Good day.
Right now I have discussion in ietd maillist about possibility to build
following configuration:
DriveA ---- DRBD ----iet - - - - -iscsi-initiator --\
| +multipath ---
LVMoISCSI --- blktap(2) --- virtual machine(s)
DriveB----- DRBD-----iet - - - - -iscsi-initiator --/
I hope, you can see XCP part here (iscsi initiator, multipath, lvm and
so on). Guys in ietd maillist says that if DRBD will be in
primary/primary mode any statefull SCSI command will trash data beyond
repair level.
Question is: Is XCP components (LVM, blktap and etc) use any statefull
operation like SCSI reservation and task management?
Thanks.
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