When it comes to consolidating servers one key concern is the hardware capability to handle that workload simultaneously. CPU is not an big issues since we’re having more rough horsepower on those. Disk speed and network speed has been key constraint areas. I’ve been discussing about using iSCSI for storage protocols and it’s popularity.
SAN storage has been the preferred method for the VHD hosting in most scenarios. To communicate with the SAN storage some vendors support HBA adapters, Even though this solution is good it comes with a hefty price tag. Step into the iSCSI protocol over the existing Ethernet. Ethernet has been improving for vastly and IT companies focusing on using Ethernet as the preferred method. As a result 10 Gbps has been introduced to cater the market requirement.
The interesting story I want to bring is Microsoft has incorporated with Intel to bring i million IOPs over iSCSI protocol! That means speed never will be a key issue again for you. Check out the following webcast which describe about this technology. Apart from that additional information can be found over here about this webcast.
bottom line is companies can carefully evaluate how they really want to move with storage and the storage designing and what components need to there. iSCSI and 10 G networks are getting popular so it’s time to invest your money carefully on virtualization and get maximum ROI.
Edit: I thought of highlighting this article again and it’s significant since at this stage Server Virtualization is having a rapid growth. Most of the companies I’m interacting are having the desire to taste the virtualization but don’t have the budget of owning FC SAN. Last year I’ve highlighted the advantage of considering the software based iSCSI solutions. Guess what that really applies now to most of our SMB, SME and also Enterprise customers who want to have their certain business applications hosted in virtualization environment. Intel has released the whitepaper of the test they carried out on this test lab.