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Dumb hardware RAID question - Mac, Windows, Linux

B

burntoc

n00b
Joined
Oct 15, 2011
Messages
7
Hey guys,

Been around here for ages but there is such good info I haven't posted in a long time. I need some help, though, because searching is turning up all sorts of info that isn't quite the answer to my dumb question. Here's the situation:

I built an i3 machine which will triple boot OS X, Windows 7 x64, and Ubuntu off an SSD. The system also has a RocketRAID 2640x4 card to which I've attached 3x2TB drives and created a RAID 5 array. I hope to use the array to store my movies and music to stream at 720p/1080p levels through my wired gigabit network.

I've created the array using the controller BIOS with 512b sectors because it sounds like it is better than the 4K performance-wise (they are all 4K drives don't know how this will pan out) and I set it to GPT/GUID instead of MBR.

Here is my question: do I create a partition in Windows, say NTFS, so that it will be recognized in all 3 OSes I plan to use? I think my other box, a NAS, abstracts the filesystem so each OS sees it okay, but I've never thought about the implications of doing this triple boot with a hardware raid controller. Clearly compatibility and performance are considerations. Thank you SO much in advance for any help!!

Mark
 
You are correct. If you partition and format the array for Windows & NTFS, all three OSes will be able to mount it and read & write to/from it locally. :)
 
Thanks, parityboy. And you think performance with that filesystem should be good (I mean, not overly impacted by the filesystem vs. other system factors).
 
There seems to be some performance issues writing NTFS with some versions of the ntfs-3g driver. Seems to be very CPU heavy, not sure of the exact details of the problem. I wouldn't be surprised if OSXs NTFS support was also based off this code, again not sure. If performance is a huge priority, I'd spend some time researching.

Also why exactly did you create an array with 512 byte stripes on 4K sector drives? I don't see the gain.
 
Yeah, I just did a quick read online and it seemed consensus was 512 gave better performance - in fact some were jumpering their WD EARS drives to have it emulate 512b.....Could be nothing to it.
 
Hi burntoc I have the same problem with you now I work on osx and linux (some window a bit) I tried to find many way to create raid system that working and good speed to linux and mac if you have some how to step by step I would to say thank you so much :)

thank in advance
 
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