Clogged Device Drain? Use Your Data Snake!

Lee

By Lee LaFresePlunger

Have you ever run into high I/O response times that simply defy explanation? You can’t find anything wrong with your storage to explain why performance is degraded. It could be a classic “slow drain device” condition. Unfortunately, you can’t just call the data plumbers to clean it out! What is a storage handyman to do?

Continue reading

Noisy Neighbors: Finding Root Cause of Performance Issues in IBM SVC Environments

By Jim SedgwickNoisy Neighbors

At some point or another, we have probably all experienced noisy neighbors, either at home, at work, or at school. There are just some people who don’t seem to understand the negative effect their loudness has on everyone around them.

Our storage environments also have these “noisy neighbors” whose presence or actions disrupt the performance of the rest of the storage environment. In this case, we’re going to take a look at an SVC all flash storage pool called EP-FLASH_3. Just a few bad LUNs have a profound effect on the I/O experience of the entire IBM Spectrum Virtualize (SVC) environment.

Continue reading

How to Prevent an “Epic” EMR System Outage

By Curtis RyanElectronic Medical Records

Protecting the availability of your IT storage is vital for performance, but it can also be critical for life. No one knows this better than the infrastructure department of major healthcare providers. Application slowdowns or outages in Electronic Medical Record (EMR), Systems or Electronic Health Record (EHR) Systems – such as Epic, Meditech, or Cerner – can risk patient care, open hospitals up for lawsuits, and cost hundreds of thousands of dollars.

Nobody working in IT Storage in any industry wants to get a call about a Storage or SAN service outage, but even minor service disruptions can halt business operations until the root cause of the issue can be diagnosed and resolved. This kind of time cannot always be spared in the ‘life and death’ environment of the users of EMR systems in healthcare providers.

Continue reading

Which Workloads Should I Migrate to the Cloud?

Brett

By Brett AllisonCloud Storage

By now, we have just about all heard it from our bosses, “Alright folks we need to evaluate our workloads and determine which ones are a good fit for the cloud.” After feeling a tightening in your chest, you remember to breathe and ask yourself, “How the heck do I accomplish this task as I know very little about the cloud and to be honest it seems crazy to move data to the cloud!”

According to this TechTarget article, “A public cloud is one based on the standard cloud computing model, in which a service provider makes resources, such as applications and storage, available to the general public over the internet. Public cloud services may be free or offered on a pay-per-usage model.” Most organizations have private clouds, and some have moved workloads into public clouds. For the purpose of this conversation, I will focus on the public cloud. Continue reading

“State in Doubt”

Brett By Brett Allison

 

One of our customers recently came across a problem in their environment that I think warrants some attention. SANvideox'sThe VMWare administrator had gone to the storage team and asked if they saw any issues on the Fabric or IBM SVC storage environment because the infamous “state in doubt” message was popping up in the /var/log/vmkernel log file messages were similar to what is shown below: Continue reading