Cameron Chisholm
Member
I was configuring a laptop and it said RAID an extra £9. Plz can somebody tell me what it is, thanks
What is RAID
- Thread starter Cameron Chisholm
- Start date
baron75mk2
Banned
Raid is a system where you can use multiple HDDs in several different ways , cant remember all the titles but 2 of them , 1 is where you effectively join two together & the data is halved between the two drives (the bios does all this trough its raid controller) , resulting in faster throughput (read & write times)
In this method the volume of both disks is put together & effectively doubled (so if you had two 1tb drives & raided them together you would have 1 2TB drive in windows (windows doesnt know any different , the raid controller reports just one drive to windows)
Problem is with this if one drive goes down then its game over as half of the data is no longer assessable
(so there is no redundancy at all)
The other method is where you have 2 (or more) drives & the data is written to both at the same time , so its effectively like having an instant back up , everything you do on the pc is written to both drives , so if one goes down , just boot from the other , this is know as 100% redundancy.
But with this option you will not double the capacity , it will be the same , so if you use 2X 1TB HDDS . you will only have 1TB usable (the other is the redundancy backup) & you dont get the extra performance with this option.
Theres lots of other RAID options available but its all a bit complicated for me to remember correctly , but these are the most important two options , the others are mixes & varients of these two .
In this method the volume of both disks is put together & effectively doubled (so if you had two 1tb drives & raided them together you would have 1 2TB drive in windows (windows doesnt know any different , the raid controller reports just one drive to windows)
Problem is with this if one drive goes down then its game over as half of the data is no longer assessable
(so there is no redundancy at all)
The other method is where you have 2 (or more) drives & the data is written to both at the same time , so its effectively like having an instant back up , everything you do on the pc is written to both drives , so if one goes down , just boot from the other , this is know as 100% redundancy.
But with this option you will not double the capacity , it will be the same , so if you use 2X 1TB HDDS . you will only have 1TB usable (the other is the redundancy backup) & you dont get the extra performance with this option.
Theres lots of other RAID options available but its all a bit complicated for me to remember correctly , but these are the most important two options , the others are mixes & varients of these two .
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