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An [Inode] specifies which DiskCluster~s a file occupies as well as a few attributes such as creation and last-modification times. To that end it contains a list of direct, indirect, and doubly and triply indirect pointers. On some FileSystems, very small files can be stored directly in the [Inode] itself. Sophisticated FileSystems create [Inode]s on demand, but with most, the number of [Inode]s on a [Partition] has to be decided on during FileSystem creation. It is rare to run out of [Inode]s unless you have an unusual usage profile such as storing a news spool or [Squid] cache. Exhaustion of the inodes will prohibit the creation of additional files even if sufficient HDD space exists. !!How many Inodes do I have free? *df - i !!What information does an [Inode] store? *The size of the file in bytes. *The file's physical location (the addresses of the blocks of storage containing the file's data on a HDD) *The file's permissions. *The file's owner. *Timestamps (ctime,mtime and atime). See [FileTimes] *A reference count telling how many hard links point to the [Inode]. !!How to obtain a file's [Inode] number *ls -i <file>
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Inode
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IPCop
FileAllocationTable