On Tue, 2006-01-31 at 21:47 -0700, JD Gray wrote: > I'm going to be purchasing some hard drives for a raid5 array. Better plan in a hotspare - the last batch of 160G disks I bought is dying at an alarming rate.
> I'll be > running them out of my gentoo fileserver. I've used md in the past for > raid0, but I know it's not a very robust solution as far as partition > resizing and the like. What do you suggest for a good raid solution? linux md for raid5, with lvm if you want. I get about 1% processor load on an athlon64 (and ~35% on a 500Mhz P3!) at "full speed", it's really nice. > I > haven't decided on an interface, though I'm seriously considering a > buying a SATA controller and going with that, but I could also use the > raid controller that's built on to my motherboard. Nooooo! ;-) Better use the linux md driver and use the disks directly. Less b0rkage, more speed. I've had quite good experiences with Promise TX2/TX4 controllers, but opinions differ wildly on this thing. > Thanks in advance > for the help. I think I want to go with software raid simply because I > will be able to transfer the raid to another machine when I decided to > upgrade that box. And if something breaks you can replace it, even migrating the whole array at once to another box (I did that, only needed a new kernel, but after boot *plop* raid back) I suggest you also think about failure-related problems - what if a disk dies? What if 4 out of 8 disks die within an hour? (I've seen that) Hmmm ... I hope I'm not scaring you :-) Good luck, Patrick -- Stand still, and let the rest of the universe move
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