Easy Tier Server - new paper
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Back in early June, we posted on this blog a short article about the announce of new Easy Tier features , delivered with the IBM DS8870 Release 7.1.
One of those new significant new feature is the Easy Tier Server. We just released a new IBM RedPaper that gives you an insight into the concepts , architecture and implementation of that feature.
Easy Tier Server allows the most frequently accessed or hottest data to be placed (cached) closer to the hosts, thus overcoming the SAN latency. This feature, introduced with the IBM DS8000 DS8870 LMC 7.7.10.xx.xx leverages the integration between AIX hosts and DS8870 by implementing advanced caching coherency algorithms.
The Easy Tier Server core concept lies on DS8870 cooperating with heterogeneous hosts to make a global decision on which data to copy to hosts local SSDs, for improved application response time.
The Easy Tier Server feature has been extensively tested by IBM and the test results have shown that it can improve overall response time up to five times.
In preparing this IBM Redpaper publication, we set up an environment with Easy Tier Server enabled on a DS8870 Storage System and a Power 770 host, attached to an EXP30 Expansion Enclosure with SSD devices.
The tests’ results turned out to demonstrate a very good performance improvement achieved by the application after Easy Tier Server implementation, with an impressive 4 times improvement on the overall response time to the application
To read and learn more about the Easy Tier Server feature , refer to the IBM
You can also read Redpapers about the other new Easy Tier features, respectively: