What happens if you temporarily disconnect the drbd resource in Primary mode from the rest during the "move" process? Does that speed up the process ? If yes, then you will have to tune drbd sync parameters for the 10Gbit link.
G. On Mon, 6 May 2019 at 14:35, Julien Escario <[email protected]> wrote: > Hello, > Sorry if this as already been answered : I check the archives and found > similar issues with DRBD8 but none with linstor and DRBD9. > > This is not really a 'problem' but more a config/performance misconfig : > when I 'move' a ressource from another storage backend to linstor > storage on Proxmox, the sync is maxed at 3MB/s (completely flat). > > Drbdtop reports this : > Sent: total:23.8MiB Per/Sec:3.0MiB > > Let me first confirm my hardware is (hopefully) capable of doing far > more (10Gbps network and full SSD ZFS storage with nvme cache). > > So it seems I made a misconf somewhere. > > I tried to change a few values : > # linstor controller drbd-options --max-buffers=36864 > --rcvbuf-size=2097152 --sndbuf-size=1048576 > # linstor controller drbd-options --c-fill-target=10240 > --c-max-rate=737280 --c-min-rate=20480 --c-plan-ahead=10 > > That was described as optimal for 10Gbps network on some howtos I found. > > Just in case it wasn't applied on the fly, I ran drbdadm adjust on the > resource (both nodes). > > Values are stored in /var/lib/linstor.d/linstor_common.conf file. > > No speed change in this sync. > > If I run 2 similar syncs at the same time, each of them is stuck at 3MB/s. > > What did I miss ? > > Best regards, > Julien Escario > _______________________________________________ > drbd-user mailing list > [email protected] > http://lists.linbit.com/mailman/listinfo/drbd-user > -- Sent from Gmail Mobile
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