[DRBD-user] Clarification on How-To

Nuno Tavares nunotavares at hotmail.com
Thu Sep 16 21:04:18 CEST 2004

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

>From: Alan Robertson <alanr at unix.sh>
>To: John Lange <john.lange at bighostbox.com>
>CC: drbd <drbd-user at linbit.com>
>Subject: Re: [DRBD-user] Clarification on How-To

>>Since the config files is not designed to indicate a primary node, how
>>does drbd know which node shoul

Each DRBD device keeps an internal state which will allow to determine which 
one is the most up-to-date (should read last-changed) node, between the two 
hosts connecting. This way the DRBD will always know which is the *best* 
DRBD to mirror from.

You can surpass this behaviour by using a cluster manager (like Heartbeat), 
or doing it manually using drbdadm/drbdsetup.

Nuno Tavares

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