Redundancy in enterprise storage networks using dual-domain SAS ...
Redundancy in enterprise storage networks using dual-domain SAS ...
Redundancy in enterprise storage networks using dual-domain SAS ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Examples of redundant architectures us<strong>in</strong>g serial <strong>storage</strong><br />
This section illustrates some of the redundant <strong>storage</strong> scenarios made possible by serial <strong>storage</strong>,<br />
Smart Array, and cluster comput<strong>in</strong>g technologies.<br />
Dual-doma<strong>in</strong> <strong>SAS</strong><br />
This <strong>dual</strong>-doma<strong>in</strong> <strong>SAS</strong> architecture provides redundant pathways for cascaded JBODs. Us<strong>in</strong>g two IO<br />
modules for each enclosure and <strong>SAS</strong> <strong>dual</strong>-port drives, this configuration provides redundancy<br />
throughout the <strong>storage</strong> network and elim<strong>in</strong>ates any s<strong>in</strong>gle po<strong>in</strong>t of failure.<br />
Figure 3. Dual-doma<strong>in</strong> <strong>SAS</strong> for cascaded JBODS<br />
4<br />
IO Module<br />
Expander<br />
IO Module<br />
Expander<br />
<strong>SAS</strong> drive<br />
<strong>SAS</strong> drive<br />
<strong>SAS</strong> drive<br />
JBOD<br />
Server<br />
Controller<br />
IO Module<br />
Expander<br />
IO Module<br />
Expander<br />
<strong>SAS</strong> drive<br />
<strong>SAS</strong> drive<br />
<strong>SAS</strong> drive<br />
JBOD<br />
4<br />
IO Module<br />
Expander<br />
IO Module<br />
Expander<br />
<strong>SAS</strong> drive<br />
<strong>SAS</strong> drive<br />
<strong>SAS</strong> drive<br />
JBOD<br />
5
Change language