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Provision the storage using Storage Spaces by following Steps 1-3 provided in the Deploy Storage Spaces on a Stand-Alone Server using Windows PowerShell or Server Manager.Įnsure that each set of paired server nodes can see that site's storage enclosures only (i.e. asymmetric storage) and that the SAS connections are correctly configured. The File Server role is only necessary for Test-SRTopology to operate, as it opens the necessary firewall ports for testing.Įnsure that each set of paired server nodes can see that site's storage enclosures only (i.e.The volumes must be formatted with NTFS or ReFS.The log volume must be at least 9GB by default and can to be larger or smaller based on log requirements.The data disks can use HDD, SSD, or a tiered combination and can use either mirrored or parity spaces or RAID 1 or 10, or RAID 5 or RAID 50.Log volumes must never be used for other workloads. Microsoft recommends that the log storage be as faster than the data storage. The log volumes should use flash-based storage and high performance resiliency settings.All log disks must have the same sector sizes.All replicated data disks must have the same sector sizes.The two log volumes should be of identical size.The two data volumes must be of identical size.Log and data disks must be initialized as GPT, not MBR.You must create two volumes on each enclosure: one for data and one for logs.Install Windows Server on all server nodes, using either the Server Core or Server with Desktop Experience installation options. Provision operating system, features, roles, storage, and network More information is included in the following steps. There is no need to configure Storage Replica to use this tool, only to install the cmdlet. You get access to this tool if you install Storage Replica or the Storage Replica Management Tools features on at least one server. Many of these requirements can be determined by using the Test-SRTopology cmdlet. In Azure, the disks must be a Premium SSD size that supports sharing, even if only one VM is to be attached to it. Local disks or disks presented by a hypervisor might not be compatible. Therefore, the storage must still be a Shared Storage type such as a SAN technology. While it is possible to attach a storage device to a single server and use this for replication, Windows Failover Clustering still relies on SCSI Persistent Reservations. The replicated storage cannot be located on the drive containing the Windows operating system folder. Asynchronous replication does not have a latency recommendation. A network between servers with enough bandwidth to contain your IO write workload and an average of =5ms round trip latency, for synchronous replication.Appropriate firewall and router rules to allow ICMP, SMB (port 445, plus 5445 for SMB Direct) and WS-MAN (port 5985) bi-directional traffic between all nodes.You will need more memory and cores for more virtual machines. At least 2GB of RAM and two cores per server.
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