How FRS Works: Remote File Systems. When you set up DFS replication, you choose a shared folder whose contents you want to replicate. For the SYSVOL shared folder on domain controllers, replication is established automatically during the domain controller promotion process. The set of data to be replicated to all servers is known as the replica tree, and the servers to receive this replica tree are known as replica members.

The group of replica members that participates in the replication of a given replica tree is known as a replica set. Replica members are connected in a topology, which is a framework of connections between servers and defines the replication path.

• Recovery for SQL Server Data fix software for corrupted Microsoft® SQL Server databases, backups and logs.
• TheINQUIRER publishes daily news, reviews on the latest gadgets and devices, and INQdepth articles for tech buffs and hobbyists.

There are a number of common topologies, such as full mesh, ring, and hub and spoke. The following figure illustrates these terms. Basic FRS Components (Ring Topology)It is also helpful to understand the terminology used to describe the relationship between two members. This terminology is illustrated in the following figure. Replication Partner Terminology. As illustrated in the figure, any two replica members with a direct connection between them are known as direct replication partners. In the figure, Server.

A and Server. B are direct replication partners, as are Server. B and Server. C. Although changes that originate on Server. A are eventually replicated to Server. C, these two servers do not have a direct connection to each other, so they are known as transitive replication partners. When a changed file or folder is received on a server, either because the change originated there or because the server received the file or folder from another partner, that server becomes the upstream partner, also known as inbound partner, for any direct replication partner that has not yet received the change. For example, in the figure titled “Replication Partner Terminology,” a change originates on Server. A, and Server. A is considered the upstream or inbound partner for Server. How To Remove Automatic Updates In Windows 7.

For those who don’t want to run back and forth across the parks to collect paper Fastpass tickets, Disneyland has launched a digital version of the system: Maxpass.

B. Server. B is considered the downstream (also known as outbound) partner for Server. A. The following terms are used to describe the components and processes of FRS. Active Directory object A distinct set of named attributes that represents a network resource.

FRS uses Active Directory objects to represent servers that participate in replica sets and the topology that FRS uses to replicate data. Authoritative restore (also called D4) The process whereby one replica member is made the authoritative member, and all the data in its replica tree is replicated to all other replica members. This procedure should be used only in extreme circumstances under the supervision of your support provider or Microsoft Product Support Services. This process is informally referred to as a “D4” in reference to the registry setting used to invoke this process.

Technology keeps you connected everywhere you go, helps you capture every moment & makes your life a bit easier; stay up-to-date with tips & tricks from eHow. Tabtight professional, free when you need it, VPN service. Gilisoft Secure Disc Creator V6 1 0 With Key Mumbai India there. What version of SQL Server do I have? This unofficial build chart lists all of the known Service Packs (SP), Cumulative Updates (CU), patches, hotfixes and other.

Burflags Short for “backup restore flags,” an FRS- related registry entry used to change the behavior of the FRS service at startup. The values for this registry entry are D2 (for nonauthoritative restores) and D4 (for authoritative restores).

Change order A message that contains information about a file or folder that has changed on a replica member. The change order is sent to the member’s outbound partners. If the outbound partners accept the change, the partners request the associated staging file. After installing the changed file in their individual replica trees, the partners propagate the change order to their outbound partners. Directed change order A change order that is directed to a single outbound partner and primarily produced when the partner is doing a vvjoin, such as during initial synchronization or a nonauthoritative restore (D2). File event time The time at which a change to a file or folder is made. This might not be the same as the file create or last- write time.

For example, restoring a file from a backup tape preserves the file create and last- write times, but the file event time is the time when the actual file restoration was performed. File GUID An identifying property of a file or folder in a replica tree. FRS creates and manages file globally unique identifiers (GUIDs), which, along with the replication version number and event time, are stored in the file ID table in the FRS database. Each file and folder stores its file GUID as part of its NTFS attributes; therefore, corresponding files and folders across all replica set members have the same file GUID. File ID table A table in the FRS database that contains an entry with version and identity information for each file and folder in the replica tree.

File version number A property of a file and folder in a replica tree that is incremented each time the file or folder is updated. The file version number is used to resolve concurrent updates originating from more than one member of the replica set. The version number is only incremented by the member that originated the file update.

Other members that propagate the update do not change the version number. Filter A setting that excludes subfolders (and their contents) or files from replication. FRS debug logs Text files in the \systemroot\Debug folder that store FRS transaction and event detail.

Inbound connection For a given replica member, a component of the NTFRS Member object in Active Directory that identifies inbound partners. An inbound connection exists for each inbound partner. Inbound log A table in the FRS database that stores pending change orders to be processed. As entries are processed, acknowledgments are sent to the inbound partners. Knowledge Consistency Checker (KCC) A built- in process that runs on all domain controllers and generates replication topology for the Active Directory forest.

The KCC creates separate replication topologies depending on whether replication is occurring within a site (intrasite) or between sites (intersite). The KCC also dynamically adjusts the topology to accommodate new domain controllers, domain controllers moved to and from sites, changing costs and schedules, and domain controllers that are temporarily unavailable. Link target In a DFS namespace, the mapping destination of a link, typically a shared folder on a server. FRS can be used to keep link targets (shared folders) synchronized on different servers. Local change order A change order that is created because of a change to a file or folder on the local server. The local server becomes the originator of the change order and constructs a staging file.

MD5 checksum A cryptographically secure one- way hashing algorithm that is used by FRS to verify that a file on each replica member is identical. Morphed folder A folder that FRS creates when resolving a name conflict between two or more identically named directories that originate on different replica members. FRS identifies the conflict during replication, and the receiving member protects the original copy of the folder and renames (morphs) the later inbound copy of the folder. The morphed folder names have a suffix of “. Nonauthoritative restore (also called D2) The process whereby a given replica member is reinitialized by obtaining a replica tree from another replica member. This process is often used to resynchronize a replica member’s replica tree with one of its inbound partners, such as after a server failure.

This process is informally referred to as a “D2” in reference to the registry setting used to invoke this process. Originator GUID A globally unique identifier (GUID) that is associated with each replica member. All change orders produced by a given replica member carry the replica member’s originator GUID, which is saved in the file ID table. Outbound connection For a given replica member, a component of the NTFRS Member object in Active Directory that identifies outbound partners. An outbound connection exists for each outbound partner.

Outbound log A table in the FRS database that stores pending change orders to be sent to outbound partners. The changes can originate locally or come from an inbound partner.