[DRBD-user] Slow sync speeds

Lars Ellenberg Lars.Ellenberg at linbit.com
Thu Mar 4 19:40:10 CET 2004

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

/ 2004-03-04 11:51:02 -0600
\ Brandon Laing:
> Modified the sync-min and sync-max files in the drbd.conf file,
> as well as changed them through the drbdsetup command. Currently
> set as sync-min = 20M and sync-max = 100M. Current speeds shown
> by cat /proc/drbd: 11,252 K/sec. Changing these values did not
> impact the speed at all.

> P4 2 GHz
> 512 MB DDR RAM
> Hardware RAID-5 array on 3ware 7506 controllers
> (3 80GB Maxtor disks with 8MB buffers)
> Intel Pro 100/1000 MT server adapters with the latest drivers
> (both with a full duplex connection)

Well, 11,252 K/sec looks too close to the theoretical limit of 100MBit.
You better make sure that your connection actually *is* in "GigaBit-mode"

What about scp, ping, bing, netcat, mii-tool, ... ?

	Lars Ellenberg

More information about the drbd-user mailing list