Using RAID 0 with RAID 1 or just RAID 10

springy1989

springy1989

springy1989

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179
Hello guys...

I haven't used RAID before so have little knowledge with it, anyway as any normal person would do I started researching about RAID and learned what different arrays do, but I'm having a problem deciding between using RAID 0 with RAID 1 or just RAID 10? as I understand RAID 0 is striping data across 2 drives which basically means its the best performance array because data is read/written to both drives, though the downside is no redundancy which basically means if one drive dies you loose all data, so in this case I thought RAID 0 would be good just for my games, and then using RAID 1 for my operating system as this array has no striping so all my data will be safe if 1 drive dies, with the benefit that Read performance is improved since either disk can be read at the same time, meaning if one disk is busy the other is accessed, sounds great for windows in my mind, and then RAID 10 which is apparently the same as using RAID 0 and 1 together this is where my problem lies, as RAID 0 and 1 would use 4 drives so would RAID 10, what is better? am I just over thinking? or is there any beneficial difference between these 2 arrays?
 
I don't have a lot of practical experience with RAID arrays, but if you're using 4 disks have you considered RAID 4 or 5 as my understanding is that you'd gain more storage while retaining some redundancy. I think read performance would also be better, although write performance is reduced due to having to write the parity info (which I believe is compressed).

I know this didn't answer your question, but I'm not totally sure what your question was. Were you asking if RAID 1 + 0 is better than RAID 10 (which as you've said I believe is the same) or if RAID 0 is better than RAID 1? I only tried RAID 0, but it made me nervous as I was using old disks so was afraid one would fail and I'd lose the lot.

As you're probably aware I believe there are two ways of doing RAID 10 (although not sure if they're both considered RAID 10). You can stripe first and then mirror or mirror first and then stripe. I believe the second is best as it gives more redundancy.
 
OK just found out that RAID 10 eats storage it basically cuts your effective disk space in half since everything is mirrored (duplicated) for example if I buy 4 240GB SSD's which add up to 960GB I'll only get 480GB, I guess I'll choose RAID 0 and 1
 
GoogalyMoogaly said:
I know this didn't answer your question, but I'm not totally sure what your question was. Were you asking if RAID 1 + 0 is better than RAID 10 (which as you've said I believe is the same) or if RAID 0 is better than RAID 1? I only tried RAID 0, but it made me nervous as I was using old disks so was afraid one would fail and I'd lose the lot.
Click to expand...

Was asking if RAID 1 + 0 is better than RAID 10 as I'll be using both raid 1 and 0 at the same time.

GoogalyMoogaly said:
As you're probably aware I believe there are two ways of doing RAID 10 (although not sure if they're both considered RAID 10). You can stripe first and then mirror or mirror first and then stripe. I believe the second is best as it gives more redundancy.
Click to expand...

I'm sorry forgot to mention witch one first, I would agree with you, mirror then stripe as you said it gives more redundancy 1 + 0 will be my choice.
 
Last edited:
springy1989 said:
OK just found out that RAID 10 eats storage it basically cuts your effective disk space in half since everything is mirrored (duplicated) for example if I buy 4 240GB SSD's which add up to 960GB I'll only get 480GB, I guess I'll choose RAID 0 and 1
Click to expand...

RAID 1 does the same thing as 1 drive is just mirroring the other, so you lose the space from that drive. So it doesn't matter if you go RAID 10 or RAID 0 + RAID 1 you'll lose space.
 
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