Well, I'm glad you found the problem.
I'm upped the default from 180 to 300 in the 1.37 mtx-changer script,
but you might also want to take note that the latest script is a bit less
system dependent:
wait_for_drive() {
i=0
while [ $i -le 300 ]; do # Wait max 300 seconds
if mt -f $1 status | grep ONLINE >/dev/null 2>&1; then
break
fi
# echo "Device $1 - not ready, retrying..."
sleep 1
i=`expr $i + 1`
done
}
On Monday 25 July 2005 19:25, Alan Brown wrote:
> On Mon, 25 Jul 2005, Alan Brown wrote:
> > The script default is 15 seconds.
>
> More tests showed the problem.
>
> A formatted (erased or written) LTO2 tape loads in 14 seconds.
>
> An unformatted (new blank) LTO2 tape loads in 16
>
> > Clearly this is long enough if the tape has something on the start, but
> > not long enough if it's blank.
>
> By a whole 1 second! Who would have thought it?
>
> I've checked this across a selection of unformatted and formatted tapes on
> 2 different drives and it's fully consistent.
>
> The mods to mtx-changer to achieve the check:
>
>
> --- mtx-changer.old 2005-03-16 13:14:46.000000000 +0000
> +++ mtx-changer 2005-07-25 18:06:19.000000000 +0100
> @@ -42,13 +42,16 @@
> # the $(seq 180) to $(jot 180) -- tip from Brian McDonald
> #
> wait_for_drive() {
> - for i in $(seq 180); do # Wait max 180 seconds
> + cycles=0
> + for i in $(seq 300); do # Wait max 300 seconds
> + cycles=`expr $cycles + 1`
> if mt -f $1 status | grep ONLINE >/dev/null 2>&1; then
> break
> fi
> # echo "Device $1 - not ready, retrying..."
> sleep 1
> done
> + echo "Device $1 ready in " $cycles " seconds."
> }
>
>
> @@ -114,8 +117,8 @@
> #
> # Increase the sleep time if you have a slow device
> # or remove the sleep and add the following:
> -# wait_for_drive $device
> - sleep 15
> + wait_for_drive $device
> +# sleep 30
> exit $rtn
> ;;
--
Best regards,
Kern
(">
/\
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