- SOFTRAID MOUNTAIN LION HOW TO
- SOFTRAID MOUNTAIN LION INSTALL
- SOFTRAID MOUNTAIN LION FULL
- SOFTRAID MOUNTAIN LION SOFTWARE
With a single SSD hooked up, the ASMedia is the faster of the three, but when using both drives of the array on that same ASMedia card, there is almost no increase in performance, because a single SATA 3 connection running full tilt is enough to use all the bandwidth available via the x1 PCIe 2.0 connection. So as an example, I have Intel SATA 2, Marvell SATA 3 on-board and PCIe 2.0 x1 ASMedia SATA 3 card. Keep in mind, since they are both read and written to at the same time, your bandwidth will be limited to that of your slowest connection, but since they are both reading and writing at the same time, the combined load on that bus can also be a factor. Picking which controllers to put your drives on will largely depend on your hardware. That's it, if done right you should have working, bootable RAID-0. Now you can have either drive listed as your boot device in BIOS, and pick either Boot OSX partition from Chameleon's boot menu, and your RAID will boot either way.
Here's what mounted Boot OSX partition should look like: Rd=uuid boot-uuid="UUID of your RAID array here, use Disk Utility and select array then Get Info" In /Extra folder of each "boot OSX" partition, in, you must include additional kernel flag f, or will get error "mach_kernel not found". OSX cannot boot without kernel cache, i.e.
SOFTRAID MOUNTAIN LION INSTALL
Now use CarbonCop圜loner or similar to clone your working Mountain Lion install over to the RAID array.Ĭhameleon will need to be installed to each drives hidden "boot OSX" partition along with /Extra on each and kernel cache will be built on each. Here's how it should look, I enabled Disk Utility to show hidden partitions not normally visible. When prompted, choose whatever block size you want to use, default value recommended. Boot into that drive.īuild array in disk utility. So you'll need an extra drive with Mountain Lion installed.
SOFTRAID MOUNTAIN LION HOW TO
You also wan't to only make your Mountain Lion RAID while booted into Mountain Lion, as Lion or older versions will not know how to properly make the kernel caches and the array will not be bootable.
I've been able to instead restore from a Time Machine backup onto the new array by booting into the Mountain Lion Installer, but others have received the same Recovery Partition error when trying this as well. So.įirst we need something to put onto our array once we make it, and using the Mountain Lion Installer to do a clean install to your RAID, will result in an installation failure when the installer complains about not being able to make a recovery partition on a RAID.
SOFTRAID MOUNTAIN LION SOFTWARE
Although I don't recommend swapping your configured RAID array drives around to different ports, one benefit of software RAID is you can with little chance of a problem, unlike HW RAID where it's bound to that controller. Picking which controller or controllers to use is a major factor in what your final results will be, and any controller that is buggy, ejects drives randomly or causes any headaches now, don't use it or you'll probably regret it. While in the past RAID-0 helped to speed up the physical limitations caused by older rotational hard disks, on SSD drives with their faster read/write speeds, It is usually the SATA port of the controller that becomes the bottle neck, and splitting that bandwidth up can have dramatic results for some people. Time Machine or other backup is highly recommended. RAID-0 will stripe your data across 2 or more drives, which means if any one of them fails, you will loose your data. RAID-0 is built for speed and that's about it, so if you care about data parity this is not for you. A few things to keep in mind, first being that I am not responsible for any loss of data, loss of hair, or hardware damages if they were to occur. This guide is for setting up Apple software RAID-0 on any SATA controller or combination of controllers that support booting into OSX.
0 kommentar(er)
