Multipath Degraded Disks

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Jason Hamilton

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Jul 4, 2013
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So I have only been using FreeNas for the last 2 weeks here at home. I have 4 WD Black Caviar 2TB drives setup in in a RaidZ configuration. I originally had these drives in an enclosure and had the jumpers in place to limit them to 1.5Gb but last night I rebuilt the array and removed the jumpers from the drives to take them up to 2Gb speed. After doing that, the drives now show up as multipath (well 3 of the 4 do I'm not sure whats going on with the first one. Here is the output that I'm getting right now from the console

Code:
freenas# camcontrol devlist
<WDC WD2002FAEX-007BA0 05.01D05>   at scbus0 target 0 lun 0 (ada0,pass0)
<WDC WD20EARS-00MVWB0 51.0AB51>    at scbus0 target 1 lun 0 (pass1,ada1)
<WDC WD20EARS-22MVWB0 51.0AB51>    at scbus1 target 0 lun 0 (pass2,ada2)
<WDC WD20EARS-22MVWB0 51.0AB51>    at scbus2 target 0 lun 0 (pass3,ada3)
<WDC WD20EZRX-00DC0B0 80.00A80>    at scbus3 target 0 lun 0 (pass4,ada4)
< USB Flash Memory PMAP>           at scbus4 target 0 lun 0 (pass5,da0)
freenas# gmultipath status
           Name    Status  Components
multipath/disk2  DEGRADED  ada1 (ACTIVE)
multipath/disk3  DEGRADED  ada2 (ACTIVE)
multipath/disk1  DEGRADED  ada4 (ACTIVE)


I can't see the drives in the gui but I think that is related to another bug that is fixed in p3.

So with the drives showing degraded, how does one make them optimal? Thank you all in advance for your help with this and a happy 4th of July to everyone in the US :)
 
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