>> [Sorry, this is not directly ON-TOPIC!]
>>
>> For a new proposal we are writing [has to do with disk
and so on...
>
>Note that filesystem sharing is not supported. This configuration
>is only for raw hardware 'sharing'- and in this particular case was
>for a 'soft failover' configuration.
i could imagine that mounting a harddisk read-only on several pc's should
work.
what i'd like to have is a parameter for mount to disable the cache, so
that 1 pc
can remount rw and write newer contents on the disk without getting other
pc's in invalid fs-states.
maybe you need 2 partitions: 1 is mounted ro for some pc's, the other is
filled from 1 pc. when you are finished, the new one is remounted ro from
all pc's.
-> downtime for new data is not a big concern (umount, mount).
if reached through a symlink then (re-)mounting could take some time, if
only the symlink can be changed rapidly.
if using multiple scsi controllers on one bus works, this should also work.
we could have multiple hosts share 1 or more disks for failover, maybe with
2 scsi chains and mirroring across them. (linux-high availability feature).
if ip over scsi makes it to 2.3, rewriting for the multiple-controller
situation is included for free.
Ph.
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