[DRBD-user] rdma: setting resource 'down' fails

[Thomas Roth]

Hi all,

we have a 3-node setup with drbd 9.2.5 on Infiniband-connected servers, so I tried 'drbd_transport_rdma'.

Seemed to work, but when I want to take down the resource on one of the servers, 'drbdadm down res' does not return for 10 minutes, when it runs into 
a timeout with
 > Command 'drbdsetup down zvol0' did not terminate within 600 seconds.

There are still two 'D' processes 'drbdsetup status res' and 'drbdsetup down res'.


As an additional goodie, the three resources are zvols - ZFS block devices. Of course I have no idea how that might interfere with the transport mode.

And of course, the same setup / command works when using the tcp module instead.

Anything obvious to look for?


Best regards
Thomas
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Thomas Roth
HPC Department

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