Hello, when you executed `linstor node create C ...` Linstor should have given you a list of supported layers + providers or reasons why layers / providers are not supported. You can recheck that list with linstor node info That command should tell you why Linstor thinks that C does not support DRBD.
Best regards, Gabor On Wed, Mar 3, 2021 at 12:29 PM Ferran Alchimia <[email protected]> wrote: > Hi, > > I currently have a 2 node (combined) cluster and I want to add an HA > linstor-controller. I was following this guide > https://www.linbit.com/drbd-user-guide/linstor-guide-1_0-en/#s-linstor_ha > > The first step asks for an AutoQuorum capable resource. So I think I have > to add a third node to my cluster. This is my starting position: > > ╭─────────────────────────────────────────────────────╮ > ┊ Node ┊ NodeType ┊ Addresses ┊ State ┊ > ╞═════════════════════════════════════════════════════╡ > ┊ H ┊ COMBINED ┊ 10.0.7.106:3366 (PLAIN) ┊ Online ┊ > ┊ T ┊ COMBINED ┊ 10.0.7.105:3366 (PLAIN) ┊ Online ┊ > ╰─────────────────────────────────────────────────────╯ > > ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ > ┊ StoragePool ┊ Node ┊ Driver ┊ PoolName ┊ > FreeCapacity ┊ TotalCapacity ┊ CanSnapshots ┊ State ┊ > > ╞══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╡ > ┊ DfltDisklessStorPool ┊ H ┊ DISKLESS ┊ ┊ > ┊ ┊ False ┊ Ok ┊ > ┊ DfltDisklessStorPool ┊ T ┊ DISKLESS ┊ ┊ > ┊ ┊ False ┊ Ok ┊ > ┊ drbdpool ┊ H ┊ LVM_THIN ┊ vgthc1/drbdpool ┊ > 3.13 TiB ┊ 3.49 TiB ┊ True ┊ Ok ┊ > ┊ drbdpool ┊ T ┊ LVM_THIN ┊ vgthc1/drbdpool ┊ > 3.13 TiB ┊ 3.49 TiB ┊ True ┊ Ok ┊ > > ╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ > > Since my third node won't have any storage devices dedicated to drbd I > presumed that I could add a DISKLESS node (I don't know if this is true), > just for quorum and not for replica. > > linstor n create --node-type satellite C 10.100.1.3 > > linstor n l > ╭───────────────────────────────────────────────────────────╮ > ┊ Node ┊ NodeType ┊ Addresses ┊ State ┊ > ╞═══════════════════════════════════════════════════════════╡ > ┊ C ┊ SATELLITE ┊ 10.100.1.3:3366 (PLAIN) ┊ Online ┊ > ┊ H ┊ COMBINED ┊ 10.0.7.106:3366 (PLAIN) ┊ Online ┊ > ┊ T ┊ COMBINED ┊ 10.0.7.105:3366 (PLAIN) ┊ Online ┊ > ╰───────────────────────────────────────────────────────────╯ > linstor sp create diskless C drbdpool > > > ╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ > ┊ StoragePool ┊ Node ┊ Driver ┊ PoolName ┊ > FreeCapacity ┊ TotalCapacity ┊ CanSnapshots ┊ State ┊ > > ╞══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╡ > ┊ DfltDisklessStorPool ┊ C ┊ DISKLESS ┊ ┊ > ┊ ┊ False ┊ Ok ┊ > ┊ DfltDisklessStorPool ┊ H ┊ DISKLESS ┊ ┊ > ┊ ┊ False ┊ Ok ┊ > ┊ DfltDisklessStorPool ┊ T ┊ DISKLESS ┊ ┊ > ┊ ┊ False ┊ Ok ┊ > ┊ drbdpool ┊ C ┊ DISKLESS ┊ ┊ > ┊ ┊ False ┊ Ok ┊ > ┊ drbdpool ┊ H ┊ LVM_THIN ┊ vgthc1/drbdpool ┊ > 3.13 TiB ┊ 3.49 TiB ┊ True ┊ Ok ┊ > ┊ drbdpool ┊ T ┊ LVM_THIN ┊ vgthc1/drbdpool ┊ > 3.13 TiB ┊ 3.49 TiB ┊ True ┊ Ok ┊ > > ╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ > > I add the --diskless-on-remaining flag for the rg definition (I don't know > if this is needed) > linstor rg m drbdpoolvm --place-count 2 --diskless-on-remaining > > linstor rg l > ╭──────────────────────────────────────────────────────────────────╮ > ┊ ResourceGroup ┊ SelectFilter ┊ VlmNrs ┊ Description ┊ > ╞══════════════════════════════════════════════════════════════════╡ > ┊ DfltRscGrp ┊ PlaceCount: 2 ┊ ┊ ┊ > ╞┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄╡ > ┊ drbdpoolvm ┊ PlaceCount: 2 ┊ 0 ┊ ┊ > ┊ ┊ StoragePool(s): drbdpool ┊ ┊ ┊ > ┊ ┊ DisklessOnRemaining: True ┊ ┊ ┊ > ╰──────────────────────────────────────────────────────────────────╯ > > And then I try to create a test resource > linstor resource create T test > SUCCESS:(...) > > linstor resource create H test > WARNING: Could not find suitable node to automatically create a tie > breaking resource for 'test'. > SUCCESS:(...) > > linstor resource create C test > ERROR:Description: Satellite 'C' does not support the following layers: > [DRBD]Details: Node(s): 'C', Resource: 'test'Show reports: linstor > error-reports show 603F507D-00000-000005 > > As you can see the resource creation fails on C node. I have installed > drbd on that node just in case, here goes the output: > drbdadm --version > DRBDADM_BUILDTAG=GIT-hash:\ a7820b3c14497a34f955ba5ce56cf1bc9d2d353e\ > build\ by\ @buildsystem\,\ 2021-02-09\ 09:27:27 > DRBDADM_API_VERSION=1 > DRBD_KERNEL_VERSION_CODE=0x08040b > DRBDADM_VERSION_CODE=0x091000 > DRBDADM_VERSION=9.16.0 > > Overall my C node does not have any "storage" for the drbd cluster, I just > want it to be a diskless node in order to achieve HA for the resources. It > seems I have misunderstood something but I just don't know where to look > for more info. Any hints/help would be appreciated. > > Regards, > Ferran > _______________________________________________ > Star us on GITHUB: https://github.com/LINBIT > drbd-user mailing list > [email protected] > https://lists.linbit.com/mailman/listinfo/drbd-user > -- Best regards, Gabor Hernadi
_______________________________________________ Star us on GITHUB: https://github.com/LINBIT drbd-user mailing list [email protected] https://lists.linbit.com/mailman/listinfo/drbd-user
