On 7 Jun 2006, at 12:51, Nick Murtagh wrote:
>conor at discuskeeping.com wrote:
>> Thats why you use shared storage, so that in case of hardware
>> failure, you can startup / transfer the vm's seemlessly to the
>> other node thus minimising downtime.
>> Uh... then the shared storage is your single point of failure.
Yes, *except* that well-known techniques exist for building storage
in a redundant fashion, using RAID on the disks and redundant
interconnects (fabric) and head units. SAN vendors have been doing
this for years. It's possible to build storage networks to an
arbitrary degree of reliability.
Colm
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