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Re: Hot plugging of SATA disks doesn't seem to work under NetBSD-4.x?
On Tue, 15 Apr 2008 09:23:26 am John Nemeth wrote:
> In general SCSI disks aren't hot pluggable unless they're hanging
> off a hot pluggable bus such as Cardbus or PCMCIA (or inside a RAID
> enclosure where the RAID controllers deals with drives coming and
I just noticed Thor's email as I hit reply ...
I thought I'd mention that in my experience, most enclosures or hot swap
bays/backplanes are just extensions of the controller. I believe there are
power filtering components and connectors designed for this specific purpose
but there are no additional 'smarts' involved.
> Note that in general, hot plugging SCSI devices can do bad
> things. You should only do it if they are in an enclosure designed for
> hot plugging.
I'd tend to agree here but the original poster didn't ask for advice on
whether they should or shouldn't. It is definitely worth while having bays
designed for this purpose however, be it sata or scsi.
> SATA drives aren't currently hot pluggable.
I'm not sure of the software requirements, and I loathe to pull a drive from
my raid to personally find out if it is possible ... but are you definitely
sure? Is it stated somewhere?
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