i thought it could not hurt to format (build) the drives

i had to do it 2 times before it began the stress test, which i remeber means that the build went ok

during one of the builds ig got these errors on the secound drive:

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

real 4m0.304s
user 0m2.120s
sys 0m14.420s
hdb: read_intr: status=0x59
hdb: read_intr: error=0x40
end_request: I/O error, dev 03:44 (hdb), sector 119816194
EXT2-fs error (device ide0(3,68)): read_block_bitmap: Cannot read block bitmap - block_group = 7313, block_bitmap = 59908097
EXT2-fs error (device ide0(3,68)): ext2_check_blocks_bitmap: Wrong free blocks count in super block, stored = 77942805, counted = 77934623