RAID Question

[MianoSM]

If I already have a 0 set up right now, 2x250gb hdd's.

I'm going to get 2 more 250gb's, and if I were going to mirror the other stripe, that would then be a 01 setup, right?

[Brian]

Yes.

Edit: FYI http://www.acnc.com/raid.html

[MianoSM]

I was using this page: http://en.wikipedia.org/wiki/RAID_10#RAID_10

Too many types of standards, striped mirrors, mirrored stripes, striping of mirrorred stripes, and them mirrors of striped mirrors......

I'm just going to make up my own designation for my RAID set up.

[Frankie]

What ever happened to good old RAID 5? It worked fine.

[...mikey]

Raid 0 is a waste of space, IMO.

[Frankie]

Raid 0 is a waste of space, IMO.

Not if you want to protect the data from hardware failure. I have two 300GB drives mirrored in my fileserver at home.

[...mikey]

You stripe to protect data?

...
..

Raid 0+1, 1, 5 aren't wastes. Raid 0 is.

[MianoSM]

RAID 0 is striping.....you mean RAID 1(mirroring), is a waste?

[Brian]

RAID 0 is striping.....you mean RAID 1(mirroring), is a waste?

RAID 0 is a waste, there is no redundancy. If one drive fails all data is lost. With 1 and 0+1 there is redundancy as there is a mirror for all drives being striped.

[MianoSM]

I get the lack of redundancy, I don't understand how it would be a waste of "space" though.

[...mikey]

Because the speed increase, unless you're on small drives, isn't worth the lack of drive space, IMO.

My 2 36gb Raptors are Raid 0'd. But I wouldn't stripe anything larger than 50gb.

I'd rather have the drive space.

[evelmunkey]

Because the speed increase, unless you're on small drives, isn't worth the lack of drive space, IMO.

My 2 36gb Raptors are Raid 0'd. But I wouldn't stripe anything larger than 50gb.

I'd rather have the drive space.

Raid 0 would utilize all drive space. Example... two 120GB raid 0 is 240GB worth of space... I think you might be mixing up raid 0 and the others.

[MianoSM]

Thank you.

[...mikey]

Raid 0 would utilize all drive space. Example... two 120GB raid 0 is 240GB worth of space... I think you might be mixing up raid 0 and the others.

Hrm, you're right.

[MianoSM]

Hrm, you're right.

Just so you know, you had me starting to wonder if I was still sane. :lol:

[Vito_Corleone]

What ever happened to good old RAID 5? It worked fine.

:werd:

I'm no RAID expert, nor do I have a lot of experience with it, but if I ever set an array up, it would be RAID 5.

[...mikey]

Just so you know, you had me starting to wonder if I was still sane. :lol:

Yeah I dunno, I swear when striping you lost the 2nd drives space. I hate raid.

[Brian]

Yeah I dunno, I swear when striping you lost the 2nd drives space. I hate raid.

Nope, that's Mirroring. Raid 1

http://www.acnc.com/raid.html

[...mikey]

Yeah, I thought it was for 0 also.

I think due to putting the data on both drives, or something along those lines.

[MianoSM]

RAID 0 = Striping data, which is basically the opposite of partioning 1 drive.
RAID 1 = Mirroring data, so that both drives are identical - thus if one fails, the other is a perfect back up.

RAID 01 = a Striping of a Mirrored pair.
RAID 10 = a Mirror of a Striped pair.

RAID 5 = Parity, meaning you need at least 3 drives, and there in lies the devil, because now you can have one drive fail, but the other two would now have to be perfect. You can have up to an unlimited # of drives though, which would def. help you out.