How does it wreck it at all? Its just like having a folder for music, a fodler for games etc.
I could understand if i was using them as if they were seperate drives and putting stuff that would be accessed at the same times on the different partitions, but even then, if it wasnt partitions itd all still be on the array.
It defeats the idea of having a RAID array for speed.
But as has been pointed out, its Mirrored & Striped more for ]safety than speed so thats fine.
However, to add on to the answer, if you have a RAID array with multiple partitions, and you access data from 2 partition at the same time, it will slow it down to the same speed as a normal single drive anyway.
So, if oyu have Windows on the same array, then taht will be accessing most of the time, and couple that with accessing from multiple partitions and the whole thing will be fartily slow and get bogged down when put under any real load, because at the end of the day, there is only the one array.
While on the other hand, if one drive was used for Music, and another drive for Movies and another for Games etc, then the user can happily use multiple drives to do multiple jobs at the same time and sufern no slowdowns.
For example, my setup :-
I download torrents all the time to my M:, thats an 80GB and it only does downloads nothing else.
C: is another 80GB and has only Windows and some utilties like defraggers, A/V and so on.
D: is a 320GB and that has my Programs and Games
E: is my Media Drive, and thats a 400GB
F: is a 120GB and thats got filled with loads of stupid junk, webpages, my docs, saved junk from insternet, pictures and what-not.
Now, I save all my older stuff to my Server, and so these drives are ( while close to full ) large enough for my everyday useage.
Now, I use D: as a temporary storage for converting my AVI Files to DVD, and so, what I have, is a load of AVI Files off my Camera stored on E:, getting converted and then stored on D: in DVD Format.
I am downlaoding permanently, my Linux ISOs and such onto M:, I am also burning 3 DVDs at the same time with data from D:, and perhaps the fourth Disk is a Linux ISO that I downloaded last night, I am also defragging Drive C: because it needs to and guess what? - I am also playing Dawn Of War SoulStorm.
Even more importantly is that I have not had any slowdown at all.
Could I do that on a single RAID array? - could I hell. Not without suffering massive slowdowns.
Thats what I mean.
I have OS + apps/games on one drive in two partitions
then the rest, which is largely storage, I wont be reading from the array while writing to it, and the only things i would be using on it at the same time - say music while installing something from it, or working on files on it - is largely negligable and still gives me much more performance than a single drive.
Where I work, we partition up our raid arrays, since we have massiver servers running huge arrays and then its just this partition is the main shared network drive, this partition is for this server thats running on that box etc
Again, it depends on what you need to do. I need to access lots of junk in both directions from multiple sources and so a single array with multiple partitions simply does not work for me. As much as I have tried and tried various ways, it just isnt worth it.
My server has one array yes, but thats only a Mirrored array and since I only really dump files to it and from it as a temoprary storage more than a Server as such, this is possibly the most sensible option for me, but when I actually use it and try messing about with it, its quite sluggish at times because Windows is on the same array.