Jeff Garzik <[email protected]> wrote:
> But anyway, to help answer the question of hardware vs. software RAID, I
> wrote up a page:
>
> http://linux.yyz.us/why-software-raid.html
>
> Generally, you want software RAID unless your PCI bus (or more rarely,
> your CPU) is getting saturated. With RAID-0, there is no duplication of
> data, and so, PCI bus and CPU usage should be about the same for
> hardware and software RAID.
Hardware RAID can be (!= is) more tolerant of serious drive failures
where a single drive locks up the bus. A high-end hardware RAID card
may be designed with independent controllers so a single drive failure
cannot take other spindles down with it. The same can be accomplished
with sw RAID of course if the builder is careful to use multiple PCI
cards, etc. Sw RAID over your motherboard's onboard controllers leaves
you vulnerable.
--Adam
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
