February 17, 201115 yr I'm running v4.7 and have several drives that show HPA. I thought I read that if it's not on the parity drive, just leave 'em alone. Is this still the case? Thanks syslog-2011-02-17-5.txt
February 17, 201115 yr If your setup works don't mess with it. HPA take a tiny amount of space but otherwise does not effect performance. Many people with HPA cannot start their array and thus must remove the HPA.
February 17, 201115 yr If your setup works don't mess with it. HPA take a tiny amount of space but otherwise does not effect performance. Many people with HPA cannot start their array and thus must remove the HPA. You'll not be able to use the current 5.0beta4 with the HPA. Do not even try to use it as you'll not be able to start the array. Wait for at least 5.0beta5 to see if it handles HPA better. (The issue is the HPA occupies an odd number of sectors, and unRAID in 5.0b4 expected all its math for partition size to find an even number of sectors on a disk.)
February 17, 201115 yr Author Is there an easy way to "zap" a disk and get rid of hpa and then copy data to it form another drive? One of my drives is empty and I would like to just migrate data a disc at a time.
February 17, 201115 yr See this post: http://lime-technology.com/forum/index.php?topic=10866.0 Copy the data from the HPA drive to your new drive and then remove the HPA.
February 18, 201115 yr Author Well, it seems the reason I have a blank disc is I ran the hdparm -N method and it changed the drive size from 488,385,492 to 396,111,864 with 396,066,928 free.
February 18, 201115 yr Well, it seems the reason I have a blank disc is I ran the hdparm -N method and it changed the drive size from 488,385,492 to 396,111,864 with 396,066,928 free. It sounds as if you gave it the wrong size. I suggest you use an alternate tool. Joe L.
February 18, 201115 yr Author I tried the HDAT2 Method and all I got were errors. I guess since the data is trashed, I'll just trash the drive!
February 18, 201115 yr I tried the HDAT2 Method and all I got were errors. I guess since the data is trashed, I'll just trash the drive! There's also SeaTools.
February 18, 201115 yr Seatools for dos worked really well for me. couldn't find the command on the windows version.
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