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On 1/11/07, Alan E. Davis <lngndvs@×××××.com> wrote: |
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> Using an AsRock 939SLI32-eSATA2 motherboard and a Western Digital sata |
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> drive, I have been having alot of trouble. I found AHCI driver to work, at |
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> least detect the drive/partitions. I have had no end of problems. |
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> |
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> I had moved this drive from another machine w/ a Tyan motherboard, where it |
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> worked flawlessly. Most recently, it is impossible to write to the drive |
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> (at least alot of times): it causes what seems like a lockup. I cannot find |
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> anything about this. I compiled AHCI support into gentoo-sources-2.6.19-r2. |
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> |
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> |
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> I want to ask if some kind soul can point me in a useful direction? |
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|
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I've suffered a lot of hell at the hands of SATA. I was experiecing |
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what you describe, drive lockups, IO write drops, and even drive |
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power-up-power-down cycling. But, i think after several months I think |
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I've found it. |
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My troubles started becoming more clear what they were when i turned |
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on full APIC support in the kernel, which I had disabled at an earlier |
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date due to weird "nvidia+xcomposite=system failure" issue, which |
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appears to have been resolved. |
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After i turned on APIC, i noticed dmesg started reporting drive |
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add/deletes vaugely reminiscient of USB key plugging. So It dawned on |
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me, that maybe, I finally had full SATA-HOTSWAP support working |
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properly. |
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So, I wondered why my drives were tripping hotswap events, and after a |
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bit of mucking around, I concluded, that it was a loose cabling issue |
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in the case somewhere. |
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|
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So I played around with touching various cables, and noticed with some |
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of them, all i needed to to was -touch- the cable for the drive to do |
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a nasty "power up/powerdown" jump, and then replaced some of my sata ( |
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i had spares made by a different manufacturer ) cables, some of my |
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sata-2-molex power adaptors, and have since found my problems have |
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subsided :) |
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|
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So my advice, is give the cables a bit of a jiggle while the computer |
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is running and see if you can cause a failure event to occur by doing |
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so. :) |
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( As a side note, I now distrust SEAGATE SATA drives, they seem to run |
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10°C hotter than all my other drives ( Hitachis ) and seem to easily |
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hit 60°C at which point they also start failing and having the |
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SMART_ERROR_RATE being so huge it keeps going into integer overflow. ) |
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Best of luck, I know how nasty it can be having drives jumping foot |
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all the time. I have 4 drives. All SATA :P. |
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- |
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Kent |
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|
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-- |
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