[sheepdog-users] Sheepdog image fills only one node

Stefan Priebe - Profihost AG s.priebe at profihost.ag
Fri Jun 29 17:05:42 CEST 2012


Hello list,

i've created my first sheepdog cluster and formated it with:
# collie cluster format -b farm --copies=2

i see 4 nodes:
# collie node list
M   Id   Host:Port         V-Nodes       Zone
-    0   10.0.255.100:7000      64 1694433290
-    1   10.0.255.101:7000      64 1711210506
-    2   10.0.255.102:7000      64 1727987722
-    3   10.0.255.103:7000      64 1744764938

i then created an image with:
# ./qemu-img create sheepdog:testsheep 320G
Formatting 'sheepdog:testsheep', fmt=raw size=343597383680

When i then boot my kvm with:
# kvm ... -drive 
file=sheepdog:10.0.255.100:7000:testsheep,if=none,id=drive-virtio0,cache=writeback,aio=native 
-device virtio-blk-pci,drive=drive-virtio0,id=virtio0

I see my block device vda BUT all file I/O only goes to 10.0.255.100 and 
only fills the drive on 10.0.255.100.

! An important note !
My kvm host is NOT part of the corosync cluster as it uses cman and 
corosync XML from proxmox. I haven't found any documenation which told 
me if this could be the problem.

Greets
Stefan




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