I want to build up a new server-config in a small SOHO environment for some virtual machines (VmWare Workstation), like Firewall/VPN or Win8-WS for external access, etc. Some VM’s will be heavily power consuming. The data are company-data. So the aim is to get security with RAID6 but as well useful HDD speed. Of course, a second backup method will be used… The config should survive the next 3-5 years. Therefore I am willing to spend a little bit more. I will use a “msi_Z77A-G45 Thunderbolt” motherboard which has vt-d capability (and I know, only 32 GB RAM).
Now my question is regarding available speed of such a RAID6 configuration (means 4 + 1 or 2 HDD’s). Even if currently with some struggles (currently missing WIN driver, etc) I could use an external Thunderbolt-RAID (Promise Pegasus R6), which is also seen on their website for small Server-Environments. They use 6 x Hitachi 2TB Deskstar 7k3000 (HDS723020BLA642). Not sure why they don't use streamline HDD's in such a 24/7 environment... So: no SAS and no streamline HDD…
On the other hand it may be better to use internal HDD's in a big ATX Case. So, if using a RAID Controller (LSI Logic MegaRAID SAS 9271-8i) on a PCIe 3.0 x8 slot with the same HDD's it would make a substantial cost reduction (nearly 50%).
But I am not sure about the performance. What would be your suggestions?
- is there a big difference between Thunderbolt and an internal PCIe x8 Card?
- if I would use an NAS (in a GB-Network) instead of a Thunderbolt, would it be possible to get similar performance?
- if using the internal LSI RAID, does it make a big difference using an SAS (means 3-4 x more expensive), please be aware that I am not a big company rather a Freelancer…
- is there an internal "Thunderbold"-RAID existing on the market
Thanks in advance for your comments.