Thanks for the tip Quentin and Garl This MoBo just has one promise chip, that I can see, so that leads me to assume its a Fakeraid, because a true RAID controller card has a lot more to it...kind of a dumb size matters approach, but I'll look into this.
Brian On Nov 16, 2007 1:42 PM, Garl Grigsby <[EMAIL PROTECTED]> wrote: > Quentin Hartman wrote: > > On Nov 15, 2007 9:29 AM, Ben Barrett <[EMAIL PROTECTED] > > > <mailto:[EMAIL PROTECTED]>> wrote: > > > > https://help.ubuntu.com/community/FakeRaidHowto ("Fake" raid is > > soft raid, nothing really fake about it) > > I don't know why software RAID does not get more respect these > > days. When processors were just babies, > > hardware raid was needed for reasonable performance, but now soft > > raid is really fast, unless you're comparing > > it with enterprise-grade NAS setups. IMO soft raid is fine for > > non-SCSI RAIDs :) > > > > > > Just a clarification on this point. Fakeraid is (every time I've seen > > it, anyway..) used to refer to raid cards that claim to have RAID, but > > actually offload all the raid functionality to the host machine via a > > driver. Most of these cards only have a firmware program to manage the > > drives, nothing else is done in hardware. Hence the name Fakeraid, it > > looks like hardware raid, but it's not, it's fake. This is also > > sometimes called firmware raid. A very small percentage (I only know > > of one) of these cards also have a hardware XOR engine for offloading > > the work required for Raid 5. Ooohhh... Fakeraid+ :) > > > > My rule of thumb is to use true hardware when it's available, and to > > require it in "important" servers. Failing that, I use software raid. > > You get 80-90% of the performance of hardware raid in most use cases, > > and management is consistent from machine to machine. The > > "middleground" Fakeraid gets you none of the performance advantages of > > true hardware raid since everything is offloaded to the host anyway, > > and introduces a whole bunch of vendor-specific complications, so I > > avoid it entirely. > I'll throw in a 'yup, me too'. Fakeraid is a tremendous headache waiting > to happen. Either go true hardware raid (if you've got the budget AND > you can afford to have a spare card on hand) or go software raid. > > garl > > _______________________________________________ > EUGLUG mailing list > euglug@euglug.org > http://www.euglug.org/mailman/listinfo/euglug > _______________________________________________ EUGLUG mailing list euglug@euglug.org http://www.euglug.org/mailman/listinfo/euglug
