Mass Storage Technologies

Question 1

Hard drive

Answer 1

Split into sectors, 512 bytes or 4,096 bytes

Question 2

SSD

Answer 2

Split into blocks, 1000 bytes

Question 3

Optical media

Answer 3

Split inro tracks, around 100 bytes

Question 4

LBA

Answer 4

Logical block assessing

Access as interface between os and storage device

Allocates necessary number of blocks per file to store

Question 5

Kilo

Answer 5

1000

Question 6

Kibi

Answer 6

1024

Question 7

Mega

Answer 7

1,000,000

Question 8

Mebi

Answer 8

1,048,576

Question 9

Form factors

Answer 9

5.25 in
3.5 in, most dominant
2.5 in, org for laptop
1.8 in, not very popular
M.2, most popular for SSD

Question 10

Magnetic disk drives

Answer 10

Metal disk read by little metal arm
Use spinning platters to store data via magnetism
Data is accessed through read write heads

Question 11

HHD

Answer 11

Hard disk drive, has to have something spinning on the inside

Question 12

ATA

Answer 12

Advanced technology attachment
Language used by HDD to communicate

Question 13

PATA

Answer 13

Original ATA
Parallel ATA
Uses integrated drive electronics cables

Question 14

SATA

Answer 14

Serial ATA type of cable/ connector used for ATA communication

Question 15

ESATA

Answer 15

SATA designed to be used externally
Taken a backseat due to advancements in usb

Question 16

RPM

Answer 16

Revelations per minute

Question 17

Standard RPM values

Answer 17

5,400 rpm
7,200 rpm
10,000 rpm
15,000 rpm

Question 18

SSD

Answer 18

Solid state drive, most popular
Lots of chips, no moving parts
Organized into pages
Single page is made of blocks

Question 19

Most common form factors for ssds

Answer 19

2.5 3.5 and m.2

Question 20

What type of connectors do some ssds use for power and data?

Answer 20

SATA cable

Question 21

NVME

Answer 21

Non-volatile memory express
Used to communicate with SSDs
Mostly for M.2 drives
Much faster than SATA

Question 22

SCSI

Answer 22

Small computer system interface
Language used to talk to a drive

Question 23

SAS

Answer 23

Serial attached SCSI
Similar to SATA

Question 24

ISCSI

Answer 24

Internet scsi used mostly on servers