Strange "gmirror status"

[Paolo Tealdi]

Dear all,

I have a FreeBSD server 6.4 with a mirror (geom mirror) on two disk 
ATA disk (ad2 and ad3) that had some problems : ad2 apparently for a 
bus problem, detached himself breaking the mirror.
The system continued to work only on ad3.
After some days i moved all the disks (also system disk) to another 
computer. After booting, the server automatically recognized the 
mirror recreating it from ad2 disk ( that with old data :-( ).
While recreating the mirror i successfully managed to restore all the 
data (it's only a slave mirror).
This is the output of the command "gmirror status" during the mirror 
rebuilding

# gmirror status
        Name    Status  Components
mirror/dati  FUNCTIONAL ad2
                         ad3 xx%

(I don't really remember the exact status definition but i'm sure it 
wasn't "DEGRADED")

when finished the rebuilding (6-7 hours after) the gmirror output 
immediately changed in

# gmirror status
        Name    Status  Components
mirror/dati  DEGRADED  ad2
                        ad3

Now, after a reboot, in the system log i see

Mar 17 13:44:44 aristarco kernel: GEOM_MIRROR: Device dati created 
(id=1310146198).
Mar 17 13:44:44 aristarco kernel: GEOM_MIRROR: Device dati: provider 
ad2 detected.
Mar 17 13:44:44 aristarco kernel: GEOM_MIRROR: Device dati: provider 
ad2 activated.
Mar 17 13:44:44 aristarco kernel: GEOM_MIRROR: Device dati: provider 
mirror/dati launched.
Mar 17 13:44:44 aristarco kernel: GEOM_MIRROR: Device dati: provider 
ad3 detected.
Mar 17 13:44:44 aristarco kernel: GEOM_MIRROR: Device dati: provider 
ad3 activated.
Mar 17 13:44:44 aristarco kernel: Trying to mount root from ufs:/dev/ad0s1a

but the gmirror status (DEGRADED) is not changed.

When i write something to the disk, the iostat program is displaying 
that all the two disk are working and the mirror seems to work.

Why the status is not become "COMPLETE" ?

Best regards,
Paolo Tealdi




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