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Configuring Boot from SAN using UCS Manager

Introduction


Configure a boot policy to boot one or more servers from an operating system image on the SAN. The boot policy can include a primary and a secondary SAN boot. If the primary boot fails, the server attempts to boot from the secondary.  If you boot from the SAN when you move a service profile from one server to another, the new server boots from the exact same operating system image.

 

Configuration


UCS Configuration

 

  • Log into UCS manager.  Identify the Chassis containing the blade to be configured.
  • Expand out the Chassis for the server to be configured, all the way to the HBA.
  • Make a note of the WWPN listed for the vHBA.
  • Create a boot policy
  • Provide the Boot policy with a name and description.  Add a local device, CD-ROM, to allow the install of the OS, then add a SAN target.  Add a SAN Boot Target for the Primary and Secondary WWPNs from the storage array.  Then click OK.
  • Create 2 VSANs on UCSM, same 2 VSAN ID’s can be created on MDS also.

 

MDS Configuration

 

  • Add the WWPN addresses to the fcid database.  Do this for addresses from both the UCS blades and the Navisphere.
  • Add an alias for each of the WWPN addresses.
  • Zone each of the created aliases with each of the alias for the Navisphere or Unisphere
  • Add each Zone to the a Zoneset then activate the zoneset
  • Enter command zoneset activate name <abcd> vsan <X>
  • You must run the activate zoneset each time a zone / group of zones is added otherwise the created zones will not become active.

 

Related Information


SAN Zoning Guidelines for Nexus
Configuring and Troubleshooting MDS Enhanced Zoning

Comments
Community Member

Thank you for your posting and please add diagram and print screen for more understating.

If you have detailed document explain step-by-step for Boot from SAN using UCS, please give us the URL Link.

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