@ShazaLondon Just Stats, having 4 drives in raid has a higher failure rate than 1, because there are 4 drives that can fail instead of 1. If one drive goes you lose all functionality because you just lost 1/4 of your OS as Raid0 fragments the data across all the drives.
3:50 raid 0 only needs two disks, why do you have 4 of them? i have 4 disks as well but its in raid 10
or you could skip all this and get a ssd.
and for anyone that has the thought, no there is no point fo putting two ssd in raid 0, why? its the same as people with 16000 dpi mice, the human eye cant pick up anything over 1600 (without surgery to make your vision better than 20/20) and anyone telling you different is lying. same logic here as far as the marginal increase in raid 0 ssd
@TENNSUMITSUMA Raid0 needs at least 2 disks so you can use 2 or more. The more you have, the faster total speed. Assuming that controller will manage. But the more hdds the bigger the failure possibility. On the part about raiding SSD I will partially disagree. Most people wont benefit, a thing, but some can use huge IOPS (databases) or linear speeds (video editing), and both can be improved by raiding SSD. Some people do it just for sport or their EGO ^_^. SSDs like OCZ Revo are already raided.
@TENNSUMITSUMA Yeah you can. 3 4 or more. How? Depends on motherboard. And OCZ RevoDrive contains an PCI-E to PCIX controller, then PCIX Raid Controller, and to it there are two Sandforce controllers connected and set-up as raid0. You can even change it to raid1 if you want. Newer OCZ RevoDrive X2 has even 4 SF controllers. So basically OCZ RevoDrive is a PCI-E SSD build out of 2 or 4 depending on model Vertex2 SSDs raid0ed together. Similar stuff with OCZ Ibis. Thou this is 3.5" HSDL SSD.
And one more thing. Burst test, in general test speeds of disk cache. So in most cases its cache read/write speeds (which for most hdds is betwen 150-250MB/s). SSD sometimes don't have cache. And for raid its sometimes even GB/s. All I can say, looking on the graph you shown, is that you used 4 drives to achieve speeds of old gen SSD (linear) with a lot worse IOPS/Access time that SSD. Even good 7200rpm drive hits similar results - you are probably bottlenecked by your controller.
I liked your vids about painting. But this one is crap. First of all, you compare raid of 4 hdds with crappy speed and twice bigger access time that WD Vraptor. Not to mention SSD drives. For OS most important is IOPS (4k files) on random, and access time. VR hits around 6-7ms, ssd 0.1ms, your raid 15ms... Only thing for which raid0 of normal hdds is good is when you rely on linear (sequential) speeds. But then you hit 150MB/s - my 2TB eco 5400rpm hits 140MB/s on start, 100MB avg so go figure.
@MrAleckazee yes you can put SSDs in RAID 0 and there is a speed increase. however for most people the speed increase is almost unnoticeable for the cost that they are at, it is probably not currently worth it
@SneakyPanda yes i know what raid stands for but your point is irrelevant. just because the name suggests that the discs are inexpensive doesn't mean they are, especially considering that whether something is "expensive" or not is relative. In my opinion and I'm sure this is shared by most people, 100 bucks for a decent HDD is actually quite a bit of money.
@MrAleckazee "I don't think you can put SSDs in RAID 0"
Yaaaah, you can throw many SSDs in raid 0, the only problem you may have is the on board chip set "the south bridge" slowing you down, Then you will need a raid card, and even they can be caped.
If you want, search for Linus Tech Tips on youtube, hes gotten 4 SSD at 1.5 Gs on a raid card, maxing that card out.
Its a wonderful thing really, If you have the money
1- no they dont have to be identical but they sure as hell should be
2- yes you can and the speed will increase (assuming your talking about raid 0). but for most the speed is unnoticeable. and when you look at the cost of ssd today, there is no point
3- they show up as one drive
4- raid 0 doesnt. all others do but since there is only 500 char limit, i say go wikipedia it to find out.
1) Its recommended to - Cuz raid is limited to speed of slowest drive, and size of the slowest (in Raid0, 1, 10, technically all of raids)
2) Yes you can make raid of SSD. And yes it increases speeds. But it costs a lot, and most users wont even spot a difference. Plus you lose Trim support.
3) Nope - raided drives are seen by OS as one big HDD.
