Avago Technologies Syncro 9361-8i - Manual (Page 70)

Avago Technologies
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Syncro CS 9361-8i and Syncro CS 9380-8e Solution User Guide 
October 2014
Chapter 4: Troubleshooting
Verifying HA-DAS Support in Tools and the OS Driver
Chapter 4: Troubleshooting
This chapter has information about troubleshooting a Syncro CS system.
4.1 Verifying HA-DAS Support in Tools and the OS Driver
Not all versions of MegaRAID Storage Manager (MSM) support HA-DAS. The MSM versions that include support for
HA-DAS have specific references to clustering. It is not always possible to determine the level of support from the
MSM version number. Instead, look for the MSM user interface features that indicate clustering support. If the second
item in the MSM Properties box on the dashboard for the HA-DAS controller is High Availability Cluster status, the
version supports HA-DAS. This entry does not appear on versions of MSM without HA-DAS support.
You can also verify HA-DAS support in the MSM Create Virtual Drive wizard. A Provide Shared Access check box
appears only if the MSM version supports clustering, as shown in the following figure.
Figure 51 Provide Shared Access Property
Versions of MSM that support HA-DAS also require an HA-DAS-capable OS driver to present HA-DAS features. The
in-box driver for Windows Server 2012, RHEL 6.4, and SLES 11 SP3 do not present HA-DAS features in MSM.
To determine if your version of StorCLI supports HA-DAS, enter this help command:
Storcli /c0 add vd ?
If the help text that is returned includes information about the Host Access Policy: Exclusive to peer
Controller / Exclusive / Shared
parameter, your version of StorCLI supports HA-DAS.