Old MyBook 4TB USB drive (6% health); Created 3 partitions in order to isolate an area with errors (see my earlier post) and full formatting partitions 1 & 3:
Partition 1. Good 0-7170 = 2,736,021 MB (now tests 100% good)
Partition 2. Error 7171-7229 = 22,129 MB (not tested, will not use)
Partition 3. Good 7230 to 9999 = 1,057,247 MB (now tests 100% good)
During HD Sentinel reinitialization testing on partition 3, I stopped the test and shut down the computer because there was lightning overhead.
Later, when I went to retest the drive, it showed as unformatted. I thought that was strange but thought that perhaps I inadvertently unplugged the drive too early or something. Since no data on the drive, I repeated the partitioning, full formatting and then performed the reinitialization test on partition 3. The test results were 100% good, but when I looked at the file information to confirm at which block the partition started at (I configured the test to start a few blocks before the start of the partition), the file info said "unable to detect partion/logical drive information." In Windows 10 Explorer, the partition 3 drive appears but no size information and opening says that it is unformatted. Computer Management shows it as a RAW partition with a drive letter (so, unformatted).
Disk contents inspector - Detect file information for sector:
Partition 1 (good): "Unused sector on logical drive M:\"
Partition 2 (unused): "No partition defined on this sector (unused sector)."
Partition 3 (good): Error: "Unable to detect partition / logical drive information. E: -2"
What's going on? does this mean that the drive has an error in the MBR/GPT partition definition section?
Should I (1) try again? (2) Try a different repair method? (3) Try using only partition 1 or (4) abandon this drive as unusable?
- Partition 3 lost formatting
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