Skip to main content

Clustering Solaris with SunCluster 3.2 on VMware ESX 3.x

We have been building and even doing our performance/benchmarks tests on the ESX 3.x and Oracle RAC. And Sun folks too want to demo their cool software on ESX.

However, VMware ESX has a feature called Raw Device Mapping (RDM), which allows the guest operating systems to have direct access to the devices, bypassing the VMware layer. More information on RDM can be found in VMware documentation. The following documents could be starting points:

RDM works with either Fibre Channel or iSCSI only. In the setup here, a SAN storage box connected through Fibre Channel was used for mapping LUNS to the physical hosts. These LUNS could then be mapped onto the VMware guests using RDM. SCSI reservations have been found to be working fine with RDM (both SCSI-2 Reserve/Release and SCSI-3). These RDM devices could therefore be used as shared devices between the cluster nodes. However, of course they can also serve as local devices for a node.

One point to note here is that the virtual SCSI controllers for the guest OSes need to be different for the local and the shared disks. This is a VMware requirement when sharing disks. Also the compatibility mode for RDM, to allow direct access to the storage from the guest, should be “Physical”. For detailed information, please refer to VMware ESX documentation.

Decent article, check it out.


Popular posts from this blog

Get Vyatta Virtual Appliance, now VMware certified!

We all know Vyatta, don't we?

Vyatta, the leader in Linux-based networking, today announced that its open-source networking software has received VMware Virtual Appliance Certification, thereby providing customers with a solution that has been optimized for a production-ready VMware environment. The company also announced it has joined the VMware Technology Alliance Partner (TAP) Program. As a member of TAP, Vyatta will offer its solutions via the TAP program website. With the Vyatta virtual appliance for VMware environments, organizations can now include Vyatta’s router, firewall and VPN functions as part of their virtualized infrastructure.

Vyatta combines enterprise-class routing and security capabilities into an integrated, reliable and commercially supported software solution, delivering twice the performance of proprietary network solutions at half the price. Running Vyatta software as virtual appliances gives customers many more options for scaling their data centers and cons…

3PAR adds native LDAP support to simplify administration

3PAR®, the leading global provider of utility storage, announced today native support for lightweight directory access protocol (LDAP). Support for LDAP enables centralized user authentication and authorization using a standard protocol for managing access to IT resources. With 3PAR’s support for LDAP, customers are able to now integrate 3PAR Utility Storage--a simple, cost-efficient, and massively scalable storage platform—with standard, open enterprise directory services. The result is simplified security administration with centralized access control and identity management.

“3PAR Utility Storage already provides us with a reliable, shared, and easy-to-use consolidated storage platform,” said Burzin Engineer, Vice President of Infrastructure Services at Shopzilla. "Now, with 3PAR support for LDAP, managing security commonly--across all our resources, including storage--is also simple and efficient.”

Press Release

DeepLearningTrucker Part 1