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Another RAID question
- Thread starter Pooky
- Start date
stoke
Honorary Master
SPEED:
If you run RAID 0, then you make them 2 drives into one large drive.
But, the RAID configuration stores a bit on this drive, then a bit on that drive and then a bit on that drive and then a bit on this drive ....
So, when you write the data to the drive, the write is faster, cos 2 different devices are writing, and when you read, it's faster, cos 2 different devices are reading at the same time.
REDUNDANCY AND READ SPEED:
When you run RAID 1, you're mirroring everything, so, if one drive crashes, then WOOT, everythings on the other drive. And, as an added bonus, when you read, the controller reads parts form that drive, and parts from that drive, so reading is faster.
It gets more complicated.
If you run RAID 0, then you make them 2 drives into one large drive.
But, the RAID configuration stores a bit on this drive, then a bit on that drive and then a bit on that drive and then a bit on this drive ....
So, when you write the data to the drive, the write is faster, cos 2 different devices are writing, and when you read, it's faster, cos 2 different devices are reading at the same time.
REDUNDANCY AND READ SPEED:
When you run RAID 1, you're mirroring everything, so, if one drive crashes, then WOOT, everythings on the other drive. And, as an added bonus, when you read, the controller reads parts form that drive, and parts from that drive, so reading is faster.
It gets more complicated.
RAID = Redundant Array of Independant Disks or Devices.
Raid is primarily used for data redundancy - If you lose a drive, your data is still there, and you can have the faulty drive replaced and re-integrated to the raid array without losing your data...
There are different rail levels which serve different purposes.
Raid0 for instance splits your data across multiple drives (and allows you to access that data faster as you are getting little bits from multiple drives at the same time, instead of from one drive), but if you lose one of those drives, you lose all of your data.
Ok, thats enough spoon-feeding... Go google, or checkout Wikipedia!
Gah: Stoke beat me to it.
Raid is primarily used for data redundancy - If you lose a drive, your data is still there, and you can have the faulty drive replaced and re-integrated to the raid array without losing your data...
There are different rail levels which serve different purposes.
Raid0 for instance splits your data across multiple drives (and allows you to access that data faster as you are getting little bits from multiple drives at the same time, instead of from one drive), but if you lose one of those drives, you lose all of your data.
Ok, thats enough spoon-feeding... Go google, or checkout Wikipedia!
Gah: Stoke beat me to it.
stoke
Honorary Master
... me is a faster typer 
stoke
Honorary Master
Well, for raid 1 you have to have 2 identical drives, so, that's out of the question for you.
Your controller may not like your hard drives as well, just to make your life more interesting.
And, with a raid 0, if the set fails .. you're losing the entire 2 disks worth of data.
I would never use raid 0 unless it's for temporary stuff, i hate losing stuff.
I use RAID 1.
The speed improvement ... aaaarg ... the prufe is in the pudding.
Probably like just less than 1/3 faster read time.
Your controller may not like your hard drives as well, just to make your life more interesting.
And, with a raid 0, if the set fails .. you're losing the entire 2 disks worth of data.
I would never use raid 0 unless it's for temporary stuff, i hate losing stuff.
I use RAID 1.
The speed improvement ... aaaarg ... the prufe is in the pudding.
Probably like just less than 1/3 faster read time.
quovadis
Honorary Master
if you have 2 drives of different size but same speed u can run raid 1 but the partitions maximum size will be the size of the smaller disk if u run raid1
stoke
Honorary Master
If you want the speed improvement then the answer is no, it's not better to RAID them.
If you're fine with the default speed of the drives, then the answer is yes, it's better to NOT raid them.
I enjoy the just under 1/3 faster load time I get when a Battlefield 2 map is loading.
If you're fine with the default speed of the drives, then the answer is yes, it's better to NOT raid them.
I enjoy the just under 1/3 faster load time I get when a Battlefield 2 map is loading.
killadoob
Honorary Master
raid is amazing if you ask me 
things happen so much faster
but not more than 2 x 160 gig is advised
buy another 160 gig drive and raid 0 with 128 or 64k stripe
believe the performance of raid is so fast
just dont store important info on the raid disk
things happen so much faster
but not more than 2 x 160 gig is advised
buy another 160 gig drive and raid 0 with 128 or 64k stripe
believe the performance of raid is so fast
just dont store important info on the raid disk
Affirmative...!
Some of the more advanced controllers will allow you to get to that extra unused bit on the one drive, but to be honest, its easier, and cheaper to buy lots more drives!
