[OpenIndiana-discuss] General ZFS questions

[William David OpenIndiana]

Try replace  sata cables from all devices using a sata 2  cables.  

A motherboard controller is a sata 1 ( 150 ) or sata 2 ( 300 ).? 
 A power supply. Is the good quality (  TT, CORSAIR , etc ) try replace this in the first time if is not good quality for best configuration use only true sata power connector not a molex adapters to sata.


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Em 13/01/2011, às 00:07, Edward Ned Harvey <openindiana at nedharvey.com> escreveu:

>> From: Michelle Knight [mailto:michelle at msknight.com]
>> 
>> It seems that whenever I do a general scrub on a monthly basis on the
>> internal
>> set, there is always the odd two or three cksum errors floating around. Of
>> course, ZFS corrects them. But is this usual? To get a few errors on hard
>> drives? Should I expect it to be 0 all the time?
> 
> cksum errors always mean hardware (or driver) failure.
> If you see cksum errors, then do a zpool clear to make them go away, and
> scrub again.  Pay attention if the errors are always on the same device or
> not.  If it's always on the same device, replace the device.  If it's not
> always on the same device ... Make sure you're backed up, and start
> replacing things like sata controllers, performing memory tests, etc.
> 
> Ensure you have ECC memory and supported hardware.
> 
> 
>> On the external drives, I've just copied a little over 1tb of data and I
> think
>> I've had about 10 cksum errors after the copy.
> 
> Should be zero.  Same as above.
> 
> 
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