[Drbd-dev] Summary (3rd try)
philipp.reisner at linbit.com
Wed Aug 25 17:13:45 CEST 2004
I tried to incooperate the comments of LMB and LGE. Please review:
disconnect No automatic resynchronisation gets performed. One
node should drop its net-conf (preferable the
node that would become sync-target)
ass-older Auto sync source is the oder primary (curr.behaviour i.t.s.)
ass-younger Auto sync source is the younger primary
ass-furthest Auto sync source is the node that did more modifications
ass-NODENAME Auto sync source is the named node
disconnect (current behaviour)
ass-primary Auto sync source is the current primary
panic The current primary panics. The node with the
higher gc should take over.
1) The disconnect actions cause the sync-target or the secondary
node to go into StandAllone state.
2) If two nodes in primary state try to connect one of them goes
into StandAllone state (=curr. behaviour)
3) As soon as the decission is takes the sync-target addopts the
GC of the sync source.
[ The whole algorith would also work if both would reset their
GCs to <0,0,0...> after the decission, but since we also
use the GC to tag the bitmap it is better the current way ]
Is this better than try2 ?
Should we improve the naming ? "ass" might not be the best choice.
Do you think that the naming is constent ?
Is it still ambiguous ?
: Dipl-Ing Philipp Reisner Tel +43-1-8178292-50 :
: LINBIT Information Technologies GmbH Fax +43-1-8178292-82 :
: Schönbrunnerstr 244, 1120 Vienna, Austria http://www.linbit.com :
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