Asterisk dns not updating

With the increase of capacity and the increase of data being transferred, the write operation needs to be made more efficient.SDXC cards, running at UHS-I have a minimum guaranteed write speed of 10 MBps and ex FAT plays a factor in achieving that throughput through the reduction of the file system overhead in cluster allocation.ex FAT and the rest of the FAT family of file systems does not use indexes for file names, unlike NTFS which uses B-trees for file searching.When a file is accessed, the directory must be sequentially searched until a match is found.

Like NTFS and HFS , ex FAT is a proprietary file system.This optimization is analogous to an extent in other file systems, except that it only applies to whole files, as opposed to contiguous parts of files.ex FAT is also supported in a number of media devices such as modern flat panel TVs, Some vendors of flash media, including USB pen drives, compact flash (CF) and solid state drives (SSD) are shipping from the factory with some of their high capacity media pre-formatted with the ex FAT file system.Microsoft asserts that ex FAT is covered by US Patent 8583708, Quick File Name Lookup Using Name Hash, which is an algorithm used in ex FAT to speed up file searches.Microsoft had also applied for, and so far in some cases, received additional US patents on separate components that are used within ex FAT.