4) Raid 0 doesnt prevent data loss. It even increases chance you will lose data. One drive fails - whole raid is screwed. Raid1, 5, 10 help here.
thanks for this video. I am in the process of setting up a RAID 0 configuration (just ordered 2 250g barracudas) to give me the needed hard drive speed for capturing HD videos from my xbox360.
How much faster would 2 drives in RAID 0 be, over just a single drive?
try raid 1
zardoz53 1 week ago
comparing burst rate is sure for nothing. don't do that, thanks! and btw - it's megabYtes, not megabits
MuF123 7 months ago
Comment removed
GOLDxDEAGLE 6 months ago
@MuF123 Megabytes and megabits are different things so it can be both
GOLDxDEAGLE 6 months ago
@GOLDxDEAGLE yea I know, but I don't understand why did you reply to my comment without watching the video :)
MuF123 6 months ago
Does raid actually make a fail more likely or is it just that once a drive dies fail data of all drives is lost ?
ShazaLondon 7 months ago
@ShazaLondon Just Stats, having 4 drives in raid has a higher failure rate than 1, because there are 4 drives that can fail instead of 1. If one drive goes you lose all functionality because you just lost 1/4 of your OS as Raid0 fragments the data across all the drives.
nisher15 6 months ago
it's Redundant Array of INDEPENDENT Disks
bjuszczak6 7 months ago
@bjuszczak6 redundant array of inexpensive disks is a joke. im sure he just googled what it meant and got the joke version.
superrrrmann 7 months ago
@superrrrmann I know, but professional people use that a lot in youtube vids when saying what it stands for so time to correct some :D
bjuszczak6 7 months ago
@bjuszczak6 lol :P
superrrrmann 7 months ago
I have a MacPro with 4 drive bays (1T byte each) could I set these up as a raid and should I?
HOODYWOODRECORDS 8 months ago
3:50 raid 0 only needs two disks, why do you have 4 of them? i have 4 disks as well but its in raid 10
or you could skip all this and get a ssd.
and for anyone that has the thought, no there is no point fo putting two ssd in raid 0, why? its the same as people with 16000 dpi mice, the human eye cant pick up anything over 1600 (without surgery to make your vision better than 20/20) and anyone telling you different is lying. same logic here as far as the marginal increase in raid 0 ssd
TENNSUMITSUMA 8 months ago
@TENNSUMITSUMA Raid0 needs at least 2 disks so you can use 2 or more. The more you have, the faster total speed. Assuming that controller will manage. But the more hdds the bigger the failure possibility. On the part about raiding SSD I will partially disagree. Most people wont benefit, a thing, but some can use huge IOPS (databases) or linear speeds (video editing), and both can be improved by raiding SSD. Some people do it just for sport or their EGO ^_^. SSDs like OCZ Revo are already raided.
Eversor86 8 months ago
@Eversor86
you can put more than 2 in raid 0? how, my board didnt let me do that. or is it only the best boards.
how are the ocz already raided?
TENNSUMITSUMA 8 months ago
@TENNSUMITSUMA Yeah you can. 3 4 or more. How? Depends on motherboard. And OCZ RevoDrive contains an PCI-E to PCIX controller, then PCIX Raid Controller, and to it there are two Sandforce controllers connected and set-up as raid0. You can even change it to raid1 if you want. Newer OCZ RevoDrive X2 has even 4 SF controllers. So basically OCZ RevoDrive is a PCI-E SSD build out of 2 or 4 depending on model Vertex2 SSDs raid0ed together. Similar stuff with OCZ Ibis. Thou this is 3.5" HSDL SSD.
Eversor86 8 months ago
And one more thing. Burst test, in general test speeds of disk cache. So in most cases its cache read/write speeds (which for most hdds is betwen 150-250MB/s). SSD sometimes don't have cache. And for raid its sometimes even GB/s. All I can say, looking on the graph you shown, is that you used 4 drives to achieve speeds of old gen SSD (linear) with a lot worse IOPS/Access time that SSD. Even good 7200rpm drive hits similar results - you are probably bottlenecked by your controller.
Eversor86 9 months ago
I liked your vids about painting. But this one is crap. First of all, you compare raid of 4 hdds with crappy speed and twice bigger access time that WD Vraptor. Not to mention SSD drives. For OS most important is IOPS (4k files) on random, and access time. VR hits around 6-7ms, ssd 0.1ms, your raid 15ms... Only thing for which raid0 of normal hdds is good is when you rely on linear (sequential) speeds. But then you hit 150MB/s - my 2TB eco 5400rpm hits 140MB/s on start, 100MB avg so go figure.
