[ltp] scsi vs ata ?

[Dmitry E. Mikhailov]

On Friday 20 June 2008 08:17:10 am Dan Sawyer wrote:
> Yes, the motivation was ultra bay hot swap. This works on DVD and CD
> drives. Hard drive installs work. However hard drive removal result in a
> hard kernel hang. The script gets to the beep successfully but then the
> hard hang. Unfortunately there are no log entries. (the latest kernel
> patches are installed)
>
> Is there a way to debug this?

Hot remove isn't just hardware. It's software too.

1) close files on this drive
2)unmount filesystems
3)flush caches
4)instruct kernel to remove SCSI device
5)do hardware steps to remove

If you don't do any of steps 1-4, kernel would wait for HDD forever and HDD 
wouldn't respond because it is just not there.

As you wrote, there's some sort of script. Please let me see it. Post here as 
an attachment or provide a link.


Best regards, Dmitry