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I find that most sites are adding the responsibility of storage management to their existing systems administrator's list of tasks. You can see my previous answer with regard to storage tasks.
At large sites (100+ TB), I am seeing storage broken out of the system administration responsibilities. System administrators are being used to support the OS, applications and network but when it comes to databases and file systems, the storage administrator takes over. Of course there are overlapping responsibilities but I've seen that the system administrator does most of the hands-on work while the storage administrator defines data layout/placement, recommends new storage hardware/software and interfaces with the application owners and DBAs.
Another interesting trend as storage networking matures is that network personnel are taking on storage tasks. When you at look the acceptance of NAS, this is a logical extension.
Jim
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