| 发明名称 | Managing nodes in a storage system | ||
| 摘要 | Each node in a clustered array is the owner of a set of zero logical disks (LDs). Thinly-provisioned VVs (TPVVs) are partitioned so each is mapped to a group of zero LDs from different sets of zero LDs. When there is a change in ownership, the affected zero LDs are switched one at a time so only a group of the TPVVs is affected each time. | ||
| 申请公布号 | US8996783(B2) | 申请公布日期 | 2015.03.31 |
| 申请号 | US201213459240 | 申请日期 | 2012.04.29 |
| 申请人 | Hewlett-Packard Development Company, L.P. | 发明人 | Huang Hueichian;Murthy Srinivasa D;Nazari Siamak;Tamma Roopesh Kumar;Luo Jianding |
| 分类号 | G06F12/00;G06F21/00;G06F3/06 | 主分类号 | G06F12/00 |
| 代理机构 | Patent Law Group LLP | 代理人 | Patent Law Group LLP |
| 主权项 | 1. A method of managing changes in ownership of virtual volume regions between nodes in a storage system, comprising: creating zero logical disk (LD) groups, each zero LD group comprising zero LDs from different sets of zero LDs owned by different nodes, each zero LD having a unique pair of a primary node and a backup node; creating thinly-provisioned virtual volumes (TPVVs) by mapping each TPVV to one zero LD group; and when a change of ownership occurs, switching ownership of affected zero LDs one at a time so host IO is suspended for one group of the TPVVs at a time. | ||
| 地址 | Houston TX US | ||