Structure of NTFS :: essays research papers

Structure of NTFSThe NTFS file system is utilize in all critical Microsoft Windows systems. It is an advanced file system that makes it polar from the UNIX file systems that the original TCT was designed for. This document gives a quick overview of NTFS and how it was implemented. The biggest exit is the use of Alternate Data Streams (ADS) when specifying a meta entropy structure.MFT The Master file cabinet Table (MFT) contains entries that describe all system files, user files, and directories. The MFT even contains an entrance (0) that describes the MFT itself, which is how we determine its current size. Other system files in the MFT include the groundwork Directory (5), the cluster allocation map, Security Descriptors, and the journal. MFT ENTRIES each(prenominal) MFT ingress is given a number (similar to Inode numbers in UNIX). The user files and directories start at MFT 25. The MFT institution contains a list of propertys. Example attributes include "Standard Inf ormation" which stores data such as MAC times, "File Name" which stores the file or directories name(s), $DATA which stores the actual file content, or "Index Alloc" and "Index decide" which contain directory contents stored in a B-Tree. Each type of attribute is given a numerical value and more than one object lesson of a type stooge exist for a file. The "id" value for from each one attribute allows one to specify an instance. A given file female genitalia shake off more than one "$Data" attribute, which is a method that can be utilize to hide data from an investigator. To get a part of attribute type values to name, use the fsstat command. It displays the contents of the $AttrDef system file. Each attribute has a cope and a value and an attribute is each resident or non-resident. A resident attribute has both the header and the content value stored in the MFT entry. This only works for attributes with a miserable value (the f ile name for example). For larger attributes, the header is stored in the MFT entry and the content value is stored in gathers in the data area. A Cluster in NTFS is the same as FAT, it is a consecutive group of sectors. If a file has too many different attributes, an "Attribute List" is used that stores the other attribute headers in additional MFT entries. FILES Files in NTFS typically have the following attributes S.N.     Attribute     Description1.          $STANDARD_INFORMATION      Contains MAC times, security ID, Owners ID, permissions in body politic format, and quota data.