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raw read error rate

post #1 of 14
Thread Starter 
one of my hdd's is brand new got it yesterday, but it appears to already have 65 raw read errors? if i check back every so often its increased by 1 or so, is this an issue?
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post #2 of 14
Thread Starter 
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post #3 of 14
What HDD is it? For seagate drives it is normal that the raw read error rate "raw data" is more than 0. What does it show in the "value" and "worst" fields?
Edited by drevin - 1/1/11 at 4:00pm
post #4 of 14
Thread Starter 
its a samsung f3 1tb, i have 2 in a raid 0, one is about 3 weeks old shows 0 errors. this one is 1 day old and shows 65 for raw, im not at home but off the top of my head its 100 worst, 100 threshold and 51 standardised i think. just concerned its getting bigger, but it says ready to use in the smart description
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post #5 of 14
I'm not 100% sure if its normal for a new drive to show 65 raw read errors. Maybe someone else knows better. However at this point it's still in good condition as the value hasn't dropped from 100 (the initial value).

In the case of my 2½ year old Samsung F1 750Gb, there IS some correlation between "raw read error rate" and actual errors. Each time I run the Nero Express HDD Speed Test on it, the test comes up with "error", and the SMART's Raw Read Error data increases by 1. The test also creates a "disk" type event in event viewer, stating "Bad block in \\Device\\Harddisk0\\D".

My drive currently shows 204 raw read errors (it increases/decreases every now and then) and 12 pending sectors. The "value" field is still 100 but the "worst" field is at 88.
Edited by drevin - 1/1/11 at 7:57pm
post #6 of 14
Thread Starter 
i will just use it till it dies, no point sending it for rma im sure they will say its fine and i will have to pay for carriage there and back. will get an ssd later in the year so as long as it holds out.....are there any tests i can run? will chkdsk /f repair sectors etc? i have run the error scan in hd tune pro that comes back all clear
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post #7 of 14
If HD Tune error scan didn't find anything, it should be fine for now. You can check the smart status every now and then to make sure the other critical values, such as current pending sector count, haven't increased. The raw read error rate shouldn't be a problem unless the "value" and "worst" fields start decreasing.
post #8 of 14
Thread Starter 
any other tools you can error scan with? i only have the free 14 day trial or whatever it is with hd tune.
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post #9 of 14
Thread Starter 
its very odd....smart seems to think its fine both normalized and worst are still at 100, threshhold is at 47. but the raw number is now at 121, nothing seems to find errors on the disk though, ran chkdsk all fine, i think certain programs increase the error rate, chkdsk being one of them
My System
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CPUMotherboardGraphicsRAM
q6600 B3 @ 3.2ghz asus pq5 deluxe msi gtx 460 cyclone 850/1700/4000 4 x 1gb 667 mhz ddr2 
Hard DriveOSMonitorPower
2 x samsung hd103sj 1tb RAID 0 7 home premium 64 bit dell E197FP OCZ stealthxstream 2 700W 
Case
antec 300 
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My System
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CPUMotherboardGraphicsRAM
q6600 B3 @ 3.2ghz asus pq5 deluxe msi gtx 460 cyclone 850/1700/4000 4 x 1gb 667 mhz ddr2 
Hard DriveOSMonitorPower
2 x samsung hd103sj 1tb RAID 0 7 home premium 64 bit dell E197FP OCZ stealthxstream 2 700W 
Case
antec 300 
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post #10 of 14
You could test it with Samsung's own ES-Tool (if you haven't already) to see if that one finds any errors. But I'm guessing it won't since checkdisk and HD Tune don't.

Regarding the normalized value, it probably decreases after the raw number has reached a certain point. For example, my drive shows 100 until the raw data reaches about 250. After that the value drops from 100 to 99.
Edited by drevin - 1/2/11 at 8:44am
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