Book2: Chapter5: Working with Storage Flashcards
hot-swappable technology
SATA
you can add or remove drives from the system without shutting down the system.
SATA speeds
SATA v1 150 MBps
SATA v2 300 MBps
SATA v3 600 MBps
RAID
Redundant Array of Inexpensive Disks (RAID) defines the myriad ways in which you can combine two or more separate hard drives for the goals of I/O speed and/or data safety.
SSD
Solid state drives
use magnetic states to store the data. Solid state drives do not have any moving parts such as platters or read/write heads; they simply store data permanently to a huge block of memory.
M.2
defines a new way to mount expansion cards inside a computer chassis.
NVMe
‘Non-Volatile Memory Express’ is a communications standard developed by a consortium of SSD drive manufacturers. The purpose of the standard is to help SSD drives act more like RAM in terms of access time and overall performance. NVMe SSD drives can read and write data four times faster than traditional SATA SSDs.
CD-ROM
DVD
Blue-ray
stores 700MB of data
4.7 and 8.5GB of data
25GB and 50GB
- What does DL mean in the acronym DVD-RW DL?
(A) Device Layer
(B) Dual Layer
(C) Disc Level
(D) Drive Letter
B.
The DL in DVD-RW DL stands for double layer. This means that the disc has typically double the capacity of a single layer optical disc. See “DVD/DVD-RW.”
- Which of the following is considered a hybrid RAID type?
(A) RAID 0
(B) RAID 1
(C) RAID 5
(D) RAID 10
D.
RAID 10 is an example of a hybrid RAID array because, in this case, you’re combining a RAID 1 set with a RAID 0 set. Check out “RAID 10.”
- Which of the following best describes where the Master Boot Record is located?
(A) Last track on the disk
(B) First track on the disk
(C) First sector on the first track of the first side of the first platter
(D) First sector on the last side of the last platter
C.
The master boot record is the first sector on the first track of the first side of the first platter. Refer to “Sectors.”
