Explaining Solid State Disks

This video explains how solid state disks (SSDs) are becoming an alternative to traditional hard disks, and highlights their advantages and disadvantages. It is produced and presented by Christopher Barnatt, author of ExplainingComputers.com, and Associate Professor of Computing and Future Studies in Nottingham University Business School.

Category:

Education

Tags:

• SSD
• Solid
• state
• disk
• SLC
• MLC
• future
• hard
• drive
• wear
• levelling
• christopher
• barnatt
• explaining
• computers

[creamie123]

Just a vital question:

SSDs vs HDDs lifespan: which can last longer? 2 parts of the question here:

1) What is the average life-span of each drive?

2) And what are the respective re-write limits of each drive?

Both parts of the question partially overlap, but they are different.

[explainingcomputers]

@creamie123 These are the key quns! An enterprise class hard disk (eg WD Caviar Black or Raptor) ought to last 5+ years, & performance will not decline over time (subject to fragmentation, which can be fixed). A modern SSD may last that long using TRIM. Eg Samsung claim a MTBF of 1.5 million hours for their latest SSDs, if also noting performance will degrade over time. For a HD the life and re-write limits depend far less on intensity of usage. But an SSD can more reasily be hammered to death.

[Ltb0b]

Disks....?

Drives*

:3 theres no discs?

[iRouRoui]

this guy is funny

[InfamousMobz]

SSDs are basically larger capacity Flash drives. Boom.

[A1234567890J1]

For your. Information. Servers. That run. The Cloud. Run on. HDD.

[wctwctwctwct]

Thank you!!

[MrDudeknows]

hello MR.BEAN



[jomelle012]

I was expecting an explanation on a more low/fundamental level.

[roadrash90]

Did he just come form the 80's?

[iamufreak]

This did not really explain anything when you really think about it. Really no information is given that explains the technology aside from that flash reference which I'm sure 99.999% of the people watching this have no idea what that means either.

[creamie123]

@explainingcomputers Nice! Thank you for the intelligent reply :)