SUMMARY: Mirror/removal question

From: Brian Lucas <>
Date: Tue Jun 29 2004 - 12:39:35 EDT
Many thanks to John Malick for his quick reply that worked.
-----Original Message-----
From: John Malick [] 
Sent: Tuesday, June 29, 2004 10:37 AM
To: Brian Lucas
Subject: Re: Mirror/removal question

I had the same issue once and a "metaclear -r -f 'device'" worked 
perfectly. You mentioned using the -f but not the -r. Give that a shot

Good luck

-----Original Message-----
[] On Behalf Of Brian Lucas
Sent: Tuesday, June 29, 2004 10:33 AM
Subject: Mirror/removal question

Mighty gurus!  I have a mirror that I want to rebuild.  Though there is
no data on the volume, and the volume is not mounted, I cannot blast
away the mirror because of one submirror that clings to life.  It has a
disk in a Last Erred state and no amount of "metaoffline -f" "metadetach
-f" "metaclear" or anything else will let me destroy this mirror and
submirror.  All errors return as "operation would result in no readable
submirrors" or "attempted to clear mirror with submirror(s) in invalid
state" or something to that effect to which I respond, in this case
only, "who cares?! Do what I want!"

I have even tried to replace the "Last Erred" disk with "metareplace -e
d3 c0t24d0s2" but that also fails.  "metasync" does nothing Without
rebooting, what options are left?  The mirror had 2 submirrors, I
removed one but I was still unable to kill the whole mirror because the
"Last Erred" one was hanging me up.  I have listed the output from a
metastat command.


# metastat d3
d3: Mirror
    Submirror 0: d31
      State: Needs maintenance
    Submirror 1: d32
      State: Needs maintenance
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 141435392 blocks

d31: Submirror of d3
    State: Needs maintenance
    Invoke: metasync d3
    Size: 141435392 blocks
    Stripe 0: (interlace: 32 blocks)
        Device      Start Block  Dbase        State Reloc Hot Spare
        c3t10d0s2       9424     No            Okay   Yes
        c3t7d0s2        9424     No            Okay   Yes
        c3t8d0s2        9424     No            Okay   Yes
        c3t9d0s2        4712     No            Okay   Yes

d32: Submirror of d3
    State: Needs maintenance
    Invoke: after replacing "Maintenance" components:
                metareplace d3 c0t24d0s2 <new device>
    Size: 141435392 blocks
    Stripe 0: (interlace: 32 blocks)
        Device      Start Block  Dbase        State Reloc Hot Spare
        c0t23d0s2       9424     No            Okay   Yes
        c0t24d0s2       9424     No      Last Erred   Yes
        c0t25d0s2       9424     No            Okay   Yes
        c0t26d0s2       9424     No            Okay   Yes

Device Relocation Information:
Device    Reloc Device ID
c3t10d0   Yes   id1,ssd@w2000002037397d13
c3t7d0    Yes   id1,ssd@w20000020374670af
c3t8d0    Yes   id1,ssd@w20000020375b1bbb
c3t9d0    Yes   id1,ssd@w20000020375b9aa3
c0t23d0   Yes   id1,ssd@w20000020375b997f
c0t24d0   Yes   id1,ssd@w20000020376014c3
c0t25d0   Yes   id1,ssd@w20000020376e8092
c0t26d0   Yes   id1,ssd@w20000020375b1324
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Received on Tue Jun 29 12:40:12 2004

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