Would this RAID set-up make sense?

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29 Apr 2004
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Up until now, I've never used RAID but in the spirit of trying something new, I'm thinking of the following for a possible future build.

2x 74Gb Raptors in Raid 0 for O/S and installed apps/games. This array split into two partitions: 20Gb for O/S (C: drive) and 128Gb for installed apps (D: drive).

2x 320Gb 7200.10 Seagates in Raid 1 for storage (mp3s, important docs, isos, etc). This would be E: drive (320Gb)

The RAID 1 is obviously there for redundancy as I've never had a decent back-up strategy and this would give me some peace of mind.

I now have the following questions:

1) Do I understand correctly that for the RAID 0 array, striping two raptors wouldn't really show a noticeable benefit to game loading times or app speeds unless doing video editing or such like due to the limiting factor being seek/access times rather than transfer speed?

2) I rip all my games to isos on my storage drive so I don't need CDs and it's here that I 'm thinking having the raptors in RAID 0 might show some benefit. When installing isos from E: to D:, the improved RAID 1 read speeds on the storage drive, would make use of the improved RAID 0 write speeds? Is this correct?

2) Would the strategy of having a separate boot partition and installed app partition on the raptors be a good one?

3) What about the swap file, should I make another partition on the raptors for this or put the swap on C:, D: or E: ?

4) I'm planning on getting Vista as soon as it comes out but want to be able to boot it separately from XP whilst issues/drivers are sorted out. How difficult would this be to implement with the disk set/up above? Presumably I would want a further partition on the raptors to install vista on?

5) Could vista then share the installed apps folder (D: drive) with XP? (I'm assuming here that apps would need to be installed physically twice to this drive if they were to be used by the two different O/Ss rather than both O/Ss sharing the same install)
 
1. I thought transfer speed was the limiting factor which is why RAID0 shows an improvement.

2 - 1. pass

2 -2. I don't think there's any advantage to separating OS and apps.

3. The only time it's worth moving the swap file is when you have a completely separate physical drive to put it on. Otherwise it's competing with whatever else is accessing the drive so it doesn't really matter where it is although it's probably better nearer the outer edge which would be the boot partition.

4. Yes, an extra partition would be useful.

5. A very, very bad idea. You might get away with it if you're using the same version of the app for both OS but I really wouldn't want to try it.

Jonathan
 
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