Help About RAID

Toggle sidebar Toggle sidebar
LiquidCesium

LiquidCesium

Honorable
Aug 1, 2013
80
0
10,640
ok so when it comes to RAID i really suck at giving advice. This is because i have no clue what RAID is or how each level works. My question is...

1) Do you NEED raid for a Rig with per say... 4 HDD's
2) Which is the best RAID to go with for which use (Workstation, data protection, etc)
3) RAID 10?
4) How do you set it up
5) Does it apply to SSD's
 
Solution
laviniuc
1) can t hurt
2) 0 is speed, 1 is data protection, 5, 6 is a bit of both.
3) raid 10 is 0 + 1 so you get stripes cloned. you can lose at least a hdd completely and nothing bad happens. and if the one to fail from the other 3 is not the clone of the first then you can lose another one of the 3. you lose half of the total capacity and gain about 70% speed
4) bios settings, enable raid for sata controller then various key combination before windows start. there are options to do it in windows too but that's software raid instead
5) yes but it's not recommended. most raid controllers dont forward trim commands so it can greatly decrease the life of the ssd. instead of raid simply get a double sized ssd. internally it will do something...
Sort by date Sort by votes
laviniuc

laviniuc

Judicious
Nov 29, 2013
5,505
18
32,415
1) can t hurt
2) 0 is speed, 1 is data protection, 5, 6 is a bit of both.
3) raid 10 is 0 + 1 so you get stripes cloned. you can lose at least a hdd completely and nothing bad happens. and if the one to fail from the other 3 is not the clone of the first then you can lose another one of the 3. you lose half of the total capacity and gain about 70% speed
4) bios settings, enable raid for sata controller then various key combination before windows start. there are options to do it in windows too but that's software raid instead
5) yes but it's not recommended. most raid controllers dont forward trim commands so it can greatly decrease the life of the ssd. instead of raid simply get a double sized ssd. internally it will do something similar and the speed increases anyway.

5.a) the speed of the assembly gets bottlenecked by the sata speed - 600mb/sec for each drive and pciex conn of the controller 4x (about 2gb/sec total!)
 
Upvote 0 Downvote
Solution
LiquidCesium

LiquidCesium

Honorable
Aug 1, 2013
80
0
10,640


Since you seem to know alot about this stuff. Can i use SSD caching in sync with raid and what would be the best for speed, no worry if i lose a drive, and data protection... does such a golden combination exist?
 
Upvote 0 Downvote
laviniuc

laviniuc

Judicious
Nov 29, 2013
5,505
18
32,415
for a workstation or server or nas in a company, yes, it makes sense to have atleast a raid 1. for personal use and non critical data i'd say not to bother. get an external hdd instead and backup the data you need regularly. and stick to a standard 2 tier, (240ish ssd + normal big single hdd - couple of tb's). backup your important data regularly - once every 1-2 months. the chance of a drive failing without notice is slim. you should feel when it's about to fail.

also, the chance to fail of a hdd is like curve, it should fail either in the first couple of weeks or after 4-5 years. so keep it under lookup at first.

raid 0 existed because hdd performance didnt keep up with the pc improvements. now with ssd s it doesnt make that much sense any more.

i have to be honest i dont know if the ssd caching works together with a raid setup - never tried it. i fear it may not.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom