If you find that you are running out of space, you might consider implementing a tiered storage model, where data that has been around for a while and not accessed frequently can be moved to less costly online storage (e.g., SATA drives). This will free of premium storage space and balance out the economics of storage. You should also consider moving data that has been in teir-2 let’s say to NAS and/or tape — tiers 3 and 4 respectively in this case for the sake of illustration.
Buy storage management software. You didn’t mention if you have multiple locations, multiple vendors, etc, but I’ve found the storage management tools from Symantec, AppIQ, and Onaro to be very useful. There is also a newer tool out from a company named Akorri that is very cool (has active performance monitoring from all your hosts without the use of host agents).
Consider purchasing an easier to manage storage array. 3PAR for example, takes 5 seconds to provision a LUN of any size or RAID type. 3PAR also allows you move data around on the backend of the array, from FC to SATA without taking the LUN offine. Talk to Myspace about how they grew for 3 years on 3PAR gear and didn’t have to hire additional storage engineers. (disclaimer, I used to work for 3PAR).
Is fibrechannel too complicated or expensive? Use iSCSI.
Is your SAN too complicated? Hire a consultant. They can write scripts, train new employees and help you with documentation and major products. Want to do Data Classification or ILM? Want to be SOX compliant? Don’t do all the hard work yourself, hire experts.