Re: Anybody know about nforce4 SATA II hot swapping + linux raid?

[Molle Bestefich <molle.bestefich@gmail.com>]

Andrew Walrond wrote:
> I need to deploy some very resilient servers with hot swapable drives.
[snip]
> Before I place an order, I need to know whether sata II hot swapping is up to
> scratch in the linux kernel, and whether it works nicely with linux software
> raid (which I already use/am familiar with).
>
> Any knowledge greatfully accepted :)

IDE hotswap has never worked (OOTB at least) in Linux, and based on my
experience it never will.  Seems the IDE folks doesn't care a bit
about it.  (No offence meant.  Just keeping it real.)

So if you really need this, here's the opportunity to make a whole lot
of people happy by implementing it yourself.  You'll probably need a
lot of time on your hands - there's a very real chance that the IDE
maintainers are too busy or whatever to answer any newbie questions
you might have about how to attack the IDE layer.


Tejun Heo wrote:
> If you're looking for stability/resilience for production machine,
> IMHO libata isn't still quite ready.

I disagree...
I've used it for TBs of data without any problems.

OTOH, with the regular ATA stuff I've experienced loads of IRQ
problems, crashes and hangups.