Software RAID problem

[redhat at buglecreek.com]

We have a critical system that has Redhat 8.0 installed.  The system
uses the older raidtools not mdadm. We are in the process of rebuilding
a new box, but in the meantime we have a software raid issue.  The
system had to be rebooted and we ended up with the following raid
problem: 
cat /proc/mdstat shows: 

Personalities : [raid0] [raid1]
read_ahead 1024 sectors
md1 : active raid1 hda2[0]
      119684160 blocks [2/1] [U_]

md2 : active raid0 hda3[0] hdb2[1]
      208640 blocks 64k chunks

md0 : active raid1 hda1[0] hdb1[1]
      264960 blocks [2/2] [UU]

Looks like we have a problem with md1 device which is the / partition.
lsraid -A -a /dev/md1 shows:

[dev   9,   1] /dev/md1         C27DAE7E.7C02AF01.5143DCC8.62FD07C3
online
[dev   3,   2] /dev/hda2        C27DAE7E.7C02AF01.5143DCC8.62FD07C3 good
[dev   ?,   ?] (unknown)        00000000.00000000.00000000.00000000
missing

The applicable section of /etc/raidtab is:

raiddev             /dev/md1
raid-level                  1
nr-raid-disks               2
chunk-size                  64k
persistent-superblock       1
nr-spare-disks              0
    device          /dev/hda2
    raid-disk     0
    device          /dev/hdb3
    raid-disk     

It seems that /dev/hdb3 has issues.  Is there a way to get /dev/hdb3
back online.  Can you do something with raidhotadd:
raidhotadd /dev/md1 /dev/hdb3

This is a very critical system and I want to make sure we don't do
anything that would totally bring the system down, at least until we can
build a new system.  Any help would be appreciated.

Thanks