Lesson 9 Chapter 2 - Solid State Drive Technologies Flashcards
What are 3 of the several form factors available for SSDs?
- SATA
- mSATA
- M.2
Why didn’t using a SATA interface for an SSD work out to be the best option? What is SATA meant to interface with? (2)
SATA was meant for interfacing with mechanical HDDs, and SATA did not support the speed necessary for SSD technology
What does an mSATA look like and where did it connect to? (2)
- Looks like a bare circuit board
- Connects directly to a slot on the motherboard
What’s the difference between mSATA and M.2? (2) What interface does M.2 use?
- mSATA solved the fitting an SSD into a smaller space issue
- M.2 solved the smaller form factor AND takes advantage of SSD’s storage speed and parallel access by using the NVMe interface
Which is the most popular physical connector for the NVMe (Non-Volatile Memory Express) interface specification?
M.2
How is an M.2 card installed on the motherboard? (2)
- Parallel to the motherboard
- Secured with a screw
What buses can an M.2 interface use?
A variety, like PCIe and SATA (they can also be different lengths)
What does an M.2 slot with a printed motherboard label of Key B, Key M, or Keys B+M support?
Support mass storage devices
What does an M.2 slot labeled Key A and Key E support?
Wireless networking devices
Each M.2 motherboard socket has a ____
type
What does a Socket 3 M.2 socket type support and what is it used for specifically? (3)
- SATA
- PCIe (up to 4 lanes)
- Socket 3 is used for SSDs specifically
Each SSD module can use both SATA or PCIe bus. T or F?
False, can only use one or the other BUT some M.2 sockets support both (what it supports will be labeled on the motherboard under the Socket type like in the picture)
Why don’t SSD’s last forever?
They have a limit on how many times each memory cell can be rewritten before it stops being able to remember data (the limit is pretty high though like 150 TB-9 PB written before failure)
