SAN vs. NAS. Both SAN and network-attached storage (NAS) are methods of managing storage centrally and sharing that storage with multiple hosts (servers). However, NAS is Ethernet-based, while SAN can use Ethernet and Fibre Channel. In addition, while SAN focuses on high performance and low latency, NAS focuses on ease of use, manageability A NAS (Network Attached Storage) and a DAS (Direct Attached Storage) are two different types of data storage systems. While both allow you to store and access data, they have some key differences in how they connect to a network and computer. This leads to the question - can you use a NAS like a DAS if needed? 5. The general difference between SAN and NAS is that SAN is block level (In other words the device accessing the remote storage assigns a file system to the drive) and that NAS is file level (The device hosting the NAS provides a file system for the drive and the device accessing the remote device sees them through a protocol such as NFS or Oil cleanliness is defined as the measure of the level of particle contaminants in the oil. Particle contaminants can include both insoluble (solid or liquid materials that won't mix in with the oil) and hard (e.g. metal shavings) particles. OEMs often provide recommendations for acceptable oil cleanliness levels for their equipment. The key difference between a clustered and traditional NAS is the ability to distribute[citation needed] (e.g. stripe) data and metadata across the cluster nodes or storage devices. Clustered NAS, like a traditional one, still provides unified access to the files from any of the cluster nodes, unrelated to the actual location of the data. RAID 1, on the other hand, offers a safety net in the form of data redundancy. By mirroring the contents of one drive onto another, RAID 1 ensures that data remains available should one of the drives in this configuration meet an untimely end. Needless to say, in any discussion on RAID 0 vs. RAID 1, it's important to keep these differences in .

difference between nas and das