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I miss something.... If I dedicated a big LUN ISCSI as storage pool and LVM on top, ex : /dev/mapper/test-data test-data (360030d909d02320758dad395ca947f29) dm-0 DataCore,test-D size=4.0T features='0' hwhandler='1 alua' wp=rw |-+- policy='round-robin 0' prio=50 status=active | |- 8:0:0:188...

Arg....! One ISCSI connection supported and 2 thru multipath not ! In a HA architecture it's damaging

My DataCore servers have sufficient memory Yes all hosts can use the /dev/mapper, they are all connected to datacore. So I consider that all devices are shared. This method is ok with 10 Hypervisors Xen/toolstack xl on Debian Buster (migration offline/online) Thx

Re Use LUN /dev/mapper/sl-pascal-int-root is OK ! But When I want to migrate : can't migrate local disk '/dev/mapper/sl-pascal-int-root': local file/device It's not a local device but a ISCSI device !?

Thank's for rapid response ! The 1st reason was performance, we have a good experience with this method. Snapshot and growing filesytem are managed by Datacore, our backup tool use directly /dev/mapper/xxx in read only For migrate to Proxmox: if I can reuse my LUNs in the first step , it's...

Hi I'm newbee with Proxmox......so : Actualy I use Hypervisor Xen/toolstack xl on Debian Buster. I have 300 VMs on 10 Hypervisors. For each VM I have one LUN as system disk on a SanSymphony Datacore acceded through ISCSI and use Multipathing tcp: [1] 192.168.158.200:3260,1...