raid 0

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Using 2 Sata or 2 IDE harddrives (same size). Is it possible to use
30 percent of both drives as raid0 and use the other 70 percent as
regular drives (ie partitions for D on one drive and E on the other
drive). Or do both drives have to be 100% raid.

Checked the web but wasn't able to find an appropriate answer.

Board is a p4p800 dlx running XP sp1

Thanks again
Locust.
 
end said:
Using 2 Sata or 2 IDE harddrives (same size). Is it possible to use
30 percent of both drives as raid0 and use the other 70 percent as
regular drives (ie partitions for D on one drive and E on the other
drive). Or do both drives have to be 100% raid.

Checked the web but wasn't able to find an appropriate answer.

Board is a p4p800 dlx running XP sp1
Click to expand...




RAID0 is striping data across two or more physical hard drives. You either
use RAID0 or you do not use it.

A B C D E F G H I
1 2 1 2 1 2 1 2 1 2

where A-I is data being written and 1,2 are physical drives.

Create the RAID0 array as directed by the Asus manual. Partition and format
any way you'd like.
While RAID0 can be quite fast, if drive fails, your array is toast. Regular
backups are very important.
 
Using 2 Sata or 2 IDE harddrives (same size). Is it possible to use
30 percent of both drives as raid0 and use the other 70 percent as
regular drives (ie partitions for D on one drive and E on the other
drive). Or do both drives have to be 100% raid.

Checked the web but wasn't able to find an appropriate answer.

Board is a p4p800 dlx running XP sp1
Click to expand...

What are you trying to accomplish by this setup? I.e., why are you
pursuing this? What is your goal for employing RAID 0?

To answer your question, though, you'd to create what you request you'd
need to either have a RAID controller that allowed partitioning spindles
and presenting them this way to the host. Or you'd need host-based RAID
software that would do it.

In general, I believe you'll find that most RAID controllers will only
"bind" entire spindles into RAID sets (I hesitate to say all, but I've
never seen one that will).

--- jls
The preceding message was personal opinion only.
I do not speak in any authorized capacity for anyone,
and certainly not my employer.
(get rid of the xxxz in my address to e-mail)
 
I m thinking about setting up a simple raid 0 at home to speed things
up a bit. However info that I have gathered so far indicates that
raids in general use the full capacity of 2 HD's (or more) and not a
part of it. Backups would have to be via HD's on another circuit or
connector (not as slaves).

Hate to loss the full capacity of 2*80gig drives for this (160gigs)
but.....

thanks for all the responces.
Locust
 
Life is tough :-)

as people have mentioned to you before - you either have a RAID or not and
raid 0 do not offer any protection, only a bit more speed. why not just get
two WD Raptors in single more (better yet, in raid 0)

raid over 4 drives is more fun :-)

Henrik
 
I m thinking about setting up a simple raid 0 at home to speed things
up a bit. However info that I have gathered so far indicates that
raids in general use the full capacity of 2 HD's (or more) and not a
part of it. Backups would have to be via HD's on another circuit or
connector (not as slaves).

Hate to loss the full capacity of 2*80gig drives for this (160gigs)
but.....
Click to expand...

Note that whether RAID 0 will actually provide performance improvement is
*very* dependent on the kind of activity and workload you run. Adding
multiple spindles to a configuration helps when there are multiple spindle
"users" active concurrently, or applications which can do multiple I/Os
concurrently.

A single user workstation running a single active application at a time
will typically not be much faster - you're doing one synchronous I/O at a
time, so adding more spindles shouldn't do much for performance.

Now, that said, there may well be some professional-grade software products
that have more intelligent algorithms, and use asynchronous I/O. But those
would tend to be fairly rare, and expensive.

If you're browsing the internet, using an office-type application, or even
playing a game, you normally wouldn't see much speedup, imho. And RAID-0
increases your probability of a hard-disk failure causing data loss (so
backups become even more important).

--- jls
The preceding message was personal opinion only.
I do not speak in any authorized capacity for anyone,
and certainly not my employer.
(get rid of the xxxz in my address to e-mail)
 
I always associated raid with higher speeds, up to 50 %. But what you
say is very true. It all depends on what is being run. As for games ,
I have 1 gig of ram, half of it gets used when games are played.

With all the valuable info recieved so far in this group I think that
I will put the raid option on the back burner for awhile.

thanks to all.

locust
 
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