> In the case of single level arrays, just marking the partitions
> type auto-start (fd) should be sufficient I think?

They already are.

> It seems that the assemble option of mdadm should be able to
> replace raidstart in the rest of the cases?

Yes, but mdadm --assemble doesn't appear anywhere in the RHEL init scripts,
only raidtools specific stuff like checking for /etc/raidtab and running
raidstart.

> I've been using mdadm for all normal array management and recovery
> functions. It does its job very well.

At boot time also?  What init script starts up RAID for you?

Thanks,
Dan W.