Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1334-6474-2 |
Объём: | 116 страниц |
Масса: | 196 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! An AG or allocation group is a subvolume in a file system which maintains its own track of free blocks and file data (and its own journal, in the case of XFS). This makes simultaneous file operations possible; only one write can happen to an AG at any time, but multiple operations can be performed on the file system, each happening in a different AG. In SMP systems multiple CPUs can write to different AGs, enabling physically concurrent disk operations on a single file system. (Hard disks can only do one thing at a time. However, file systems can span hard disks in various ways (RAID stripe, volume management, etc)).
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.