Mailing List Archive

DRBD Mode B with Linstor
Dear DRBD-Users!

Is it possible to run Linstor with DRBD Mode B?

Linstore states it will accept "ONLY MODE C"

We have used mode B for ages without any problems. Mode C doubles the
DRBD latency because of the second disk access.

[.In our case the network TTL can be neglected since we are using an
Infiniband Network with TTLs wide below the rotational latency of our
spinning disks.]

Cheers,

Volker

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inqbus Scientific Computing Dr. Volker Jaenisch
Hungerbichlweg 3 +49 (8860) 9222 7 92
86977 Burggen https://inqbus.de
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Re: DRBD Mode B with Linstor [ In reply to ]
Hi,

Sure, you might want to take a look at

linstor controller drbd-options -h

especially the "--protocol B" option :)
This option can also be run on resource-group / -definition level if you
want to override the used protocol for some resources.

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Best regards,
Gabor Hernadi