[DRBD-user] Enabling a stacked resource - HELP!
sling.temp at googlemail.com
Thu Sep 15 14:28:00 CEST 2011
For anyone using google and stuck like I was, you can use the same net card
just need diferent ports assigned to each resource.
> Thanks for your reply Matthieu, I'm now trying it as seperate DRBD's for
> each of the VMs as live migration would be nice but it's not a necessity.
> Only now I seem to be running into a problem of not being able to use the
> same network card for multiple DRBD resources. I'm hoping that I won't
> have to use a different IP's for each resource!
> Matthieu Labbé wrote:
>> 2011/9/13 SlingPirate <sling.temp at googlemail.com>:
>>> Thank you for your input Lars, and apologies for my lack of
>>> understanding. I
>>> have done some more reading and I am still somewhat unsure as how to
>>> this. I will try to re-explain what I'm after and I would be grateful
>>> any more of your time and guidance.
>>> ********* On-site ********* *** Off-site ***
>>> = NODE-1 = = NODE-2 = = NODE-DR =
>>> = VM-1 = = VM-1 = = VM-1 =
>>> = VM-2 = = VM-2 = = VM-2 =
>>> = VM-3 = = VM-3 = = VM-3 =
>>> = VM-4 = = VM-4 = = VM-4 =
>>> Under normal conditions I would like to run VM-1 & VM-2 on NODE-1 while
>>> & VM-4 run on NODE-2.
>>> If NODE-1 dies NODE-2 runs all the VMs or visa-versa. If the site that
>>> NODE-1 & NODE-2 are based at blows up, NODE-3 is ready to run all VMs.
>>> I can use either block devices or image files for the VMs.
>>> What would you suggest would be the correct way to set this up?
>> You need more than one DRBD, for example:
>> DRBD0 for VM-1 & VM-2, Primary on NODE-1, Secondary on NODE-2
>> DRBD1 for VM-3 & VM-4, Primary on NODE-2, Secondary on NODE-1
>> or use one DRBD per VM as suggested before.
>> You only need dual primary if you want to do live migration between
>> NODE-1 and NODE-2 and in that case the classic 3-way setup doesn't
>> If you don't need live migration, do classic 3-way setups.
>> Hope that help,
>> Matthieu Labbé
>> drbd-user mailing list
>> drbd-user at lists.linbit.com
View this message in context: http://old.nabble.com/Enabling-a-stacked-resource---HELP%21-tp32423513p32471169.html
Sent from the DRBD - User mailing list archive at Nabble.com.
More information about the drbd-user