Dell EqualLogic PS6210S EqualLogic Auto-Snapshot Manager/Microsoft Edition Ver - Page 64

Run Checksum Verification and Soft Recovery on a Remote Host

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Table 21. Right-Click Options for the Global Verification Schedule Option Description Run Now Ignores the scheduled start time and launches the Global Verification task immediately. Modify the schedule Displays the Create or Modify Global Verification Task dialog box. Delete the Schedule Deletes the Global Verification schedule. No scheduled verification is performed until you create a new schedule manually or specify scheduled verification for a newly created Smart Copy. The Global Verification times remain as specified in the last schedule that you created. Disable Schedule Disables the Global Verification schedule. When scheduled, the Global Verification task runs as a process named EqlExVerifier.exe, which you can view by using the Windows Task Manager. Only one instance of the EqlExVerifier.exe process runs as the automated Global Verification task on a computer at any time. You can launch two more instances of EqlExVerifier.exe manually, or three instances if the automated Global Verification task is not currently running. Run Checksum Verification and Soft Recovery on a Remote Host To make the best use of computer resources, you can configure a computer to run only the Global Verification task, taking the Checksum Verification and Soft Recovery workload off your production computers. You specify a Global Verification window that is specific to the verification server. This window is typically a much longer time period than for a creator server, because the creator server is in the production environment. Using a dedicated verification server enables you to process a greater number of Smart Copies, improving your recovery options and service level. The verification server might be co-located with Smart Copy creator servers, or it might be at a geographically remote location. However, the verification server requires access to the SAN on which you create and maintain Smart Copies. Remote Host verification requires two hosts with the same installed versions of ASM/ME and Exchange management tools. A shared network folder or drive to provide a Smart Copy repository must also be set up. One host functions as the creator server creating Smart Copies. The second computer acts as the verification server running a Global Verification task that verifies all unverified Exchange Smart Copies. The Global Verification window can differ between the local and remote servers. For example, you might configure verification during an off-peak Global Verification window on the creator server, such as the default 8 p.m. to 6 a.m. window. You might then configure the creator server to run verification on the remote computer, setting the verification server's Global Verification window to 24 hours. You can run remote verification operations manually, you can schedule them individually, or you can schedule them as part of a Global Verification task. Remote Host Checksum Verification and Soft Recovery in a HIT Group If you want to run Checksum Verification and Soft Recovery on a remote host and your configuration consists of a HIT Group with two or more hosts, Dell recommends the following: • If your HIT Group is a DAG, then each node has a unique backup document directory. As a result, each node requires a remote host for Checksum Verification and Soft Recovery. • The cluster node and its remote host share the same backup document directory. For example, if your HIT Group comprises a 4-node DAG, then you must allocate four separate hosts for remote host Checksum Verification and Soft Recovery (1 host per node). NOTE: This allocation is used only once when verification is set to complete simultaneously on all four hosts. Prerequisites for Configuring a Verification Server • Install the same release of Host Integration Tools on both the verification server and on the Smart Copy creator servers. • Install the Exchange management tools for the same release of Exchange Server as is installed on the Smart Copy creator servers. • Maintain version parity on creator and verification servers, including the latest available Microsoft hotfixes. • Ensure that: 64 Using ASM/ME with Exchange

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Table 21. Right-Click Options for the Global Verification Schedule
Option
Description
Run Now
Ignores the scheduled start time and launches the Global Verification task immediately.
Modify the schedule
Displays the
Create or Modify Global Verification Task
dialog box.
Delete the Schedule
Deletes the Global Verification schedule. No scheduled verification is performed until
you create a new schedule manually or specify scheduled verification for a newly
created Smart Copy. The Global Verification times remain as specified in the last
schedule that you created.
Disable Schedule
Disables the Global Verification schedule.
When scheduled, the Global Verification task runs as a process named
EqlExVerifier.exe
, which you can view by using the
Windows Task Manager. Only one instance of the
EqlExVerifier.exe
process runs as the automated Global Verification task on a
computer at any time.
You can launch two more instances of
EqlExVerifier.exe
manually, or three instances if the automated Global Verification task is
not currently running.
Run Checksum Verification and Soft Recovery on a
Remote Host
To make the best use of computer resources, you can configure a computer to run only the Global Verification task, taking the Checksum
Verification and Soft Recovery workload off your production computers. You specify a Global Verification window that is specific to the
verification server. This window is typically a much longer time period than for a creator server, because the creator server is in the
production environment.
Using a dedicated verification server enables you to process a greater number of Smart Copies, improving your recovery options and
service level. The verification server might be co-located with Smart Copy creator servers, or it might be at a geographically remote
location. However, the verification server requires access to the SAN on which you create and maintain Smart Copies.
Remote Host verification requires two hosts with the same installed versions of ASM/ME and Exchange management tools. A shared
network folder or drive to provide a Smart Copy repository must also be set up. One host functions as the creator server creating Smart
Copies. The second computer acts as the verification server running a Global Verification task that verifies all unverified Exchange Smart
Copies.
The Global Verification window can differ between the local and remote servers. For example, you might configure verification during an
off-peak Global Verification window on the creator server, such as the default 8 p.m. to 6 a.m. window. You might then configure the
creator server to run verification on the remote computer, setting the verification server’s Global Verification window to 24 hours.
You can run remote verification operations manually, you can schedule them individually, or you can schedule them as part of a Global
Verification task.
Remote Host Checksum Verification and Soft Recovery in a HIT
Group
If you want to run Checksum Verification and Soft Recovery on a remote host and your configuration consists of a HIT Group with two or
more hosts, Dell recommends the following:
•
If your HIT Group is a DAG, then each node has a unique backup document directory. As a result, each node requires a remote host for
Checksum Verification and Soft Recovery.
•
The cluster node and its remote host share the same backup document directory. For example, if your HIT Group comprises a 4-node
DAG, then you must allocate four separate hosts for remote host Checksum Verification and Soft Recovery (1 host per node).
NOTE:
This allocation is used only once when verification is set to complete simultaneously on all four hosts.
Prerequisites for Configuring a Verification Server
•
Install the same release of Host Integration Tools on both the verification server and on the Smart Copy creator servers.
•
Install the Exchange management tools for the same release of Exchange Server as is installed on the Smart Copy creator servers.
•
Maintain version parity on creator and verification servers, including the latest available Microsoft hotfixes.
•
Ensure that:
64
Using ASM/ME with Exchange