Serge (fabric) with worsted warp and a woollen weft. Denim is a cotton fabric with a similar weave; its name is believed to be derived from "serge de Nîmes" after Nîmes in France. Serge (fabric) Serge is a type of twill fabric that has diagonal lines or ridges on both sides, made with a two-up, two-down weave. The worsted variety is used in making military uniforms, suits, great coats and trench coats. Its counterpart, silk serge, is used for linings. French serge is a softer, finer variety. The word is also used for a high quality woolen woven fabric. The name is
Fabric OS MontaVista, switches and directors have the ability of hot firmware activation (without downtime for Fibre Channel fabric), and many useful diagnostic commands. According to free software licenses terms, Brocade provides access to sources of distributed free software, on which Fabric OS and other Brocade's software products are based. Additional products for Fabric OS are offered by Brocade for one-time fee. They are licensed for use in a single specific switch (license key is coupled with device's serial number). Those include: Fabric OS In storage area networking, Fabric OS is the firmware for Brocade Communications Systems's Fibre Channel switches and Fibre