March 3, 201016 yr I have 11 Western Digital Green drives in my system. I've used the wdidle3.exe program to disable the power saving features because it drastically increasing LCC count (About 1000/day). This is a common issue, and a common solution to the problem (according to google results...) Everything was fine for a week, no more LCC increases. Then today after a parity check I find 4 drives out of the 10 have drastically skyrocketed. All these drives were <3,000 LCCs before the parity check. The other 6 drives are fine and did not increase. 193 Load_Cycle_Count 0x0032 185 185 000 Old_age Always - 46413 193 Load_Cycle_Count 0x0032 176 176 000 Old_age Always - 72607 193 Load_Cycle_Count 0x0032 177 177 000 Old_age Always - 71522 193 Load_Cycle_Count 0x0032 184 184 000 Old_age Always - 49245 What the heck could cause this? The drives are rated for 300k LCCs and i've had them for less than a month! At this rate they will be dead in less than 5 months.
March 3, 201016 yr I have 3 WD 2TB EAD Green drives and don't seem to be experiencing this issue. I'll check further into it once I'm back home.
March 3, 201016 yr I have 11 Western Digital Green drives in my system. I've used the wdidle3.exe program to disable the power saving features because it drastically increasing LCC count (About 1000/day). This is a common issue, and a common solution to the problem (according to google results...) Everything was fine for a week, no more LCC increases. Then today after a parity check I find 4 drives out of the 10 have drastically skyrocketed. All these drives were <3,000 LCCs before the parity check. The other 6 drives are fine and did not increase. 193 Load_Cycle_Count 0x0032 185 185 000 Old_age Always - 46413 193 Load_Cycle_Count 0x0032 176 176 000 Old_age Always - 72607 193 Load_Cycle_Count 0x0032 177 177 000 Old_age Always - 71522 193 Load_Cycle_Count 0x0032 184 184 000 Old_age Always - 49245 What the heck could cause this? The drives are rated for 300k LCCs and i've had them for less than a month! At this rate they will be dead in less than 5 months. What do you have the drive spin-down timer set to? This would possibly be something to look at.
March 3, 201016 yr I think LLC is the heads being parked. There's a different counter for spinning down, maybe Start_Stop_Count?
March 3, 201016 yr Author I have 11 Western Digital Green drives in my system. I've used the wdidle3.exe program to disable the power saving features because it drastically increasing LCC count (About 1000/day). This is a common issue, and a common solution to the problem (according to google results...) Everything was fine for a week, no more LCC increases. Then today after a parity check I find 4 drives out of the 10 have drastically skyrocketed. All these drives were <3,000 LCCs before the parity check. The other 6 drives are fine and did not increase. 193 Load_Cycle_Count 0x0032 185 185 000 Old_age Always - 46413 193 Load_Cycle_Count 0x0032 176 176 000 Old_age Always - 72607 193 Load_Cycle_Count 0x0032 177 177 000 Old_age Always - 71522 193 Load_Cycle_Count 0x0032 184 184 000 Old_age Always - 49245 What the heck could cause this? The drives are rated for 300k LCCs and i've had them for less than a month! At this rate they will be dead in less than 5 months. What do you have the drive spin-down timer set to? This would possibly be something to look at. 1 hour, the default. I just re-ran another parity check to see if it would happen again. They only increased in 1 LCC, which is normal. This seems like something Tom should look at. This may have lowered the life of my drives, or perhaps something bugged out SMART.
March 5, 201016 yr Just checked my WD10EACS and they all have around 30k LLC in 10000 hours :- 9 Power_On_Hours 0x0032 086 086 000 Old_age Always - 10346 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 119 193 Load_Cycle_Count 0x0032 192 192 000 Old_age Always - 26918
March 5, 201016 yr Here's what my always on server with 15 minute idle spindown time shows on it's 2TB WD EADS: 9 Power_On_Hours 0x0032 093 093 000 Old_age Always - 5417 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 43 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 466 9 Power_On_Hours 0x0032 093 093 000 Old_age Always - 5413 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 57 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 634 9 Power_On_Hours 0x0032 093 093 000 Old_age Always - 5314 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 36 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 353 For comparison purposes, here's the system/cache drive 1TB WD FALS: 9 Power_On_Hours 0x0032 094 094 000 Old_age Always - 4940 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 44 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 50
March 5, 201016 yr Hmm, the drive I posted about yesterday went up 2500 LLC's in 24 hours..... just rebooted the box so no logs unfortunatly. Have killed all of my addons for now to see if they stop it rising. (cache_dirs, unraid_notify, SABNZBD)
April 11, 201016 yr About one month later and here's my current stats, with old numbers in (). All firmware revisions are 01.00A01. 9 Power_On_Hours 0x0032 092 092 000 Old_age Always - 6306 (5417) 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 46 (43) 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 536 (466) 9 Power_On_Hours 0x0032 093 093 000 Old_age Always - 6321 (5413) 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 60 (57) 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 709 (634) 9 Power_On_Hours 0x0032 093 093 000 Old_age Always - 6222 (5314) 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 39 (36) 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 411 (353)
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