STORAGE CONTROL DEVICE AND CONTROL PROGRAM

PROBLEM TO BE SOLVED: To enhance the performance of an I/O access in response to scale-out.SOLUTION: A storage control device #1, in response to scale-out of a storage system 100, references performance information on a first path and extracts the first path, which is the object of load decentraliza...

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Bibliographic Details
Main Authors TSUKADA SHIGERU, FUKUI TOMO, HARA HIDEJI
Format Patent
LanguageEnglish
Japanese
Published 21.04.2016
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To enhance the performance of an I/O access in response to scale-out.SOLUTION: A storage control device #1, in response to scale-out of a storage system 100, references performance information on a first path and extracts the first path, which is the object of load decentralization of an I/O access. The storage control device #1 creates a virtual disk having the same capacitance as a virtual disk to which the first path, the object of load decentralization, is to be connected. The storage control device #1 sets a first path for connecting a new virtual disk to a host device and a second path for connecting the new virtual disk to an added HDD. The storage control device #1 uses the first path, which is the object of load decentralization, for reading in existing data and the new first path for writing in and reading in new data.SELECTED DRAWING: Figure 2 【課題】スケールアウトに応じてＩ／Ｏアクセスの性能を向上させること。【解決手段】ストレージ制御装置＃１は、ストレージシステム１００のスケールアウトに応じて、第１パスの性能情報を参照して、Ｉ／Ｏアクセスの負荷分散対象となる第１パスを抽出する。ストレージ制御装置＃１は、負荷分散対象の第１パスの接続先の仮想ディスクと同じ容量の新たな仮想ディスクを作成する。ストレージ制御装置＃１は、新たな仮想ディスクと上位装置とを接続する新規の第１パスと、新たな仮想ディスクと増設されたＨＤＤとを接続する新規の第２パスとを設定する。ストレージ制御装置＃１は、負荷分散対象の第１パスを既存データの読み込みに使用し、新規の第１パスを新規データの書き込み及び読み込みに使用する制御を行う。【選択図】図２
Bibliography:Application Number: JP20140184051