摘要:
A method for enabling a server configured with a plurality of virtual servers to participate in a plurality of private network address spaces and service requests within those address spaces is disclosed. Each virtual server is associated with an IPspace. Each network interface is tagged with an IPspace identifier (ID). Each virtual server is provided with one or more routing tables that control routing operations for requests processed by the virtual server. The IPspace ID is applied to translation procedures that enable selection of a virtual server to process an incoming request, and an appropriate routing table used to process an outgoing request.
摘要:
A method for enabling a server configured with a plurality of virtual servers to participate in a plurality of private network address spaces and service requests within those address spaces is disclosed. Each virtual server is associated with an IPspace. Each network interface is tagged with an IPspace identifier (ID). Each virtual server is provided with one or more routing tables that control routing operations for requests processed by the virtual server. The IPspace ID is applied to translation procedures that enable selection of a virtual server to process an incoming request, and an appropriate routing table used to process an outgoing request.
摘要:
A technique enables a server, such as a filer, configured with a plurality of virtual servers, such as virtual filers (vfilers), to participate in a plurality of private network address spaces having potentially overlapping network addresses. The technique also enables selection of an appropriate vfiler to service requests within a private address space in a manner that is secure and distinct from other private address spaces supported by the filer. An IPspace refers to each distinct address space in which the filer and its storage operating system participate. An IPspace identifier is applied to translation procedures that enable the selection of a correct vfiler for processing an incoming request and an appropriate routing table for processing an outgoing request.
摘要:
An architecture provides the ability to create and maintain multiple instances of virtual servers, such as virtual filers (vfilers), within a server, such as a filer. A vfiler is a logical partitioning of network and storage resources of the filer platform to establish an instance of a multi-protocol server. Each vfiler is allocated a subset of dedicated units of storage resources, such as volumes or logical sub-volumes (qtrees), and one or more network address resources. Each vfiler is also allowed shared access to a file system resource of a storage operating system. To ensure controlled access to the allocated and shared resources, each vfiler is further assigned its own security domain for each access protocol. A vfiler boundary check is performed by the file system to verify that a current vfiler is allowed to access certain storage resources for a requested file stored on the filer platform.
摘要:
A technique efficiently creates and serves a backup data set on a backup filer located at a remote site from a primary filer by essentially moving an entire operating environment of a primary data set to the backup filer. The primary filer is organized into one or more virtual filers (vfilers), one of which (the primary vfiler) is configured to serve data, such as the primary data set, for a client. In the event that the primary filer or primary vfiler becomes unavailable, the technique may be implemented as a disaster recovery or data migration sequence to enable efficient instantiation of a backup vfiler to serve the backup data set for the client.
摘要:
A method for operating a server first assigns a plurality of storage volumes to one or more storage devices. A plurality of sub-volumes is established within a namespace of each of the plurality of storage volumes. An instance of a virtual server is created, the virtual server having a plurality of assigned sub-volumes, the assigned sub-volumes chosen from different storage volumes of the plurality of storage volumes. A file system function is shared between the server and the instance of the virtual server, the file system function using at least one of the plurality of assigned sub-volumes.
摘要:
A system and method enables gradual transitioning of a server, such as a filer, to a new security domain and/or IP address scheme. A single physical platform may comprise multiple logical servers, such as virtual filers (vfilers), that simultaneously participate in different security domains and IP address schemes. Each logical server is allocated its own set of storage resources, such as volumes and qtrees, and network resources, such as network addresses. Additionally, a common set of storage resources may store a data set that is accessible to logical servers that participate in the different security domains and/or IP address schemes. Therefore, the server can transition from an old security domain to a new, e.g., upgraded, security domain, by gradually phasing out file access requests sent to a logical server in the old domain and redirecting those requests to a logical server in the new security domain. Similarly, the server can transition from an old IP address scheme to a new IP address scheme by gradually redirecting file access requests from one logical server to another. Since the invention enables multiple logical servers to access the server's data set, clients do not experience any downtime in service during the server's transition to a new security domain and/or IP address scheme.
摘要:
A method for operating a server first assigns a plurality of storage volumes to one or more storage devices. A plurality of sub-volumes is established within a namespace of each of the plurality of storage volumes. An instance of a virtual server is created, the virtual server having a plurality of assigned sub-volumes, the assigned sub-volumes chosen from different storage volumes of the plurality of storage volumes. A file system function is shared between the server and the instance of the virtual server, the file system function using at least one of the plurality of assigned sub-volumes.
摘要:
An architecture provides the ability to create and maintain multiple instances of virtual servers, such as virtual filers (vfilers), within a server, such as a filer. A vfiler is a logical partitioning of network and storage resources of the filer platform to establish an instance of a multi-protocol server. Each vfiler is allocated a subset of dedicated units of storage resources, such as volumes or logical sub-volumes (qtrees), and one or more network address resources. Each vfiler is also allowed shared access to a file system resource of a storage operating system. To ensure controlled access to the allocated and shared resources, each vfiler is further assigned its own security domain for each access protocol. A vfiler boundary check is performed by the file system to verify that a current vfiler is allowed to access certain storage resources for a requested file stored on the filer platform.
摘要:
A technique efficiently creates and serves a backup data set on a backup filer located at a remote site from a primary filer by essentially moving an entire operating environment of a primary data set to the backup filer. The primary filer is organized into one or more virtual filers (vfilers), one of which (the primary vfiler) is configured to serve data, such as the primary data set, for a client. In the event that the primary filer or primary vfiler becomes unavailable, the technique may be implemented as a disaster recovery or data migration sequence to enable efficient instantiation of a backup vfiler to serve the backup data set for the client.