Eversor86 9 months ago
i have 2 western digital caviars, 931gb total... raid 0. burst speed is 1441.3mb???
traineespark 9 months ago
will it run minecraft?
frozenskipper 10 months ago
NIce setup man. I also have raid 0 with 4 hd its the most worthy upgrades ever.
screenieman 11 months ago
Did you use an onboard controller or did you buy an external one?
MrAleckazee 1 year ago
omg, it;s pronounced like "tac"
yutwob 1 year ago
NOOB
RAID = REDUNDANT ARRAY OF INDEPENDANT DRIVES
NOT ""INEXPENSIVE"" !!!!!!
hexstaticleon 1 year ago
@hexstaticleon you mad bro?
jonbobizal 1 year ago
@hexstaticleon That is what it is called now yes, before it was called redundant array of inexpensive disks.
But I guess there's always people like you and me who needs to call people out eh? Except you don't seem to know the story ;)
Arshin87 1 year ago
Raid can only be used by identical hdd ?
Can raid be used with SSD's and does it increase the speed even further ?
Do the raid drives show up as one drive in windows or 4 separate drives ?
How does it protect from data loss ?
Thanks alot.
HAWX9 1 year ago
@HAWX9 Correct me if I'm wrong but I don't think you can put SSDs in RAID 0, you probs can but wouldn't see a speed increase.
It comes up as 1 drive not 4
RAID 0 doesn't protect from data loss, in fact it increases the chance of failure. RAID 1 and onwards protects from data loss
MrAleckazee 1 year ago
@MrAleckazee yes you can put SSDs in RAID 0 and there is a speed increase. however for most people the speed increase is almost unnoticeable for the cost that they are at, it is probably not currently worth it
theyAREnoONE 1 year ago
@theyAREnoONE
redudent array of INEXPENSIVE discs
:(
SneakyPanda 1 year ago
@SneakyPanda yes i know what raid stands for but your point is irrelevant. just because the name suggests that the discs are inexpensive doesn't mean they are, especially considering that whether something is "expensive" or not is relative. In my opinion and I'm sure this is shared by most people, 100 bucks for a decent HDD is actually quite a bit of money.
theyAREnoONE 1 year ago
@SneakyPanda sorry i meant more like 200 for a decent sized SSD not HDD.
theyAREnoONE 1 year ago
@MrAleckazee "I don't think you can put SSDs in RAID 0"
Yaaaah, you can throw many SSDs in raid 0, the only problem you may have is the on board chip set "the south bridge" slowing you down, Then you will need a raid card, and even they can be caped.
If you want, search for Linus Tech Tips on youtube, hes gotten 4 SSD at 1.5 Gs on a raid card, maxing that card out.
Its a wonderful thing really, If you have the money
drmurda 1 year ago
@HAWX9
to answer your questions
1- no they dont have to be identical but they sure as hell should be
2- yes you can and the speed will increase (assuming your talking about raid 0). but for most the speed is unnoticeable. and when you look at the cost of ssd today, there is no point
3- they show up as one drive
4- raid 0 doesnt. all others do but since there is only 500 char limit, i say go wikipedia it to find out.
TENNSUMITSUMA 8 months ago
@HAWX9
1) Its recommended to - Cuz raid is limited to speed of slowest drive, and size of the slowest (in Raid0, 1, 10, technically all of raids)
2) Yes you can make raid of SSD. And yes it increases speeds. But it costs a lot, and most users wont even spot a difference. Plus you lose Trim support.
3) Nope - raided drives are seen by OS as one big HDD.
4) Raid 0 doesnt prevent data loss. It even increases chance you will lose data. One drive fails - whole raid is screwed. Raid1, 5, 10 help here.
Eversor86 8 months ago
Please do a raid5 and or 6 version of this video ^^
Btw, what controller was used?
produKtNZ 1 year ago
thanks for this video. I am in the process of setting up a RAID 0 configuration (just ordered 2 250g barracudas) to give me the needed hard drive speed for capturing HD videos from my xbox360.
How much faster would 2 drives in RAID 0 be, over just a single drive?
AndehX 1 year ago
@AndehX
significant
TENNSUMITSUMA 8 months ago
thanks for the vid man :) well explained :)
iiSkittles 2 years ago
You explain everything so fluently
12GTA435 2 years ago