mogilefs vs SAN

[feihu_roger]

The Mysql DB of mogilefs Tracker is a single point of failure.

> The SAN is a single point of failure;  if it goes down your data is lost
> or at least the data added since the last backup is lost.  To make the
> SAN more reliable you need to buy a more expensive SAN.  Even then I've
> seen a SAN costing several $100K, with 0+1 RAID die and lose data
> because the disk controller failed.


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