InfoScale™ 9.0 Storage Foundation and High Availability Solutions HA and DR Solutions Guide for Microsoft SQL Server - Windows
- Section I. Getting started with Storage Foundation and High Availability Solutions for SQL Server
- Introducing SFW HA and the VCS agents for SQL Server
- How is application availability achieved in a VMware virtual environment
- How VCS monitors storage components
- Deployment scenarios for SQL Server
- Reviewing the active-passive HA configuration
- Reviewing a standalone SQL Server configuration
- Reviewing the campus cluster configuration
- Reviewing the Replicated Data Cluster configuration
- About setting up a Replicated Data Cluster configuration
- Disaster recovery configuration
- Reviewing the disaster recovery configuration
- Notes and recommendations for cluster and application configuration
- Configuring disk groups and volumes for SQL Server
- About managing disk groups and volumes
- Configuring the cluster using the Cluster Configuration Wizard
- Installing SQL Server
- Completing configuration steps in SQL Server
- Introducing SFW HA and the VCS agents for SQL Server
- Section II. Configuring SQL Server in a physical environment
- Configuring SQL Server for failover
- About configuring the SQL Server service group
- Configuring the service group in a non-shared storage environment
- Configuring an MSDTC Server service group
- Configuring campus clusters for SQL Server
- Configuring Replicated Data Clusters for SQL Server
- Setting up the Replicated Data Sets (RDS)
- Configuring a RVG service group for replication
- Configuring the resources in the RVG service group for RDC replication
- Configuring the VMDg or VMNSDg resources for the disk groups
- Configuring the RVG Primary resources
- Adding the nodes from the secondary zone to the RDC
- Verifying the RDC configuration
- Configuring disaster recovery for SQL Server
- Setting up your replication environment
- About configuring disaster recovery with the DR wizard
- Configuring replication and global clustering
- Configuring the global cluster option for wide-area failover
- Testing fault readiness by running a fire drill
- About the Fire Drill Wizard
- Prerequisites for a fire drill
- Preparing the fire drill configuration
- Deleting the fire drill configuration
- Configuring SQL Server for failover
Managing storage using VMware virtual disks
Configure the storage disks to save the application data.
VMware virtualization manages the application data by storing it on SAN LUNs (RDM file), or creating virtual disks on a local or networked storage attached to the ESX host using iSCSI, network, or Fibre Channel. The virtual disks reside on a datastore or a raw disk that exists on the storage disks used.
For more information, refer to the VMware documentation.
The application monitoring configuration in a VMware environment requires you to use the RDM or VMDK disk formats. During a failover, these disks can be deported from a system and imported to another system.
Consider the following to manage the storage disks:
Use a networked storage and create virtual disks on the datastores that are accessible to all the ESX servers that hosts the VCS cluster systems.
In case of virtual disks, create non-shared virtual disks (Thick Provision Lazy Zeroed).
Add the virtual disks to the virtual machine on which you want to start the configured application.
Create volumes on the virtual disks.
Note:
If your storage configuration involves NetApp filers that are directly connected to the systems using iSCSI initiator, you cannot configure application monitoring in a virtual environment with non-shared disks.
The VCS agent for SQL Server requires that you create two volumes, one for the SQL Server data and the other for the registry replication information.
If you use SQL Server FILESTREAM, create additional volumes for the FILESTREAM-enabled database objects.
Arctera recommends that you create separate volumes for the following:
INST1_DATA_FILES
Contains the SQL Server system data files (including the master, model, msdb, and tempdb databases).
INST1_REGREP_VOL
Contains the list of registry keys that must be replicated among cluster systems for the SQL Server service. Create a 100 MB (minimum recommended size) volume for this purpose.
INST1_FS_VOL
Contains the FILESTREAM-enabled database objects for the SQL Server database.
INST1_DB1_VOL
Contains the user database files.
INST1_DB1_LOG
Contains the user database log files.
INST1_DB1_FS_VOL
Contains the FILESTREAM-enabled database objects for the user database.
The following VCS storage agents are used to monitor the storage components involving non-shared storage:
If the storage is managed using SFW, the MountV, VMNSDg, and VMwareDisks agents are used.
If the storage is managed using LDM, the Mount, NativeDisks, and VMwareDisks agents are used.
Before configuring the storage, you can review the resource types and attribute definitions of these VCS storage agents. For details refer to the Cluster Server Bundled Agents Reference Guide.