You can acknowledge that number of reallocated sectors via a button at the bottom of the disk disagnostics page. It will then not warn you again unless the number of reallocated sectors increases.
It isn't unusual for a disk to get some reallocated sectors over time. The key is to watch whether they occur frequently or start to increase rapidly which this new warning system will do.
As previously posted, I 'acknowledged' the report of 182 reallocated disk sectors, and hoped not to see another warning for a long while ... but
24 hours later the alert popped up again with a count of 185.
Today the alert is back, saying "Disk realloc sector count is: 195 (was 191)"
So reallocations are occurring daily, which I would rate as 'frequently' - but is this rapidly?
Clearly its not good news, but as it's a long way off from 1,000 - how worried should I be? ... Is it
or
IDNameFlagsRaw ValueValueWorstThreshTypeUpdatedWhen Failed
1 Raw_Read_Error_Rate POSR-- 164897011 117 095 006 Pre-fail Always -
3 Spin_Up_Time PO---- 0 095 093 000 Pre-fail Always -
4 Start_Stop_Count -O--CK 5350 095 095 020 Old_age Always -
5 Reallocated_Sector_Ct PO--CK 196 096 096 036 Pre-fail Always -
7 Seek_Error_Rate POSR-- 332052733 084 060 030 Pre-fail Always -
9 Power_On_Hours -O--CK 7115 092 092 000 Old_age Always -
10 Spin_Retry_Count PO--C- 0 100 100 097 Pre-fail Always -
12 Power_Cycle_Count -O--CK 2677 098 098 020 Old_age Always -
184 End-to-End_Error -O--CK 0 100 100 099 Old_age Always -
187 Reported_Uncorrect -O--CK 30 070 070 000 Old_age Always -
188 Command_Timeout -O--CK 0 100 100 000 Old_age Always -
189 High_Fly_Writes -O-RCK 13 087 087 000 Old_age Always -
190 Airflow_Temperature_Cel -O---K 55 045 044 045 Old_age Always FAILING_NOW
194 Temperature_Celsius -O---K 55 055 056 000 Old_age Always -
195 Hardware_ECC_Recovered -O-RC- 164897011 042 034 000 Old_age Always -
197 Current_Pending_Sector -O--C- 0 100 100 000 Old_age Always -
198 Offline_Uncorrectable ----C- 0 100 100 000 Old_age Offline -
199 UDMA_CRC_Error_Count -OSRCK 0 200 200 000 Old_age Always -