5-7
Cisco UCS Invicta Scaling System Administration and Configuration Guide, Version 5.0.1.1a
Chapter 5 Asynchronous Replication
Step 3 Click Windows Installer.
Note This step is to be used if Cygwin packages and services (sshd and cyg_server) are not already installed
on the Windows Partner Host. If the Cygwin packages and services are already installed, skip to Step 4.
The software package is downloaded and executed. If your browser downloads the software but does not
run automatically, click Run to install. The Cygwin packages will be downloaded from the Redhat
website and installed. The services required for Async Replication will be configured and started.
This setup will take several minutes.
Step 4 Click Public Key to obtain the public key necessary for using password-less ssh access.
The SSH Public Key dialog box appears.
Step 5 Copy the ssh key and click OK.
Step 6 Open a Terminal window and navigate to the /home/Administrator/.ssh directory.
Step 7 Enter vi authorized_keys.
Step 8 Paste the Cisco Public Key copied in Step 2 into the authorized_keys list and click Enter.
Step 9 Close session on remote replication site.
Step 10 Return to the Async Replication window to create a pairing (Create a Pairing, page 5-7).
For additional information on how to run ssh-keygen and setup public keys for both Linux and Windows,
see http://rcsg-gsir.imsb-dsgi.nrc-cnrc.gc.ca/documents/internet/node31.html and
http://www.noah.org/ssh/cygwin-sshd.html.
Create a Pairing
Note A LUN must be present before a pairing can be created.
Caution We do not recommended using target entities in Read-Write mode as this poses a risk to the accuracy of
the data replication and may corrupt data recovery.
Once Async Replication pairing is setup, Increase Size and Delete operations are disabled on the Source
LUN used for the pairing.
The Async Replication Pairings window displays a table of LUNs and their host pairings. Information
about and the date and time of the last replication and the last restore is also displayed. From this
window, create new pairings using the top left-hand window button. On mouse hover over each pairing,
the replication schedule, and the source and target device info for that pairing appears in a pop-up box.
On right-click, an options menu appears for the selected pairing for the following:
• Delete
• Verify Partner Host
• Update Partner
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