Chapter 22
Storage Virtualization
Virtualization has a similar meaning as abstraction. Storage virtualization disassociates (abstracts) the logical address of the data from the physical controller, RAID, or hard disk device. It’s a highly useful concept when many servers attach to many storage arrays and when data is relocated as data ages or as older hardware is retired.
22.1 Virtualized Storage and Shared Storage for Virtualized Servers
For shared storage, database data (including Oracle, SQL server, MySQL, Sharepoint, Exchange, and many others) is specifically designed to safely allow multiple users to read and write to the same database without stepping on each others’ writes. Write access control for databases, in principle, is easy: ...
Get Data Center Storage now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
