[DRBD-user] Syncer question

Lars Ellenberg lars.ellenberg at linbit.com
Thu Feb 14 14:34:13 CET 2008

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


On Wed, Feb 13, 2008 at 11:36:12AM -0500, Doug Lochart wrote:
> I am using DRBD to mirror a 1 terrabyte device.  I will be syncing
> over a gigabit switch so I assume I can use 100M to 150M as a rate
> safely.  There will be other traffic on the switch.  However I do not
> seem to understand how the al-extents parameter is used.  Most
> examples leave it set to 257 and that is good for an active set of 1
> Gig.  Could someone explain what the active set implies AND what are
> the pros/cons of increasing the active set size or do I need to woory
> about.

please read
http://www.drbd.org/fileadmin/drbd/publications/drbd8.linux-conf.eu.2007.pdf

-- 
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: DRBD/HA support and consulting             sales at linbit.com :
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