[DRBD-user] peer-max-bio-size 1M

Ben RUBSON ben.rubson at gmail.com
Thu Apr 10 15:59:36 CEST 2014

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


According to drbdmeta manpage :
If you will use the resource before it is connected to its peer for the
first time DRBD may perform better if you use the --peer-max-bio-size
option. For DRBD versions of the peer use up to these values: <8.3.7 -> 4k,
8.3.8 -> 32k, 8.3.9 -> 128k, 8.4.0 -> 1M.

So as I use 8.4.4 on both nodes, here is my drbdmeta command :
drbdmeta 0 v08 /dev/c0v0 internal create-md --peer-max-bio-size 1M
--al-stripes 4 --al-stripe-size-kB 32

Result :
peer-max-bio-size out of range (0...128k)

Did I miss something ?

Will both nodes discuss about the value to use up to 1M, even if I don't
use "--peer-max-bio-size 1M" in drbdmeta ?

I wait for your answer to create my resources :-)

Thank you very much,

Best regards,

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