I'm the sole admin for an SMB and we're running Exchange 2003, SQL Server 2005, and hosting an internal web site. All of our mission-critical systems are running on individual boxes and I've been instructed by the execs that we can tolerate no more than a 15-minute down time on anything.
Toward that end, I've been considering virtualization and SAN implementation, but I'm very green in this area. I don't have a tremendous amount of capital at my disposal (about 10K) and I don't want to reinvent the wheel here, but I'm trying to come up with a reasonably cheap, reliable solution that would provide the uptime we're looking for.
Currently, we have a Windows infrastructure with Standard licensing for everything. I know we can't cluster unless we upgrade to Enterprise versions of software, but my boss is unlikely to accept that since licensing alone would eat our budget. Has anyone had experience migrating physical servers to virtual, and utilizing a SAN as the backend storage? I've got a DR site at my disposal as well, and I'm thinking it may be easier for me to invest in some VM replication as long as I've got SANs at both sites.