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| Drive performance http://forum.hddguru.com/viewtopic.php?f=7&t=23968 |
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| Author: | saggy [ September 12th, 2012, 11:13 ] |
| Post subject: | Drive performance |
Hiya there Just out of interest what software do folk here use to test a drives performance? I have a laptop for repair and I suspect the drive is at fault with very slow access times (if thats the right way to word it) and im ideally after a graph of the performance vs a new drive. Theres a little more to it than that but if anyone has any names fell free to throw them in the hat for me  Cheers |
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| Author: | loki [ September 12th, 2012, 11:36 ] |
| Post subject: | Re: Drive performance |
You could try booting to MHDD & running a scan http://hddguru.com/software/2005.10.02-MHDD/ Manual http://hddguru.com/software/2005.10.02- ... al.en.html |
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| Author: | saggy [ September 12th, 2012, 11:42 ] |
| Post subject: | Re: Drive performance |
Cheers Loki Ill pick it up later and have a nose at the offending drive |
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| Author: | saggy [ September 12th, 2012, 12:46 ] |
| Post subject: | Re: Drive performance |
Off topic - UltraDMA CRC Error Count? This relates to a bad cable (afaik) but what is it actually counting? Can it be described as how many times data has been sent to the drive but is bad? What actually happens to this data? Is it sent again untill it passes this check? |
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| Author: | Vulcan [ September 12th, 2012, 14:09 ] |
| Post subject: | Re: Drive performance |
saggy wrote: Off topic - UltraDMA CRC Error Count? This relates to a bad cable (afaik) There are multiple possible causes - cable problems are one of those possible causes. Typically that SMART counter can only increment (unless you use techniques to directly manipulate the SMART data). Therefore you need to look for new changes in that value, to see if there is an ongoing current problem, or just a historical one saggy wrote: but what is it actually counting? Can it be described as how many times data has been sent to the drive but is bad? For SATA, it typically means the CRC check on a received frame failed. saggy wrote: What actually happens to this data? Is it sent again untill it passes this check? Not necesarily "until it passes this check" (there can be other limits), but there will usually be a number of host retries. |
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