2017-01-31 11:25 PM
Hi All :
I am install FAS9000, is there any know what's Quad-path used for? Only more safety? Should I cable as Quad-path right now?
I study the document "Installation and Cabling Guide for DS460C, DS224C, and DS212C" but only got cable rules and got no answer to use Quad-path HA cabling.
Solved! SEE THE SOLUTION
2017-02-01 01:03 AM
Hope this helps https://library.netapp.com/ecm/ecm_download_file/ECMLP2485106
2017-02-09 06:20 PM
While quad-path HA provides additional path resiliency, the main purpose for the additional cabling is to double the I/O bandwidth to the SAS3 storage stack.
Configuring the storage stack with quad-path HA and double-wide intrastack connections is optional. All-SSD storage stacks can benefit from the increased bandwidth, especially for
for large block (e.g. 64KB) sequential read streaming workloads.
2017-02-11 12:17 PM
Sure... If you don't want to peruse performance graphs/counters (e.g. via OnCommand Performance Manager) to check the storage utilization percentage or worry about specific workloads, going with Quad-Path cabling for AFF storage is a great rule of thumb. There's just the minor extra costs of using extra HBA ports and cables.