Anton B. Rang wrote:
Richard wrote:
Any system which provides a single view of data (eg. a persistent storage
device) must have at least one single point of failure.
Why?
Consider this simple case: A two-drive mirrored array.
Use two dual-ported drives, two controllers, two power supplies,
arranged roughly as follows:
-- controller-A <=> disk A <=> controller-B --
\ /
\ /
\ disk B /
Remind us where the single point of failure is in this arrangement?
disk backplane?
Regards,
-Frank
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
