Sun X4200-M2 SPLAT platform

[cciesec2006]

Anyone know the answer to this?

I have a Sun X4200-M2 running RAID-1 (2x140GB HD) running as
SPLAT NGx R65 2.6 kernel Enforcement modules. The firewall
is running fine.

As a test, I removed one of the Hard Drives from the firewall.
The firewall continues to run. That's expected.

I inserted a new hard drive into the slot where the original
hard drive was removed.

My question is that will the "new" hard drive get rebuilt
(i.e. mirror image via RAID-1) on the fly? If so, how long
will it take for the rebuild to complete?

Thanks.