| 发明名称 |
Maximizing use of storage in a data replication environment |
| 摘要 |
Mechanisms for controlling access to storage volumes on the secondary storage system is provided. A determination is made as to whether a first site computing device has sent a notification of a failure condition of a first site. In response to a determination that the notification of the failure condition of the first site has not been received, secondary workloads of a second site computing device are permitted to access storage volumes on the secondary storage system. In response to a determination that the notification of the failure condition of the first site has been received, a mode of operation of the second site is modified from a normal mode of operation to a failure mode of operation. In the failure mode of operation, the storage system controller of the second site blocks at least a portion of access requests from secondary workloads of the second site computing device. |
| 申请公布号 |
US8918672(B2) |
申请公布日期 |
2014.12.23 |
| 申请号 |
US201213484789 |
申请日期 |
2012.05.31 |
| 申请人 |
International Business Machines Corporation |
发明人 |
Chen Chiahong;Elliott John C.;Sherman William G. |
| 分类号 |
G06F11/00 |
主分类号 |
G06F11/00 |
| 代理机构 |
|
代理人 |
Tkacs Stephen R.;Walder, Jr. Stephen J.;Bluestone Randall J. |
| 主权项 |
1. A computer program product comprising a non-transitory computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a storage system controller associated with a second site in a replication pair comprising a first site and the second site, causes the storage system controller to:
determine whether a first site computing device has sent a notification of a failure condition of a first site; in response to a determination that the notification of the failure condition of the first site has not been received, permitting local workloads of a second site computing device to access storage volumes on the secondary storage system; and in response to a determination that the notification of the failure condition of the first site has been received, modifying a mode of operation of the second site from a normal mode of operation to a failure mode of operation, wherein in the failure mode of operation, the storage system controller blocks at least a portion of requests from local workloads of the second site computing device to the secondary storage system. |
| 地址 |
Armonk NY US |
