Nasan (also known as SAN-FS) is a shared disk file system created by DataPlow, that features the ability to give shared, block-level access to a disk volume from multiple client computers without causing file system corruption. DataPlow sells their software directly on a per-seat basis. Each client must purchase the software in order to access a Nasan file system directly. Nasan is made available in Fibre Channel and iSCSI varieties.

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  • Nasan (also known as SAN-FS) is a shared disk file system created by DataPlow, that features the ability to give shared, block-level access to a disk volume from multiple client computers without causing file system corruption. DataPlow sells their software directly on a per-seat basis. Each client must purchase the software in order to access a Nasan file system directly. Nasan is made available in Fibre Channel and iSCSI varieties. DataPlow has also licensed a version of their file system to be used with Zetera storage products. The Zetera product is licensed on a per hardware enclosure basis and thus can be used by unlimited clients at no additional cost. However, additional enclosures can be expensive due to the proprietary hardware and software. Zetera's version has been modified to operate in a "Storage over IP" configuration. The SoIP configuration uses UDP instead of TCP, thus eliminating the need for TCP offload engines that are used in FC and iSCSI, reducing cost and/or processing overhead. Zetera claims that their file system has the ability to scale in size by joining additional volumes without reformatting, and that its speed increases proportionally as additional storage hardware is added (limited only by the network and client computer). Zetera calls their version of the file system Z-SAN. A limited version of Z-SAN is also used in Netgear's Storage Central products. Multiple computers can connect to the Netgear Storage Central at block level using the UDP based SoIP. However, a single volume cannot be scaled across a multiple Storage Central enclosures.
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  • Nasan (also known as SAN-FS) is a shared disk file system created by DataPlow, that features the ability to give shared, block-level access to a disk volume from multiple client computers without causing file system corruption. DataPlow sells their software directly on a per-seat basis. Each client must purchase the software in order to access a Nasan file system directly. Nasan is made available in Fibre Channel and iSCSI varieties.
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  • Nasan
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