5,1 Mac Pro Internal Raid 1+0

[Ty Maier]

Well... this thread got busy! I ended up creating it via Terminal. It was quick and the raid seems stable. I'll report back if it becomes faulty!

 

[jake blackstone]

It's not obvious to everyone. Steve Grevis in this thread suggested that the only solution was to use hardware RAID or software RAID using 3rd party software SoftRAID. Ty Maier, who is the OP, didn't know either. You yourself even suggested it would require pre-Yosemite OS X with no mention of "hey you can do it in Terminal", even though the OP stated he's using El Capitan. There was no mention of using Terminal until I said it was possible. So I was not stating the obvious. Maybe obvious to you, but not necessarily to everyone else, since there was clearly people participating in this thread that were unaware of the ability to still create a software RAID with Terminal command in Yosemite and El Capitan.

Not everyone is familiar with what terminal commands are possible in Unix, Linux, or OS X. And this isn't Linux or Unix. This is OS X, and yes it's based on Unix, but the fact that Linux requires more commands has no bearing here. It just confuses the discussion for people who don't know how easy it is to do in OS X with a different command (appleRAID) that isn't even in Linux.

There is no difficulty in understanding anything. You said "stating the obvious" which is wrong. You also said "Yes, that is EXACTLY what I said..." which is wrong because what I said and what you said were 2 completely different things. The OP wanted to create a software RAID. Telling him that he can still read a pre-formatted RAID in El Capitan that was made pre-Yosemite wasn't helping him. He needed to create the RAID in El Capitan, which could be done using Terminal (or the hack that Blair subsequently linked to).

Then talk to Steve Grevis, because I had never suggested, that an ability to create volumes though the Terminal was removed. You're clearly missing the point. So, I'll give you another example. May be that will help.
Even though since LionOS, the fstab had been depreciated, you still can create etc/fstab and use it, if you like, thanks to the underlying BSD technology. Using fstab can be advantageous at times, when you want to use drive's UUID, to create a mounting point or even allow to read drives formatted as NTFS or EXT. Apple again removed the file, but the underlying technology is still there. I hope this helps you to understand.
Anyone familiar with Terminal commands, using it to create a volume is an obvious solution, hence you're statement is very obvious. Anyone not familiar with terminal's use, your suggestion to use it to create a volume wold be equally useless. So, again, your statement is obvious and useless at the same time depending on the audience.

 

[Mike Halper]

Then talk to Steve Grevis, because I had never suggested, that an ability to create volumes though the Terminal was removed. You're clearly missing the point. So, I'll give you another example. May be that will help.
Even though since LionOS, the fstab had been depreciated, you still can create etc/fstab and use it, if you like, thanks to the underlying BSD technology. Using fstab can be advantageous at times, when you want to use drive's UUID, to create a mounting point or even allow to read drives formatted as NTFS or EXT. Apple again removed the file, but the underlying technology is still there. I hope this helps you to understand.
Anyone familiar with Terminal commands, using it to create a volume is an obvious solution, hence you're statement is very obvious. Anyone not familiar with terminal's use, your suggestion to use it to create a volume wold be equally useless. So, again, your statement is obvious and useless at the same time depending on the audience.

And I thought the conversation was over....

Actually, yes you did suggest the ability to create software RAID volumes was removed when you said "Yep, Apple in it's infinite wisdom did drop software RAID capabilities from the Yosemite OS. But, it will still read the RAID from previous OS builds. So, if you have a pre-Yosemite OS, you can format the RAID and then you can use it on Yosemite." If the capability was removed from the OS, then it would not be possible even in Terminal. So you were wrong, as the capability still existed in the OS, just not in the Disk Utility GUI. How many times do I need to repeat that?

I think you're the one that doesn't understand. You're talking about something that has nothing at all to do with the conversation that the OP started here. "etc/fstab"? What does that have to do with this thread now? Are you just trying to flex some muscle to show how much you know?

Like I said before, I wasn't stating the obvious as the solution wasn't obvious to the OP and to at least one other person that posted in this thread. If it was obvious then the thread wouldn't have been started in the first place. And I wasn't suggesting using Terminal to create a normal volume, because that is easily done in the Disk Utility GUI. I was suggesting to use Terminal to create a software RAID, which is not possible in the Disk Utility GUI in El Capitan, and which the OP ended up doing after I posted the suggestion, and thus is not useless to the person that needed the information.

Again, it may be obvious to you, but not everyone here is as apparently knowledgeable of Unix, Linux, OS X, Terminal commands, etc. as you, and thus is not useless as you say. Just because it's obvious to you and is something you already know, doesn't mean it's useless information for someone else. And just because someone hasn't used Terminal before doesn't mean they can't go and use it now. There's no qualifier for someone to be able to open Terminal and run a few commands in it, especially when given a tutorial that explains everything step-by-step. So, again, not useless. You're just plain wrong. End of discussion.