Best configuration for RAMDisk like behaviour?

[petasiii]

Hello,

I intend to buy 3 licences (2xPC,1xServer) for myself but before I do so I have some questions.

Can you transfer licence from PC to PC when upgrading?
Can you upgrade PC licence to server one?

The bigger question is how to make PrimoCache behave like overprovisioned persistent RAMDisk. I have RAM disks on my machines, but those are getting too small for the stuff and get cleared on powerfailures, BSODs and that stuff. First lets clarify what I mean by that:
1)There is a mechanical slow drive (5.6K for PC, 15K for server) with a small partition in the desired capacity say 32GB for PC and 64GB for server - it is very write intensive environment with petabytes written
2)Free RAM amount for ramdisk is limited to say 8GB for PC and 24GB for server
3)Contents must be persistent in timeframe of minutes (say I can lose last minute of data written)
Now what I want to achive:
*I want to defer-writes, thus accelerating the drive in a RAMDisk fashion
*I want PrimoCache to behave like a RAMDisk in a way, that only when the cache is full the data will be dropped from it (the oldest-LRU first) - also all written data should be kept in cache as long as possible for fast read recall.

How do I setup the software to do this, or is it doing it mostly by default?
I know how to setup defer write and sizes, I am more interested if I should split cache or what algo should I use?

Thanks

[Support]

Can you transfer licence from PC to PC when upgrading?

Please see http://www.romexsoftware.com/en-us/lice ... icies.html

Can you upgrade PC licence to server one?

Yes, just pay the price difference.

How do I setup the software to do this, or is it doing it mostly by default?I know how to setup defer write and sizes, I am more interested if I should split cache or what algo should I use?

I think you may just use 100% write cache with defer-write on for your scenario. As it is a write intensive system, you may set a small latency for defer-write, like 10~60 sec. You don't need to set other advanced defer-write options, just keep default values.
Cache data will not be dropped until the cache space is full.

[petasiii]

Thanks for clarification, the licensing terms are good as is the cache management.
During this weekend I will deploy trials on my home cluster and if all works I will get licences.