Whose raid 0 array has actually failed them?

[screwd01]

backup and reinstall onto a regular hard drive config

i have different brand hard drives WD 120 and maxtor 80, so im losing 40 gigs, and i'm using ide to sata converters. this array has been good for the last year and a half tho.

 

[Hajime]

-raises hand-

I've also had single hard drives fail me in droves.

 

[Anubis]

i have had 2 fail

<- is now RAID 5 for life

 

[deveraux]

Does your RAID 5 give you any noticable performance boost?

 

[Vegito]

RAID isn't for performance, its for data protection, the effect of using 3 drive gives you better read but really bad writes.. cheap raid 5 (software) will not give you better performance.. ur cpu is constantly calculating parity to the write, this will make it worse. Real raid 5 will be better in write but not much

 

[Anubis]

Originally posted by: deveraux
Does your RAID 5 give you any noticable performance boost?

a little but nothing huge, DO NOT DO SOFTWARE RAID 5

get a raid 5 controller , much much much better

and yes raid 5 is for data protection, i have had a drive in my array fail once just toss in a new one and rebuild the array, no data lost, sooo nice

 

[jvarszegi]

Originally posted by: Anubis

Originally posted by: deveraux
Does your RAID 5 give you any noticable performance boost?

a little but nothing huge, DO NOT DO SOFTWARE RAID 5

get a raid 5 controller , much much much better

and yes raid 5 is for data protection, i have had a drive in my array fail once just toss in a new one and rebuild the array, no data lost, sooo nice

Of course, if you do have a drive fail, performance becomes really terrible all of a sudden. That can actually be a useful thing, though-- I've had RAID 5 drives fail and walked out on the floor to check the situation because of performance, when the monitoring software we were using failed to report an error.

 

[deveraux]

Originally posted by: jvarszegi

Of course, if you do have a drive fail, performance becomes really terrible all of a sudden. That can actually be a useful thing, though-- I've had RAID 5 drives fail and walked out on the floor to check the situation because of performance, when the monitoring software we were using failed to report an error.

So if a drive fails in RAID 5 performance drops. But it'll be ok after you replace the drive right?

 

[Vegito]

Yes
ie

A+B = C
B+A = C

Say your B Drive dies
A+ ? = C
?+A = C

Now your disk doesn't know B, so to find B, the hdd will need to do C-A =B and give you that B part
that calculation slows the pc down.

Once you replace the drive, the pc spends time recalcuating B through out and that'll take a few hours as well..

 

[beatle]

Yup, I had one fail. Never again will I run RAID 0.

 

[Boonesmi]

i ran a raid 0 for about a year, no problems at all

 

[nineball9]

I'm running a SATA RAID-0 system, and have a PATA drive as well. Using Acronis True Image (Ghost would probably work too), I image the array to the PATA drive.

Sure enough, after 14+ months, one of the SATA drives failed. After removing the failed drive and resetting the lone working SATA drive as non-RAID, I simply restored the image to it. When the warranty replacement SATA drive arrived, I imaged the lone SATA drive, installed the new drive, created a RAID-0 array, and restored the image.

With Raid-0, one has a better chance of losing data due to a drive failure. But with a good backup system and/or a drive image program (I use both), data loss can be minimized.

 

[tweeve2002]

I must have been lucky i guess...I had one of my WD 120 drives fail after 3 years of use..Lost everythihng, but there was enough of my stuff on friends computers to make jsut about a full recovery. now I have another RAID 0 array that I back up to. The only thing I keep on the backup array is either backups of stuff that can be replaced.

 

[VTrider]

RAID 0 for 1 1/2 years - no probs. (2x120 WD)

 

[kranky]

Every single RAID 0 system will fail. Because every hard drive will eventually fail.

If you make backups of your important data, then you'll be fine. But there have been plenty of threads from people who had a drive fail in a RAID 0 setup and lost all their data. They didn't do anything wrong to cause a problem, but hard drives all die eventually.

People who know a lot about computers seem to have a blind spot when it comes to backups. As long as you realize that RAID 0 greatly increases your chances of losing all your data, then you know where you stand.

 

[ssvegeta1010]

You could be lucky and survive forever with RAID 0 but itd would be a good idea, as others have said, to have a backup.