I'm looking at consumer grade ESATA DAS solutions for my home lab.
I use vmware workstation with mucho VMs currently all stored on the same 1TB 7200 RPM SATA disc- performance is pretty terrible as you can imagine.
But what perplexes me, looking on newegg, is how cheap complete ESATA RAID enclosures (for home users) are vs how expensive standalone RAID controllers (also for consumers) are. It makes me suspicious that the controllers bundled with these 4-8 bay enclosures are all garbage.
If I buy an external storage solution packaged with a SATA RAID card will I be able to upgrade the RAID card in the future? I know changing the card will mean rebuilding the array and restoring all the data of course. Apart from the slightly inconveniencing penchant of most higher end controllers not having external ESATA ports, which can easily be solved, are there any reasons why they wouldn't be compatible? As long as the card supports Port multiplier and SATA it should be able to access the disks right?
For a specific example I'd like to buy a complete solution like the "Sans Digital 4-Bay eSATA Tower Storage Enclosure", but then if necessary upgrade the RAID card to something like the "HighPoint RocketRAID 2720SGL".
I'm not asking for any specific buying suggestions I just want to be sure these two types of products will be compatible and I'm not misunderstanding something.