Hot Plug and LIBATA

["Mark Klarzynski" <mark.k@computer-design.co.uk>]

Forgive me as I am sure that this has been asked a 100 times and that
the answers are all there to be found, but I am a newbie to Linux and
all my experience is within the design of hardware raid. So I have to
resolve this, but have come to a dead end.

I have a problem hot-plugging a sata drive and have gone through the
following steps:

1 - Initially I was using a standard Linux 2.4.27 kernel and the Silicon
Image 3112A's presented the sata drives as HDx.  Although the drives
functioned fine, hot plug was not possible.

2 - I discovered LIBATA and as it is clearly superior and now presented
the drives as SDx.

3 - I could now use a bunch of newer found commands (such as # echo scsi
remove-single-drive..)  to add and remove the drives. this works as long
as I do not physically remove the drive.

4 - if I physically remove a drive, the system hangs when I do an echo
scsi add-single-drive..


I am presuming (and it is only a presumption) that LIBATA somehow cannot
rescan the sata bus. does anybody know of a workaround / fix /
suggestion or decent outlet for a tranquilizer?



Thank you