|I suspect the info you're getting is not accurate. Generally, the symptoms of a damaged drive are not reduced drive space. |
Are the 9 gig and 24 gig figures the total drive space, the partitioned space, the unpartitioned space, the used space on the partition or the unused space on the partition?
You may want to run the drive manufacturer's diagnostics on the drives. If the drives were new that utility should be on the disk that came with them. If not, it should be on their web site.