公开(公告)号：US20150074349A1

公开(公告)日：2015-03-12

申请号：US14539292

申请日：2014-11-12

Applicant: Hitachi, Ltd.

Inventor： Yuki NAGANUMA ,  Hirokazu IKEDA ,  Hironori EMARU ,  Koichi MURAYAMA ,  Shinichiro KANNO

IPC: G06F3/06

CPC classification number: G06F3/0665 ,  G06F3/0607 ,  G06F3/0611 ,  G06F3/0631 ,  G06F3/0685 ,  G06F3/0689

Abstract: A storage apparatus coupled to a host device comprises a virtual volume which is a virtual logical volume configured of multiple virtual areas and a pool configured of multiple actual area groups of different performances. A controller manages pool status information which is the information showing which actual area is allocated to which virtual area and access load related to the virtual areas. A management system of the storage apparatus, with reference to the pool status information at multiple points of time from past to present and an access load threshold which is equal to or larger than 1, estimates the used capacity of each actual area group at points of time in the future, calculates the installed/removed amount of each actual area group which is the difference between the estimated used capacity and the current storage capacity, and performs the processing based on the calculated result.

Abstract translation: 耦合到主机设备的存储设备包括虚拟卷，虚拟卷是由多个虚拟区配置的虚拟逻辑卷，以及由不同性能的多个实际区域组配置的池。 控制器管理池状态信息，它是显示哪个实际区域被分配给与虚拟区域相关的虚拟区域和访问负载的信息。 存储装置的管理系统参照来自过去到现在的多个时间点的池状态信息和等于或大于1的访问负载阈值，估计每个实际区域组的使用容量 计算未来的时间，计算作为估计使用容量与当前存储容量之间的差的每个实际区域组的安装/移除量，并且基于计算结果执行处理。

公开(公告)号：US20130311743A1

公开(公告)日：2013-11-21

申请号：US13955358

申请日：2013-07-31

Applicant: Hitachi, Ltd.

Inventor： Masayasu ASANO ,  Koichi MURAYAMA

IPC: G06F12/02

CPC classification number: G06F3/067 ,  G06F3/0605 ,  G06F3/0631 ,  G06F3/0647 ,  G06F3/0667 ,  G06F12/02

Abstract: A physical storage area that is allocated to an unused area of a virtual volume is removed. A management unit sends a request to a server computer to make every piece of data stored in a first logical volume migrate to a second logical volume. The server reads all the data out of the first logical volume and writes the data in the second logical volume. A storage system that includes the first logical volume and the second logical volume allocates a physical storage area to an area of the second logical volume where the data is to be written, and writes the data in the allocated physical storage area. The storage system then deletes the first logical volume.

Abstract translation: 分配给虚拟卷的未使用区域的物理存储区域被去除。 管理单元向服务器计算机发送请求以使存储在第一逻辑卷中的每一条数据迁移到第二逻辑卷。 服务器读取第一个逻辑卷中的所有数据，并将数据写入第二个逻辑卷。 包括第一逻辑卷和第二逻辑卷的存储系统将物理存储区域分配给要写入数据的第二逻辑卷的区域，并将数据写入所分配的物理存储区域中。 存储系统然后删除第一个逻辑卷。

公开(公告)号：US20240231844A1

公开(公告)日：2024-07-11

申请号：US18522965

申请日：2023-11-29

Applicant: Hitachi, Ltd.

Inventor： Mineyoshi MASUDA ,  Koichi MURAYAMA

IPC: G06F9/445

CPC classification number: G06F9/44505

Abstract: Provided is a simple method for performing control so that a measurement load caused by detailed measurement does not degrade performance of an application in accordance with a situation in which the detailed measurement is requested. A control system is connected to a computer system in which one or more hosts that execute processes constituting an application run, and manages a control policy for controlling, according to a load state of the host, execution of measurement processing for acquiring internal information on the host. The control system determines a control policy to be applied when a measurement request is received, and controls, based on the determined control policy and the load state of the host to be measured, execution of the measurement processing for the host to be measured.