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Both InnoDB and PostgreSQL - as well as many other databases - use a technique called multi-version concurrency control (MVCC) to provide transaction isolation: transactions should not see the work of other, uncommitted transactions. MVCC means that, when a row is updated, the database stores both the old and new versions of the row.

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Showing posts with label virtualization. Show all posts
Showing posts with label virtualization. Show all posts

Saturday, August 18, 2012

Citrix XenServer – iSCSI LUN



Hi all, here is my new Mini-Howto for Citrix XenServer – Storage Repository Over Software iSCSI LUN



Topic contains:
How to Create NFS and iSCSI LUN on Linux (I will CentOS)
How to mount them on Citrix Xen Server using Command line and GUI (that includes Screen Shots)

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Thursday, October 14, 2010

What is IaaS or Private Cloud ?



What is IaaS or Private Cloud? And why Enterprise should consider it?

The shortest definition could be. ‘Virtualization on top of an HPC’. Let’s define it like this. What do you think is the biggest limitation to virtualization?

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