Reallocated Sector Ct

[ccruzen]

I'm in the midst of upgrading some of my data drives to 5GB drives.  I'm on my third drive that during the parity rebuild has contantly growing Reallocated Sector Ct.  I'm 1% into my parity rebuild and the count is already up to 368.  Like I said, this is the 3rd drive I'm trying, they have all done the same thing.  Could it be a really bad batch of drives?  Could it possibly be a bad backplane or connection?  I'm at a loss.  I can't believe this many drives would have the same issue.  Or is it no big deal and to be expected?  All drives have been Toshiba MD04ACA500.

 

Here's the current smart status:

# Attribute Name Flag Value Worst Threshold Type Updated Failed Raw Value

1 Raw Read Error Rate 0x000b 100 100 050 Pre-fail Always - 0

2 Throughput Performance 0x0005 100 100 050 Pre-fail Offline - 0

3 Spin Up Time 0x0027 100 100 001 Pre-fail Always - 8795

4 Start Stop Count 0x0032 100 100 000 Old age Always - 3

5 Reallocated Sector Ct 0x0033 100 100 050 Pre-fail Always - 368

7 Seek Error Rate 0x000b 100 100 050 Pre-fail Always - 0

8 Seek Time Performance 0x0005 100 100 050 Pre-fail Offline - 0

9 Power On Hours 0x0032 100 100 000 Old age Always - 36 (1d, 12h)

10 Spin Retry Count 0x0033 100 100 030 Pre-fail Always - 0

12 Power Cycle Count 0x0032 100 100 000 Old age Always - 3

191 G-Sense Error Rate 0x0032 100 100 000 Old age Always - 13

192 Power-Off Retract Count 0x0032 100 100 000 Old age Always - 0

193 Load Cycle Count 0x0032 100 100 000 Old age Always - 3

194 Temperature Celsius 0x0022 100 100 000 Old age Always - 38 (Min/Max 24/39)

196 Reallocated Event Count 0x0032 100 100 000 Old age Always - 46

197 Current Pending Sector 0x0032 100 100 000 Old age Always - 0

198 Offline Uncorrectable 0x0030 100 100 000 Old age Offline - 0

199 UDMA CRC Error Count 0x0032 200 253 000 Old age Always - 4

220 Disk Shift 0x0002 100 100 000 Old age Always - 0

222 Loaded Hours 0x0032 100 100 000 Old age Always - 36

223 Load Retry Count 0x0032 100 100 000 Old age Always - 0

224 Load Friction 0x0022 100 100 000 Old age Always - 0

226 Load-in Time 0x0026 100 100 000 Old age Always - 205

240 Head Flying Hours 0x0001 100 100 001 Pre-fail Offline - 0

 

If you have any advice/help, let me know.

Thanks,

[SSD]

Reallocated sectors are due to the drive itself. Not due to cable connections or controller issues. Tiny chance they could be induced if the power supply is weak - but I have never seen it.

 

I know a number of users, me included, have bought these Toshibas and not had reallocated sectors. I can only guess that maybe they were damaged in shipping or a bad run of drives.

 

I'd return them all as defective and get new ones. Hopefully the next batch will be fine.

[ccruzen]

Thank you for the reply, they've all been hooked up in a Norco 4224 so I'd be really surprised a power cable would be the issue since I'm not seeing it on the other drives on that backplane.

Hopefully Amazon is okay with all the returns I've been doing:)

Thanks,