[DRBD-user] strange disk state after resolving a split brain

Raoul Bhatia [IPAX] r.bhatia at ipax.at
Wed Jan 12 19:23:23 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


hi,

after resolving my split brain, i encounter the following
disk state:

drbd0/drbd1:
c02n01: ds:UpToDate/UpToDate
c02n02: UpToDate/DUnknown

drbd2:
c02n01: ds:UpToDate/UpToDate
c02n02: ds:UpToDate/UpToDate

why is drbd0/drbd1 inconsistent?

i resolved this by doing "drbdadm down all; drbdadm up all"
on c02n01.

output:

> root at c02n01 ~ # cat /proc/drbd
> version: 8.3.9 (api:88/proto:86-95)
> GIT-hash: 1c3b2f71137171c1236b497969734da43b5bec90 build by root at k000866c.ipax.at, 2011-01-04 13:50:32
>  0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
>     ns:0 nr:822660 dw:822660 dr:0 al:0 bm:552 lo:0 pe:0 ua:0 ap:0 ep:1 wo:d oos:0
>  1: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
>     ns:0 nr:408100 dw:408100 dr:0 al:0 bm:108 lo:0 pe:0 ua:0 ap:0 ep:1 wo:d oos:0
>  2: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
>     ns:0 nr:801648 dw:801648 dr:0 al:0 bm:547 lo:0 pe:0 ua:0 ap:0 ep:1 wo:d oos:0
> 
> 
> root at c02n02 ~ # cat /proc/drbd 
> version: 8.3.9 (api:88/proto:86-95)
> GIT-hash: 1c3b2f71137171c1236b497969734da43b5bec90 build by root at k000866c.ipax.at, 2011-01-04 13:50:32
>  0: cs:Connected ro:Primary/Secondary ds:UpToDate/DUnknown C r-----
>     ns:830684 nr:0 dw:13090616 dr:8926705 al:3235 bm:3785 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:10144
>  1: cs:Connected ro:Primary/Secondary ds:UpToDate/DUnknown C r-----
>     ns:408104 nr:0 dw:7726064 dr:31265577 al:113 bm:220 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:5612
>  2: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
>     ns:806972 nr:0 dw:38745024 dr:46369957 al:2064 bm:2568 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:0

i thought i report that. please tell me if i can be of any help.

cheers,
raoul



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