Abstract: An authoritative domain name system (DNS) server receives DNS requests for domains. The authoritative DNS server transmits DNS responses to the DNS requests with address records that include IP addresses that are selected from a larger pool of IP addresses, where a first DNS response can include IP addresses different from IP addresses included in a second DNS response for the same domain. Also, the same IP addresses may be returned for a first domain and a different, second domain. The authoritative DNS server may select the IP addresses to include in DNS responses to the DNS requests using a round-robin process.

Abstract: A method for replicating data from a plurality of storage systems to a target storage system. The method implemented at the target storage system receives a replication request to replicate data from a source storage system to the target storage system, where the target storage system stores data replicated from the plurality of source storage systems. In response to the replication request, the target storage system identifies a replication resource limit associated with the data to be replicated from the source storage system. The target storage system then determines whether a replication resource requested by the replication request has exceeded the replication resource limit. The target storage system thus allows the replication resource to replicate data from the source storage system, in response to the replication resource not exceeding the replication resource limit.

Abstract: A request is received from a client device of a user for configuring a tenant of a multi-tenant storage system, the multi-tenant storage system storing data for different tenants. An entity identifier (ID) identifying an entity to be associated exclusively with the tenant is obtained from the request. A lookup operation is performed based on the entity in an SMT registry namespace cache stored in a memory to locate an entry that matches the entity. If no matching entry is found, the request is allowed. If a matching entry is found, a first tenant ID obtained from the request is compared with a second tenant ID stored in the matching entry. The request to configure the tenant is allowed if the first tenant ID matches the second tenant ID. The request is denied if the first tenant ID does not match the second tenant ID.

Abstract: A native protection storage operating system (PSOS) process receives a request specifying an operation having security related implications for elements in the PSOS having a first set of components handling data transfer operations and a second set of components handling configuration operations. A security component stores an identifier of the requester and a security related information element locally within a storage location of the first or second set of components, and accesses, upon receiving the request, the security related information element and requester identifier to match other elements of the network impacted by the request, and performs a security condition specific check to determine whether or not the request is to be allowed or denied. The native process eliminates a need for caching, locking, and chain propagation of the security related information through the PSOS.