Posts Tagged ‘storage array’
EMC FAST-cache and “Follow the I/O”
March 28th, 2012 | 
Author: I do not often write to specific implementations of a vendor. This time however I focus on EMC’s FAST-cache technology, and we will be playing a little “follow the I/O” to see what it actually does, where it helps and where it might not.
Posted in Storage, VDI and VMware View | 
Tags: accelerate, accelerating, array, Cache, DRAM, DRAM cache, EMC, FAST-cache, san, speed up, SSD, Storage, storage array | 
1 Comment »
Speeding up your storage array by limiting maximum blocksize
Recently I got an email from a dear ex-colleague of mine Simon Huizenga with a question: “would this help speed up our homelab environment?”. Since his homelab setup is very similar to mine, he pointed me towards an interesting VMware KB article: “Tuning ESX/ESXi for better storage performance by modifying the maximum I/O block size” (KB:1003469). What this article basically describes, is that some arrays may experience a performance impact when very large storage I/O’s are performed, and how limiting the maximum sizes of I/O blocks might improve performance in specific cases.
Posted in Storage, VMware |
Tags: 1003469, ESX, ESXi, KB 1003469, limiting blocksizes, san, speeding up, storage array, VMware, vSphere |
1 Comment »
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