I have an upcoming server refresh that will be happening and just wanted some advice from those who've dealt with SAN/NAS etc. on what is recommended given my situation. currently I have four servers: 1 Windows 2003 Domain controller, 1 Ms SQL server and 1 VMware ESX3.5i server using DAS (and running three VM's) and 1 server running Untangled Linux firewall. The DomainController, SQL SErver and Untangled Linux Server are due to be replaced, the ESX server is less than a year old.
I've been loking at a SAN but i'm beginning to think it's more than what I need for the environment. Originally i was thinking of purchasing a dedicated SQL server and another VMware server (this one is an HP DL 360G5 with three NICS and 12GB RAM/Dual Quad-core) and then running VM's on the iSCSI SAN but now i'm reconsidering due to complexity and cost.
I am the only IT staff here so it's all up to me to maintain it and ease of administration is important to me. The reason i was looking at an iSCSI SAN was to centralize the data and point the VM's to and do vmotion etc. it but I think it's going to cost me more tha $20K to do a SAN properly probably more like $50K or more.
So now i'm thinking of just replacing the servers noted and going DAS and using double-take to replicate the physical servers to a VM for redundancy and DR.
Any suggestions on this situation would be helpful.