In simple terms, one indoe equals to one file. Once the number of inodes allowed on the server has been reached, you should either change the package or delete unnecessary files.
Inode, or more precisely index node – is the UNIX data structure that stores information regarding file system objects, such as files, directories etc. Inode stores the information regarding the owner, what rights are given to the particular file, it’s size etc. Therefore, for each directory, file and other item in the file system there is an inode that stores its metadata.
In common environment, the question of counting the number of inodes is rarely placed on the agenda, but in the field of web-hosting and virtual servers, this issue is quit relevant. The number of objects can drastically affect the performance of the file system. Poorly built applications the cause of excessive inode usage. Web stores also require a large amount of inodes by using a variety of small-sized files that store information.
As for small web stores, using such platforms, may not end up with such problems, however the bigger the store – the more inodes it uses.
Package I contains 256 000, package II 384 000 and package III 512 000 inodes. Inodes can also be ordered separately without upgrading the package. Price list for web-hosting service and additional services can be found here.
The limitation of the inodes is introduced for a more stable functioning of the virtual servers.