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ebay hard drive seems fine-- interpreting disk check?

Last response: in Storage
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September 23, 2013 1:00:56 PM

Purchased an st33000651as 3tb drive off ebay.
obviously, a risk :)  hopefully it's a reliable drive-- they ALL have their share of 1 egg on newegg for DOAs, or dead in months.

After a bit of finagling to get it to see 2.7tb and not .7tb,
I did a full format (took 6 hours!) on thursday,
moved everything onto it (1.2tb of data),
was away for the weekend
so I then did a disk check last night (took 8+ hours!)

From the below, just to be SURE, all's well? No noises are coming from it either btw.
I don't know how bad sectors work.
Is it possible the drive had 20,000 bad sectors and was in a bad way,
but the full format sequestered those bad sectors, and that's why it reads 0?
Or is it definitely quite healthy. Just being safe-- while there's still an option to return it to the ebay seller if there's any reason.


Here's the readout:

Checking file system on E:
The type of the file system is NTFS.
Volume label is New Volume.

A disk check has been scheduled.
Windows will now check the disk.

CHKDSK is verifying files (stage 1 of 5)...
227072 file records processed. File verification completed.
9731 large file records processed. 0 bad file records processed. 0 EA records processed. 0 reparse records processed. CHKDSK is verifying indexes (stage 2 of 5)...
261312 index entries processed. Index verification completed.
0 unindexed files scanned. 0 unindexed files recovered. CHKDSK is verifying security descriptors (stage 3 of 5)...
227072 file SDs/SIDs processed. Cleaning up 15 unused index entries from index $SII of file 0x9.
Cleaning up 15 unused index entries from index $SDH of file 0x9.
Cleaning up 15 unused security descriptors.
Security descriptor verification completed.
17121 data files processed. CHKDSK is verifying Usn Journal...
33756368 USN bytes processed. Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
227056 files processed. File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
429664218 free clusters processed. Free space verification is complete.
Windows has checked the file system and found no problems.

2861458 MB total disk space.
1210974436 KB in 200064 files.
86556 KB in 17122 indexes.
0 KB in bad sectors.
416147 KB in use by the system.
65536 KB occupied by the log file.
1718656876 KB available on disk.

4096 bytes in each allocation unit.
732533503 total allocation units on disk.
429664219 allocation units available on disk.

Internal Info:
00 77 03 00 6e 50 03 00 a7 be 05 00 00 00 00 00 .w..nP..........
05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a c 348 G Storage
September 23, 2013 1:26:16 PM

The error checker built in to Windows is not the correct method to test the health of the drive as it only tests the data on the drive, not the drive itself. You need to test it with the manufacturer's diagnostic software, which for Seagate drives is called SeaTools:
http://www.seagate.com/gb/en/support/downloads/seatools...

If the drive contains the operating system, you'll need to use SeaTools for DOS since it can't be tested properly while Windows is running.
September 23, 2013 2:26:21 PM

oh! wow-- that was a waste of 8 hours :) 

it does not have the OS on it, but that doesn't change a lot.

Will try the seagate tools tonight then, haha.

btw, is the non-quick formatting through windows7 disk management, the same as seagate's advertised 'low level' format?
a c 348 G Storage
September 30, 2013 6:32:38 AM

"is the non-quick formatting through windows7 disk management, the same as seagate's advertised 'low level' format? "

No. Formatting in DOS & Windows is high level formatting, whether it be "quick format" or not.

Some techie reading here, more in depth explanation of the difference between low and high level formatting: http://www.dedoimedo.com/computers/low-level-formatting...


!