[How to] install Leopard on a software RAID - Page 2

zephyroth · #11 02-21-2008, 05:32 PM

Strange ... Maybe I'm lucky.

Ianxxx · #12 02-21-2008, 06:15 PM

Maybe lol

gaz919 · #13 02-21-2008, 08:44 PM

Thanks for showing the baseline zeph.

So what do you think, any chance we could scrap up the hw raid driver. At the moment I have my main vista on A stripe raid on the nforce4, I mainly use it to record tv from a epg gide setup in Media centre. Im really liking using leopard on a extra ata drive i have, but when im using leopard I miss the recording of my shows.

I just installed VM Fusion and can use vista and the media center while in leopard thus letting me record my shows and use leopard at the same time, as long as I use a usbtuner.

The only letdown in this plan is at the moment having it all installed on a single drive is a major slowdown, and probably won't be able to record HD TV unless I can get it all onto the Raid stripe I have.

I really hope someone can port the nvraid driver to leopard before the next rev.

Thanks for any ideas you have.

zephyroth · #14 02-21-2008, 08:47 PM

i was wondering how hard it could be to make dmraid works on Mac OS ...

To boot into the software RAID you also can use the DVD but the kexts will be loaded from it.
That's why an already working installation is needed.

I'm trying to find another way ...

gaz919 · #15 02-21-2008, 09:37 PM

Ok I was wondering if a linux driver , which we could find that nv raid for linux would have anything to do with leopard driver. Maybe a cross between that and a regular raid driver from the install dvd would give us a working start.

If we could find a regular raid driver on the install cd, maybe we just need to patch the hardware device codes and tweek it a little.

By the way fusion runs great even on one ata drive, it has a unity setting that adds vista and leopard desktop together
Making a Leopsta desktop its pretty sweet all you apps and windows just open like any other program, and then the all minimise to the dock just like leopard apps.

HWRaid would make the install perfect, you would just wan't to go and get a quad core and The full 4gigs just to see how good you could get it!!

zephyroth · #16 02-21-2008, 09:49 PM

A step closer ... ZFS Software RAID .

As you can see performances are better !

gaz919 · #17 02-21-2008, 09:50 PM

DMRAID sounds cool. If you could get that working it would solve heaps of problems. There's plenty of info on the net about using it to get raid working on linux.

I hope you can get it working on Leopard.

gaz919 · #18 02-21-2008, 09:53 PM

The sequential is perfect more than double the base rate. That would make big file transfer fast within the array.

gaz919 · #19 02-21-2008, 10:05 PM

I found the info on installing ZFS in read/write mode, but its suggested that its a bit unstable and leads to crashes, probably when the disks loose sync, that happens about once every two months with my HWRaid array.

You'll have to test how stable it is to decide whether its worth adding to the install image.

Still hope there's some way to use the nvraid, though

zephyroth · #20 02-21-2008, 10:08 PM

I've not the skills to port dmraid from Linux to Mac (at least at the moment).

I don't know if you really take care of "Uncached read 256k" but its ... wow.

I will make a lot of tests with ZFS and see if it's really stable or unstable.