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Yet another SMART question
Hello folks,
I have two WD 500GB Caviar Black drives (WD5002AALX, both over 5 years old) and the one with the OS (muti-booted, various flavors of Windows) is - maybe - displaying some curious SMART numbers in that the "Seek Error Rate" switches infrequently between 0/200/200 (threshhold/value/worse) and 0/100/253, seemingly at random times (ie, not just when the system is rebooted). The second drive's Seek Error Rate always shows 0/200/200. The other SMART numbers seem to be OK (I've attached the OS drive's SMART data taken from HD Sentinel below, just for completeness sake). Is this normal behavior? Even though they seem to be working just fine, given that the disks are 5+ years old maybe I should be pro-active and replace them now. Yes, I do frequent backups but rebuilding the system drive is still a PITA. Any insights would be appreciated. Thanks, Zag ID Attribute Thresh Value Worse Status Data 1 Raw Read Error Rate 51 200 200 OK 000000000000 3 Spin Up Time 21 139 138 OK 000000000FB0 4 Start/Stop Count 0 98 98 OK (Always passing) 000000000993 5 Reallocated Sectors Count 140 200 200 OK 000000000000 7 Seek Error Rate 0 100 253 OK (Always passing) 000000000000 9 Power On Time Count 0 62 62 OK (Always passing) 000000006E1A 10 Spin Retry Count 0 100 100 OK (Always passing) 000000000000 11 Drive Calib Retry Count 0 100 100 OK (Always passing) 000000000000 12 Drive Power Cycle Count 0 98 98 OK (Always passing) 00000000097D 192 Power off Retract Cycle Count 0 200 200 OK (Always passing) 000000000068 193 Load/Unload Cycle Count 0 200 200 OK (Always passing) 00000000092A 194 Disk Temperature 0 113 99 OK (Always passing) 00000000001E 196 Reallocation Event Count 0 200 200 OK (Always passing) 000000000000 197 Current Pending Sector Count 0 200 200 OK (Always passing) 000000000000 198 Off-Line Uncorrectable Sector Count 0 200 200 OK (Always passing) 000000000000 199 Ultra ATA CRC Error Count 0 200 200 OK (Always passing) 000000000000 200 Write Error Rate 0 200 200 OK (Always passing) 000000000000 |
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