing, maintaining, and troubleshooting websites. They are also responsible for creating and updating content, implementing security protocols, creating backups, sorting out software issues, and much more.
Latency
is the delay before the data is received by the other end.
Service
is the function that the server provides, a service, may be built on several servers that work in conjunction with another computer.
Domain Name System (DNS)
is the phonebook of the internet. DNS translates domain names to IP addresses to browsers. So, browsers can load internet resources.
Request Management
is the systematic handling of the tasks required for a variety of different internal or external requests using workflow automation, business rules, and analytics.
Heterogeneous
many different vendors and/or product lines.
New
means a new machine or a new workstation.
Bandwidth
refers to how much data can be transmitted in a second
Connectivity
refers to the ability of each element in this system to exchange data with the other elements.
Entropy
refers to the gradual process of change that results in a computer that has an unknown state.
Availability
refers to the percentage of time that an element or user gets in the total time of the network.
Request
the act of asking something to be given or done.
Debug
the bug refers to the process of ______ an unknown machine and getting it back to specifications
Update
the update at some point after the installation.