Unrealistic SMART values

[idata]

Hi there,

I bought my Intel 320 SSD in January and use it as my system drive. So, not much writing, I just boot from it. My data is stored elsewhere.

Nevertheless I get these terrifying SMART values:

241 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 48989

242 Host_Reads_32MiB 0x0032 100 100 000 Old_age Always - 19852

Does this tell me that 1.53 TiB were written on this drive?! Because that's pretty much impossible. I rarely write anything on it, so the Reads value should be higher than the Writes value (they're both too high, though).

Here are the other values, some of which I'm unable to interpret:

3 Spin_Up_Time 0x0020 100 100 000 Old_age Offline - 0

4 Start_Stop_Count 0x0030 100 100 000 Old_age Offline - 0

5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 0

9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 1591

12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 305

170 Reserve_Block_Count 0x0033 100 100 010 Pre-fail Always - 0

171 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0

172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0

183 Runtime_Bad_Block 0x0030 100 100 000 Old_age Offline - 0

184 End-to-End_Error 0x0032 100 100 090 Old_age Always - 0

187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0

192 Unsafe_Shutdown_Count 0x0032 100 100 000 Old_age Always - 23

199 UDMA_CRC_Error_Count 0x0030 100 100 000 Old_age Offline - 0

225 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 48989

226 Workld_Media_Wear_Indic 0x0032 100 100 000 Old_age Always - 34264840

227 Workld_Host_Reads_Perc 0x0032 100 100 000 Old_age Always - 1

228 Workload_Minutes 0x0032 100 100 000 Old_age Always - 2366980413

232 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0

233 Media_Wearout_Indicator 0x0032 100 100 000 Old_age Always - 0

What's going on here?

[idata]

The internet browsers I've used will write to their cache all the time, you'll easily be able to see how much and how quickly using a ramdisk for the cache. It's also not unusual for a browser to have multiple files or caches they write to, in different locations. For example, I can move my Firefox cache to a different drive, and still have it write to the system drive. But all together the caches certainly do not add up to the amount of data that you are apparently seeing.

Assuming the hours on count is correct, that SSD has been on for a bit under 67 days total. At 1.5Tb written, that's almost 22.4GB a day. But don't feel to bad, given the Host Writes and Power on Hours Count of an Intel 510 SSD I have, I've written a bit over 70GB a day. I know how I've used that SSD, and I can't see how I've done that. IMO, some or all of this data must be wrong, or we don't know how it is accumulated/calculated by the SSD.

[idata]

Hey parsec,

Thanks for these calmative words, I already questioned my sanity since outsourcing the chromium cache didn't show much effect. I guess I don't have to worry until the Media Wearout Indicator rises.