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While the previous two posts in this DevOps series have been open-ended and applicable to people on both the development and operations side, this post is focused on operations personnel. After all, if you're a developer and asking if you need to learn to code, then you might not be in the right job. I've recently had the…
There's been a long-standing "discussion" in the world of storage regarding snapshots and backups. Some people say that snapshots can replace backups, while others say that just can't be true. I side with the latter, but the latest industry developments are making me reconsider that stance. What's a Backup? A backup isn't…
Flash storage can be really, really fast. Crazy fast. So fast that some have openly asked if they really need to worry about storage performance anymore. After all, once you can throw a million IOPS at the problem, your bottleneck has moved somewhere else! So do you really need to worry about storage performance once you…
Many of my blog posts and live talks focus on the changing nature of storage. Traditional storage architectures are giving way to dispersed arrays and even software-defined storage. And traditional storage arrays are giving way to things that don't really look like storage arrays at all. But what does this mean for the…
In my time at Tech Field Day, I've heard a lot of discussion about monitoring products. Sometimes these talks get contentious, with folks pointing out that a certain feature is "useless" while another (usually missing) one is absolutely critical for a product to be taken seriously. Then one day it clicked: Monitoring isn't…
In a previous post I discussed the importance both of IOPS in scaling a system that supports a high volume online transaction processing (OLTP) workload; and that accurately monitoring storage arrays in real-time is key to maintaining OLTP performance. This post strictly focuses on the Network File System (NFS) as an…
Storage Manager lists the ports required to monitor and maintain your storage environment. Checking port availability before using Storage Manager can help save time and aggravation. Checking if required ports are available The example below shows how to investigate availability for port 162. 1. Open administrators command…
Throughout previous blog posts, I talked about thin provisioning, approaches to move from fat to thin, and the practice of over committing. All what I communicated was about their system, advantages, pluses & minuses, methodology, drawbacks etc. Likewise, I also talked about the need for constant monitoring of your storage…
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