摘要:
According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.
摘要:
According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.
摘要:
Power savings for a storage apparatus while preventing a drop in response performance is achieved. When the storage area supplied by the memory apparatus groups is not accessed by the host apparatus for a predetermined period, stop operation is performed for each of the memory apparatuses configuring the memory apparatus groups. The management apparatus groups, among the resources, resources with overlapping time zones for which the number of accesses by the application is zero, in the same group, and maps each of the groups to the memory apparatus groups respectively. At this time, if the number of accesses in each of the time zones of the groups of resources mapped to the memory apparatus groups exceeds the reference value of the memory apparatus groups, the group is divided into a plurality of groups and each of the plurality of groups is mapped to the memory apparatus groups.
摘要:
An object of the present invention is to keep an appropriate amount of a refrigerant to be circulated through a refrigerant circuit and prevent an overload operation of compression means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side. The refrigerating apparatus which obtains the supercritical pressure on the high pressure side comprises a refrigerant amount regulation tank connected to the refrigerant circuit on the high pressure side via a communicating circuit; a communicating circuit which connects the upper part of this tank to a medium pressure region of the refrigerant circuit; a communicating circuit which connects the lower part of the tank to the medium pressure region of the refrigerant circuit; an electromotive expansion valve of the communicating circuit; an electromagnetic valve of the communicating circuit; an electromagnetic valve of the communicating circuit; and control means for controlling these valves to collect a refrigerant circulated through the refrigerant circuit in the tank and discharging the refrigerant to the refrigerant circuit.
摘要:
According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.
摘要:
A multiple cylinder rotary compressor according to the present invention comprises a driving shaft, cylinders concentric to the driving shaft, rotors driven by eccentric portions of the rotary shaft to rotate along the inner circumferential surface of the cylinders, vanes for dividing each of the cylinders into a compression side and a suction side, a partition plate for separating the cylinders from each other, and a control through-hole for connecting the cylinders with each other so that a refrigeration capacity is controlled.
摘要:
An object of the present invention is to keep an appropriate amount of a refrigerant to be circulated through a refrigerant circuit and prevent an overload operation of compression means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side. The refrigerating apparatus which obtains the supercritical pressure on the high pressure side comprises a refrigerant amount regulation tank connected to the refrigerant circuit on the high pressure side via a communicating circuit; a communicating circuit which connects the upper part of this tank to a medium pressure region of the refrigerant circuit; a communicating circuit which connects the lower part of the tank to the medium pressure region of the refrigerant circuit; an electromotive expansion valve of the communicating circuit; an electromagnetic valve of the communicating circuit; an electromagnetic valve of the communicating circuit; and control means for controlling these valves to collect a refrigerant circulated through the refrigerant circuit in the tank and discharging the refrigerant to the refrigerant circuit.
摘要:
Item values associated with an execution state of a program executed on a computer are collected in detail while suppressing the computer load. When reducing the interval for collecting values of one item to be monitored, the interval for collecting values of items other than that item is increased. If the computer load is increased, an interval of at least one item is increased. Moreover, there is provided an upper limit for the number of items whose intervals can be reduced simultaneously. Moreover, when varying the interval of the item according to the values of the respective items, the interval variation range is varied according to the item state and the computer load.
摘要:
Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system. The management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on already obtained performance information. This permits solving a problem of the computer system that, when the amount of performance information to be obtained is large. A long time is necessary for detecting a performance problem based on the performance information and investigating its causes.
摘要:
Item values associated with an execution state of a program executed on a computer are collected in detail while suppressing the computer load. When reducing the interval for collecting values of one item to be monitored, the interval for collecting values of items other than that item is increased. If the computer load is increased, an interval of at least one item is increased. Moreover, there is provided an upper limit for the number of items whose intervals can be reduced simultaneously. Moreover, when varying the interval of the item according to the values of the respective items, the interval variation range is varied according to the item state and the computer load.