Implementing Mass Storage

Question 1

RAID

Answer 1

Redundant array of inexpensive disks
Can be setup with hardware or software
There are proprietary raids

Question 2

Raid 0/ striping

Answer 2

Requires at least 2 drives
Splits up large files between the two drives
Pros. Fast
Cons. No redundancy

Question 3

Raid 1/ mirroring

Answer 3

Needs two or four drives
Puts same file on both drives one piece at a time
Pros. Redundancy
Cons. Slower

Question 4

Raid 5/ parity

Answer 4

Minimum of three drives
Saves different pieces to first two drives combine them into a parody package on the third that can be used to restore lost data
If you looses more than one drive the system falls apart

Question 5

Raid 6

Answer 5

Minimum of four drives
Generates two parities for each piece of data

Question 6

Raid 10/ striping mirrors

Answer 6

Minimum of four drive
Two mirrored pairs each mirrored pair has half the data

Question 7

Raid 0+1

Answer 7

Mirror the stripes

Question 8

Hardware raids

Answer 8

Use some kind of controller to configure raid arrays on hard drives
Most mobos have built in raid controllers
Has its own BIOS that comes with a special system setup to configure the raid array
The complete array looks like a single drive to the os

Question 9

Ctrl R

Answer 9

To configure raid ARRag

Question 10

How is hardware raid better than software

Answer 10

Hardware is better when you need more power

Question 11

Software raid

Answer 11

Storage spaces built into windows
Very flexible
Doesn’t have a dedicated raid controller so can be tough on smaller CPUs
Uses os to configure the raid array
Windows comes with built in tool called storage spaces to configure

Question 12

File based encryption

Answer 12

Software feature built in that encrypts files you tell it to

Question 13

Disk based encryption

Answer 13

A tool that’s either third party or built into os that encrypts the whole drive

Question 14

EFS encrypting file system

Answer 14

Built into NTFS

Question 15

Encrypting tools for each system

Answer 15

Bitlocker for windows
File vault Mac
Linux has to many options to list

Question 16

TPM trusted platform module

Answer 16

Chip in motherboard with very robust key to help encrypt files
Turn it on in system setup

Question 17

Error checking

Answer 17

Check for errors on hard disk drives and SSDs

Question 18

Optimization / disk defragmentation/ defrag

Answer 18

Reorganizes HDDs so they run more efficiently
Trims blocks in disk to allow for new data to be written in partially full blocks

Question 19

Chkdsk

Answer 19

Check disk

Question 20

Error checking runs ?

Answer 20

Chkdsk a disk partition to check for bad sectors

Question 21

Trimming allows ?

Answer 21

Dats to be written on individual pages termed “available for use”