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From: "Toomas Aas" <toomas.aas@raad.tartu.ee>
Organization: Tartu City Government
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Date: Mon, 1 Apr 2002 23:43:56 +0300
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Subject: *invalid* vinum drive
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Hello!

After a terrible crash (power loss) my vinum configuration is invalid. 
I have a mirrored volume of two plexes, each plex has one subdisk. 
The physical partitions involved are da0s2e and da1s1e.

At boot time, the following is logged to messages:

Apr  1 23:05:24 kuller /kernel: vinum: No space for  on drive1

This is the weird output of 'vinum list' command:
------------------------------------------------------------------------------------------
kuller# vinum list
2 drives:
D drive0                State: up       Device /dev/da0s2e      Avail: 0/7750 MB (0%)
D drive1                State: up       Device /dev/da1s1e      Avail: 15499/7750 MB (200%)
D *invalid*             State: referenced       Device  Avail: 0/0 MB

1 volumes:
V mirror01              State: up       Plexes:       2 Size:       7749 MB

2 plexes:
P mirror01.p0         C State: up       Subdisks:     1 Size:       7749 MB
P mirror01.p1         C State: faulty   Subdisks:     1 Size:       7749 MB

2 subdisks:
S mirror01.p1.s0        State: stale    PO:        0  B Size:       7749 MB
S mirror01.p0.s0        State: up       PO:        0  B Size:       7749 MB
--------------------------------------------------------------------------------------------

/var/log/vinum_history contains nothing out of the ordinary. 

But the on-disk configuration is visibly invalid:

this is for da0s2e:
IN VINOkuller.tlvsisedrive0^_;<&aWEVf{   N^Pvolume mirror01 state up
plex name mirror01.p0 state up org concat vol mirror01
plex name mirror01.p1 state up org concat vol mirror01
sd name mirror01.p0.s0 drive drive0 plex mirror01.p0 len 15871955s driveoffset 2
65s state up plexoffset 0s
sd name mirror01.p1.s0 drive drive1 plex mirror01.p1 len 15871735s driveoffset 2
65s state up plexoffset 0s

this is for da1s1e:
IN VINOkuller.tlvsisedrive1^_;[D<d`WEVf{   Nvolume mirror01 state up
plex name mirror01.p0 state up org concat vol mirror01
plex name mirror01.p1 state up org concat vol mirror01
sd name mirror01.p0.s0 drive drive1 plex mirror01.p0 len 15871955s driveoffset 2
65s state up plexoffset 0s
sd name mirror01.p1.s0 drive *invalid* plex mirror01.p1 len 15871735s driveoffse
t 265s state up plexoffset 0s

The configuration on da0s2e looks OK (to my inexperienced eye), but the 
configuration on da1s1e is really weird. Can anybody (anybody whose name 
starts with G ;-)) tell me if there is a way to gracefully recover from
this mess? If I read the page http://www.vinumvm.org/vinum/how-to-debug.html
correctly, I should be able to re-create the objects with 'vinum create'
and the original data should remain intact (if not already damaged by 
the power loss). Is this correct? Luckily I still have the configuration 
file that I used to create this configuration.

Many thanks in advance,
--
Toomas Aas | toomas.aas@raad.tartu.ee | http://www.raad.tartu.ee/~toomas/
* Life would be easier if I had the source code.


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