Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Desktops > Mac Pro

Reply
 
Thread Tools Search this Thread Display Modes
Old Nov 25, 2012, 03:30 AM   #1
benguild
macrumors 6502a
 
Join Date: Jul 2003
Software RAID 10 ... can you boot from just two of the drives?

I'm pretty sure that the Mac's built-in RAID feature is actually a 0+1 ... meaning that it's a mirror of two RAID-0s. Is that right?

So, in other words, one could boot from just the two if the second two drives were removed?

Just wondering. I'd have to check the IDs or positions of the drives in Disk Utility beforehand.
__________________
http://benguild.com
benguild is offline   0 Reply With Quote
Old Nov 26, 2012, 12:05 AM   #2
PowerPCMacMan
Banned
 
Join Date: Jul 2012
Location: PowerPC land
What exactly are you asking? It is 0+1 using Disk Utility.. anything over that would require an Apple RAID card which I don't recommend as they can't be used with Windows. A 3rd party RAID card from Areca can be used to RAID drives under Windows - IF AND ONLY IF WINDOWS IS ALL YOU WANT TO RAID. If you mainly use OS X and NOT WINDOWS, then the Apple RAID card would be a good solution for you.

So, what is the question?

Quote:
Originally Posted by smash View Post
I'm pretty sure that the Mac's built-in RAID feature is actually a 0+1 ... meaning that it's a mirror of two RAID-0s. Is that right?

So, in other words, one could boot from just the two if the second two drives were removed?

Just wondering. I'd have to check the IDs or positions of the drives in Disk Utility beforehand.
PowerPCMacMan is offline   0 Reply With Quote
Old Nov 26, 2012, 05:42 PM   #3
benguild
Thread Starter
macrumors 6502a
 
Join Date: Jul 2003
Quote:
Originally Posted by PowerPCMacMan View Post
What exactly are you asking? It is 0+1 using Disk Utility.. anything over that would require an Apple RAID card which I don't recommend as they can't be used with Windows. A 3rd party RAID card from Areca can be used to RAID drives under Windows - IF AND ONLY IF WINDOWS IS ALL YOU WANT TO RAID. If you mainly use OS X and NOT WINDOWS, then the Apple RAID card would be a good solution for you.

So, what is the question?
I'm asking if one were to remove two of the drives and attempt to boot the machine, would it work?
__________________
http://benguild.com
benguild is offline   0 Reply With Quote
Old Nov 26, 2012, 11:13 PM   #4
deconstruct60
macrumors 603
 
Join Date: Mar 2009
Quote:
Originally Posted by smash View Post
I'm asking if one were to remove two of the drives and attempt to boot the machine, would it work?
If you remove the correct two ( leaving behind the redundant pair for each removed drive ) then it will run. 0 + 1 or 1 + 0 doesn't make much of a difference. Which drives are in the "1" ( data stored on two drives ) is more important.

If used Disk Utility to set-up RAID 10 then can just select a HDD in the right and do a 'Get Info' (cmd-I ). In that info there will be disk indentifier number. Typically, those line up on a mac pro by bay number.
deconstruct60 is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > Mac Pro

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
2nd & 3rd drives in software raid... will I lose the raid if i reinstall my OS? ASFx Mac Pro 2 May 1, 2014 05:40 PM
Maverick installs with Raid-0 SSD boot drives -GOOD TO GO? whyrichard Mac Pro 4 Apr 9, 2014 06:02 PM
Software RAID 0 and Boot Camp? rk25123 Mac Pro 20 Jul 5, 2013 11:11 AM
Better NAS: Synology DS212j or Mac Mini with 2xUSB drives in Software RAID? glitch44 Mac Peripherals 9 Mar 27, 2013 10:44 AM
RAID 5: 6x 2TB drives or 4x 4TB drives? alphaod Buying Tips and Advice 10 Dec 21, 2012 12:23 PM

Forum Jump

All times are GMT -5. The time now is 07:55 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC