Re: [DRBD-user] Cannot synchronize stacked device to backup server with DRBD9

2018-06-18 Thread Lars Ellenberg
On Wed, Jun 13, 2018 at 01:03:53PM +0200, Artur Kaszuba wrote: > I know about 3 node solution and i have used it for some time (from ~9.0.8), > but i had problems with stability and decided to change configuration to > stacked configuration, with hope it will work more stable. As a last > solution

Re: [DRBD-user] How long will the primary DRBD continue to run without a secondary?

2018-06-18 Thread Robert Altnoeder
On 06/15/2018 02:07 AM, G C wrote: > I know the secondary is the DR and the primary keeps track of what is > changing but how long can it continue to run in this state before it > will cause it to crash or not be writable any longer?  I would gather > that at some point it would cause a lack of

Re: [DRBD-user] How long will the primary DRBD continue to run without a secondary?

2018-06-18 Thread Veit Wahlich
Hi GC, keeping track of changed blocks is implemented using bitmaps, which are part of the meta data on both sides. These bitmaps are always of full size, so they will not grow by just changing blocks. So unless you added something consuming ressources, e.g. event handlers performing LVM

Re: [DRBD-user] How long will the primary DRBD continue to run without a secondary?

2018-06-18 Thread Roland Kammerer
On Thu, Jun 14, 2018 at 07:07:35PM -0500, G C wrote: > I know the secondary is the DR and the primary keeps track of what is > changing but how long can it continue to run in this state before it will > cause it to crash or not be writable any longer? I would gather that at > some point it would

[DRBD-user] How long will the primary DRBD continue to run without a secondary?

2018-06-18 Thread G C
I know the secondary is the DR and the primary keeps track of what is changing but how long can it continue to run in this state before it will cause it to crash or not be writable any longer? I would gather that at some point it would cause a lack of resources to write the changes to but I'm not