Thanks Roland,
I am not sure if I should start a new topic for this, but now you have
me wondering....
I use a classic 3 node setup, LVM backing devices, and a stacked third
node for DR using Protocol A. I have a VPN between the main site and
off-site and the latency hovers around 10ms.
Are there compelling reasons for me to look into DRBD 9? My current
setup is pretty solid, so far I have never needed to use the off site
copies (touch wood). I have 12 resources (all KVM HA servers) piped
through the VPN.
regards
*Paul O'Rorke*
*Tracker Software Products (Canada) Limited *
www.tracker-software.com <http://www.tracker-software.com/>
Tel: +1 (250) 324 1621
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On 2019-01-30 12:55 a.m., Roland Kammerer wrote:
On Tue, Jan 29, 2019 at 01:38:14PM -0800, Paul O'Rorke wrote:
What does node-id do?
With more than two nodes DRBD needs some information against which other
peer(s) it tracks changes. In DRBD8 you only have one peer, "easy", in
DRBD9 you have to know this is "Node A", this is "Node B",... Using
information that changes (e.g., hostnames) is too volatile. So one has
to give nodes an ID, a unique identifier that never changes. (There are
scenarios where you don't need them even in DRBD9 setups, but let's not
go down that rabbit hole).
Is it a drbd 9.0.x / Linstore thing? I'm using 8.9.6
yes, a DRBD9 thing.
Regards, rck
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