my group is in the market for plentiful storage. We traditionally used big-iron FC-attached SANs, but they are way expensive and provide much more performance than we require.
We want highly available shared storage, and if it performs like local desktop-class drives, that's fine.
Are there shared disk solutions out there that can get us slower but bigger disks?
We like NexSan SataBeast but they don't have a fully global presence which makes support awkward (we're a global company).
Is there any storage of this type that you would recommend? We'd prefer to use FC-attached storage but we're open to suggestions.
EDIT: To answer the requests for clarification, we'd like
- globally available hardware support
- tens of TB with the ability to grow
- Highly Available: Ability to provide service through common failures, so:
- hotpluggable drives
- multipath IO
- active/active controller
- Anything like this that has a low cost/benefit ratio
- NFS only might be an option depending on HA-ness and performance
- Price: whatever it costs, but as little as possible
Basically I'm wondering what the 3D graph of price-performance-availability looks like currently. If there are sharp exponential curves, I'd be interested in the systems in those elbows.
As noted below, this could be done by a farm of PC-level hardware serving iSCSI and host-level software RAID6. This proves that whatever an EMC top-end storage array costs, it is probably too much.