Re: FreeBSD & Hot pluggable disks (SATA?)

* Dag-Erling Sm?rgrav (des@xxxxxx) wrote:

It is a function of the disk controller and driver. AFAIK, the ata
driver supports hot-plug as long as the SATA controller does. I
believe most Promise and Intel ICH SATA controllers do, not sure about
Sil or nVidia MCP.

Both SiI and nForce's should support hot-swap, though if ata(4) actually
handles them correctly is another matter.

I have an nForce 4 Pro board (a Tyan K8WE, CK804 chipset) which in
FreeBSD gracefully handles hot removal, but needs a reboot to correctly
recognise hot-plugged devices. I thought I'd filed a PR about it, but I
can't seem to find it...

I also have an 8 port Marvell SATA controller (88SX6081) which needs an
atacontrol reinit to pick up new devices, but otherwise seems to work
fine.

--
Thomas 'Freaky' Hurst
http://hur.st/
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