saturated disk

飽和ディスク

瞬間I/O負荷が性能以上に達し，その負荷を構成する要求を満たすことができなくなったディスク．数学的には，飽和ディスクのI/Oキューはやがては無限に長くなる．しかし実際には，多くの場合ユーザ側の反応や他のシステム要素が徐々に飽和ディスクへ到達する新規リクエストの到着率を減らす．

使用分野: Storage System

A disk whose instantaneous I/O load is as great as or greater than its capability to satisfy the requests comprising the load. Mathematically, a saturated disk's I/O queue eventually becomes indefinitely long. In practice, however, user reaction or other system factors generally reduce the rate of new request arrival for a saturated disk.

CONTEXT [Storage System]

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