iSCSI is a transport.
logically, any "multipathing" and "failover" belongs in a layer above it --
typically as a block-layer function -- and not as a transport-layer function.
multipathing belongs elsewhere -- whether it be in MD, LVM, EVMS, DevMapper
-- or in a commercial implementation such as Veritas VxDMP, HDS HDLM, EMC
PowerPath, ...
>Both iSCSI and ENBD currently have issues with pending writes during
>network outages. The current I/O layer fails to report failed writes
>to fsync and friends.
these are not "iSCSI" or "ENBD" issues. these are issues with VFS.
cheers,
lincoln.
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