![]() Also, since the data is stored in block form, you can format an iSCSI target with whatever format your file system can support. That remote device, if it's a part of a RAID-protected volume, will be much safer than a single hard drive. It also allows you to install programs to remote storage. Firstly, it allows you to perform Windows Backups to the machine over a network without owning Windows 7 Professional. This allows for all sorts of neat functionality. ![]() These ones are coming from two separate SAN appliances in our lab. Here, the Media drive and the VRAID drive are iSCSI targets. In addition, data is transferred in block form, rather than in file form, and the storage devices appear as local devices.Ĭan you tell which of these are physical hard drives and which ones are SAN storage? Fibre Channel uses fibre cables which provide lower latency than iSCSI, which is typically run over copper cabling using SFP+ or RJ45 connectors. Two of the more common ones are Fibre Channel and iSCSI. The network also doesn't matter, but requires hardware and software support. Depending on the implementation, a SAN might be sharing individual hard drives, or volumes spread across multiple hard drives. Traditional implementations in the enterprise environment will use a dedicated network, and the storage is consolidated into a SAN appliance. There are a couple of concepts that I'll mention, starting with the idea of a Storage Area Network:Ī SAN is a network which provides access to storage. ![]() If your storage is high-performance, then your network is usually the next bottleneck in the system, especially when multiple users are connected to a NAS. Much of it revolves around increasing storage performance through caching and complex RAID arrays, but there's less discussion about the networks they're connected to. I see lots of talk about NAS setups in the storage section.
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