摘要:
Multiple types of storage devices which have different performance are appropriately allocated to multiple virtual volumes in accordance with the performance requirements of the respective virtual volumes. In cases where, among virtual volumes 82 for which response times have been specified, there is a [virtual volume] that has a shortage of pages to which SSDs 70 should be allocated and that does not satisfy the performance requirement when its Tier boundary value β is adjusted to Tier boundary value β′ and, if unallocated pages as the pages to which SSDs 70 should be allocated do not exist, Tier boundary value γ or Tier boundary value α of another virtual volume is adjusted to Tier boundary value γ′ or the Tier boundary value α′, and pages to which SSDs 70 are allocated are secured in the virtual volume 82 for which the Tier boundary value has been adjusted.
摘要:
Multiple types of storage devices which have different performance are appropriately allocated to multiple virtual volumes in accordance with the performance requirements of the respective virtual volumes. In cases where, among virtual volumes 82 for which response times have been specified, there is a [virtual volume] that has a shortage of pages to which SSDs 70 should be allocated and that does not satisfy the performance requirement when its Tier boundary value β is adjusted to Tier boundary value β′ and, if unallocated pages as the pages to which SSDs 70 should be allocated do not exist, Tier boundary value γ or Tier boundary value α of another virtual volume is adjusted to Tier boundary value γ′ or the Tier boundary value α′, and pages to which SSDs 70 are allocated are secured in the virtual volume 82 for which the Tier boundary value has been adjusted.
摘要:
A storage system comprises multiple first storage apparatuses, and a controller which provides a first logical volume corresponding to a storage area of the multiple first storage apparatuses to a host computer. The controller partitions a storage area corresponding to the first logical volume into multiple first physical storage areas, manages the partitioned multiple first physical storage areas as physical storage areas of a storage pool, creates a first virtual volume which is provided to the host computer, and associates, from among the multiple first physical storage areas, a physical storage area in which user data is stored, with the first virtual volume.
摘要:
Proposed are a highly reliable storage system capable of inhibiting the problematic operation or change of state in the storage system, and a known problem information management method capable of improving the reliability of the storage system. The storage system is provided with a storage apparatus including a storage medium for storing data, and a management apparatus for managing the storage apparatus. The management apparatus includes an apparatus-side known problem information storage unit for storing known problem information as information concerning a problematic operation or a change of state, a maintenance management terminal operation controller for receiving a user's operation or change of state and creating history information according to the operation or change of state, and an apparatus-side known problem information search unit for searching, from the apparatus-side known problem information storage unit, known problem information corresponding to the history information, wherein the maintenance management terminal operation controller inhibits the operation of the searched known problem information.
摘要:
A method for performing a system reconfiguration of a storage system includes displaying a configuration window visually showing a configuration of a plurality of components in the storage system within an operation screen. An input area is displayed within the operation screen, the input area being provided for entering one or more components to be reconfigured. A performance window is displayed within the operation screen, the preference window providing bandwidth utilization information of one or more of the components in the storage system. The configuration window, performance window, and the input area are all viewable at the same time without activating another operation screen.
摘要:
Configuration information settings for a storage device are made highly reliable and facilitated. The storage device includes a service processor for setting storage device configuration information, and a terminal device connected to the service processor via a private line to send a command group, received from an operator and related to the storage device configuration information, to the service processor. The service processor also includes a device for determining approval or denial of execution of the command group prior to execution of the command group received from the terminal device.
摘要:
This invention aims to optimize an entire storage system by equalizing the access counts in appropriate units. When migrating data in pool volumes to equalize the data access counts, which data migration—data migration in units of pages or data migration in units of volumes—is most appropriate is judged based on the information stored in an access information table storing access information, which is the information about the access counts for the data stored in the disk drives and, based on the judgment, data is migrated in units of pages or volumes so that the data access counts are equalized among groups. The data migration is repeated until the data access counts are equalized among the groups.
摘要:
[Object ] This invention aims to optimize an entire storage system by equalizing the access counts in appropriate units.[Solution] When migrating data in pool volumes to equalize the data access counts, which data migration—data migration in units of pages or data migration in units of volumes—is most appropriate is judged based on the information stored in an access information table storing access information, which is the information about the access counts for the data stored in the disk drives and, based on the judgment, data is migrated in units of pages or volumes so that the data access counts are equalized among groups. The data migration is repeated until the data access counts are equalized among the groups.
摘要:
An object of the present invention is to prevent data from being tampered with, and to prevent operation mistakes, when sending and receiving data between a management software managing storage devices.Encrypting predetermined information by using a first key managed by a first manager when temporarily keeping the predetermined information in a data holding unit; decrypting the predetermined information encrypted with a second key kept in a storage device managed by a second storage manager when moving the encrypted predetermined information to the second storage manager; and arranging the predetermined information in the second manager based on the decryption result.
摘要:
In an exclusive lock management in common to both the In-Band and the Out-of-band, a lock control technique of a storage system capable of removing the factor that may cause the discrepancy in the configuration information in a disk array system is disclosed. In the storage system, a shared memory in a DKC of a storage subsystem has lock management information for uniformly managing the operation authority for the configuration information in the shared memory that is used in common by both the channels of the host terminals and the management client terminals, and a CPU in the DKC gives the operation authority for changing the configuration information to either the host machine or the management client based on the lock management information in the shared memory in response to an access request from the host terminals or the management client terminals.