SQL server HA when running with PCI Flash device

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http://serverfault.com – I want to purchase a PCI based Flash storage device for our ESXi server hosting our SQL Server machine. We use SQL Server 2008 standard edition. storage is on Netapp via NFS. It is a VM (ESXi 5.1) Since I don't think I can trust the single PCI device as I do with Netapp I want to be able to fall back as quickly as possible. What are my best (quick and cheap) options for this? Thanks. (HowTos)