[DRBD-user] Please help with slow Replication / Syncing on debian squeeze 6.0, 8-disk RAID6

Uwe Schuerkamp uwe.schuerkamp at nionex.net
Mon Mar 12 14:17:07 CET 2012

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

On Mon, Mar 12, 2012 at 01:25:12PM +0100, Michael Schwartzkopff wrote:

> Hm,
> somethings do not fit together. You configured a rate of 102M (Byte/s) and 
> when you ask the DRBD it tells you that your configured a rate of 11M (Byte/s)
> Did your show us the /proc/drbd output of the above given config?
Hello Michael, 

here's the /proc/drbd output: 

# cat /proc/drbd 
version: 8.3.7 (api:88/proto:86-91)
srcversion: EE47D8BF18AC166BE219757 
 0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C
    ns:2371132 nr:0 dw:0 dr:2378656 al:0 bm:144 lo:1 pe:2556 ua:1806
    ap:0 ep:1 wo:d oos:3152530292
        [>....................] sync'ed:  0.1% (3078640/3080948)M
        finish: 59:10:08 speed: 14,628 (12,296) K/sec

I've been changing some disk params as recommended in the IRC (see
wo: entry), but sadly this has had no effect. 

I've also tried using a different interface (one connected to a
gigabit switch), but sync speed was as low as before. 

All the best & thanks for your comments, 


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