Question on hotplug SATA controllers

Question on hotplug SATA controllers

[Peter Rabbitson]

Apologies for yet another off-topic thread :)

Since there has been some discussion about not-quite-server grade hardware, I 
would like to ask about your experience with SATA controllers that fully 
support hotplug. By fully support I mean I can pull a drive, have udev 
register it as missing, put it back in - have the device node re-appear in 
/dev. To date I am not aware of any consumer grade (i.e. can be found on 
newegg) controller/chipset which can actually do this. Does such a card exist?

Thanks

Peter

Re: Question on hotplug SATA controllers

[John Bridges]

On Fri, Jun 6, 2008 at 9:20 AM, Peter Rabbitson <rabbit+list@rabbit.us> wrote:
> Apologies for yet another off-topic thread :)
>
> Since there has been some discussion about not-quite-server grade hardware,
> I would like to ask about your experience with SATA controllers that fully
> support hotplug. By fully support I mean I can pull a drive, have udev
> register it as missing, put it back in - have the device node re-appear in
> /dev. To date I am not aware of any consumer grade (i.e. can be found on
> newegg) controller/chipset which can actually do this. Does such a card
> exist?
>

What about the AOC-SAT2-MV8?
http://www.supermicro.com/products/accessories/addon/AOC-SAT2-MV8.cfm

It's the least expensive 8 port card I've found.

Have the drivers progressed far enough to support hotswap? It didn't
work last year when I tried it, but I see there have been updates
made.

Re: Question on hotplug SATA controllers

[John Bridges]

On Fri, Jun 6, 2008 at 6:20 PM, John Bridges <john.bridges@gmail.com> wrote:
> On Fri, Jun 6, 2008 at 9:20 AM, Peter Rabbitson <rabbit+list@rabbit.us> wrote:
>> Apologies for yet another off-topic thread :)
>>
>> Since there has been some discussion about not-quite-server grade hardware,
>> I would like to ask about your experience with SATA controllers that fully
>> support hotplug. By fully support I mean I can pull a drive, have udev
>> register it as missing, put it back in - have the device node re-appear in
>> /dev. To date I am not aware of any consumer grade (i.e. can be found on
>> newegg) controller/chipset which can actually do this. Does such a card
>> exist?
>>
>
> What about the AOC-SAT2-MV8?
> http://www.supermicro.com/products/accessories/addon/AOC-SAT2-MV8.cfm
>
> It's the least expensive 8 port card I've found.
>
> Have the drivers progressed far enough to support hotswap? It didn't
> work last year when I tried it, but I see there have been updates
> made.
>

I just tested it with SUSE 10.3 x64 2.6.22.17-0.1

It worked fine hot plugging a 1TB Seagate drive, both plug and unplug.
So the drivers are now functional.

At under $15 per port for a 8 port card, that certainly is in the
consumer grade price range.

Re: Question on hotplug SATA controllers

[Michal Soltys]

Peter Rabbitson wrote:
> Apologies for yet another off-topic thread :)
> 
> controllers that fully support hotplug. By fully support I mean I can 
> pull a drive, have udev register it as missing, put it back in - have 
> the device node re-appear in /dev. To date I am not aware of any 
> consumer grade (i.e. can be found on newegg) controller/chipset which 
> can actually do this. Does such a card exist?
> 
> Thanks
> 

Everything intel since ich7, as well as, SIIs JMicron, Promises supports 
hotplug out of the box in modern linux (generally -  most of the 
hardware working under ahci driver in your linux).