Filesystem failover in a single system image environment
    4.
    发明授权
    Filesystem failover in a single system image environment 失效
    文件系统故障切换在单个系统映像环境中

    公开(公告)号:US06247139B1

    公开(公告)日:2001-06-12

    申请号:US09071145

    申请日:1998-04-30

    IPC分类号: G06F1516

    CPC分类号: G06F17/30067

    摘要: A method and apparatus for transparent failover of a filesystem within a computer cluster is provided. For failover protection, a filesystem is physically connected to an active server node and a standby server node. A cluster file system provides distributed access to the filesystem throughout the computer cluster. The cluster file system monitors the progress of each operation performed on the failover protected filesystem. If the active server node should fail during an operation, all processes performing operations on the failover protected filesystem are caused to sleep. The filesystem is then relocated to the standby server node. The cluster file system then awakens each sleeping process and retries each pending operation.

    摘要翻译: 提供了用于计算机集群内的文件系统的透明故障转移的方法和装置。 对于故障转移保护,文件系统物理连接到活动服务器节点和备用服务器节点。 集群文件系统为整个计算机集群中的文件系统提供分布式访问。 集群文件系统监视在故障转移保护文件系统上执行的每个操作的进度。 如果活动服务器节点在运行期间失败,那么对故障转移保护文件系统执行操作的所有进程都将进入休眠状态。 然后将文件系统重新定位到备用服务器节点。 然后,群集文件系统唤醒每个休眠进程并重试每个待处理的操作。

    Filesystem data integrity in a single system image environment
    5.
    发明授权
    Filesystem data integrity in a single system image environment 失效
    文件系统在单一系统映像环境中的完整性

    公开(公告)号:US6122629A

    公开(公告)日:2000-09-19

    申请号:US70897

    申请日:1998-04-30

    IPC分类号: G06F11/20 G06F17/30

    摘要: A system for protection of filesystem data integrity within a computer cluster is provided. The system uses redundant data caches at client and server nodes within the computer cluster. Caching of filesystem data is controlled so that non-shared files are preferably cached at client nodes. This increases filesystem performance within the computer cluster and ensures that failures may not result in a loss of modified filesystem data without a corresponding loss to the process(es) accessing that data. Shared files are cached at the server node and a backup cache node. This protects modified filesystem data against any single node failure.

    摘要翻译: 提供了一种用于保护计算机集群内的文件系统数据完整性的系统。 系统在计算机集群内的客户端和服务器节点使用冗余数据高速缓存。 控制文件系统数据的缓存,使得非共享文件优选地在客户机节点处被缓存。 这会增加计算机集群内的文件系统性能,并确保失败可能不会导致修改后的文件系统数据丢失,而不会对访问该数据的进程造成相应的损失。 共享文件缓存在服务器节点和备份缓存节点。 这可以保护修改的文件系统数据免受任何单个节点故障的影响。