Will data remain intact for a member of a RAID 5 array? People are obviously recovering their data successfully, but I'm wondering if anyone has had success with a drive that was in a RAID 5 configuration, without having to rebuild the array. One of the four identical drives in my RAID 5 array died on me last month (BSY issue, but I didn't know it at the time). I continued to use the PC with the array in degraded mode, expecting to rebuild the array once my replacement drive arrived from Seagate. Unfortunately, another drive bricked itself (BSY) before I got the replacement drive. I breathed a sigh of relief when I came across this thread and Gradius' solution. But when I saw the commands regarding partition formatting (see below), I was a little less confident that I would get my data back. I understand file systems at a fairly low level, but I have no low-level knowledge of partitions or block-level striped data (as in RAID 5). I can imagine the possibility of a fundamental difference between a partition on a single drive, and the arrangement of striped data on a drive. Can anyone explain what a User Partition Format actually does? Will it will break my RAID array? Thank you much. You should get something like (in around 15~30 seconds): Max Wr Retries = 00, Max Rd Retries = 00, Max ECC T-Level = 14, Max Certify Rewrite Retries = 00C8 User Partition Format 10% complete, Zone 00, Pass 00, LBA 00004339, ErrCode 00000080, Elapsed Time 0 mins 05 secs User Partition Format Successful - Elapsed Time 0 mins 05 secs