The cost of SELECT * (MongoDB example)

In our previous post Optimizing your AWS Availability-Zone Architecture  we saw how a configuration change saved 60% ($8,000 / month) and reduce latencies from 20ms to 1ms In this post we will show  how a simple change in the code … Continue Reading

Who is accessing your Elastic File System (EFS)?

In this post we review how to understand and visualize who is accessing your EFS, and how to use it for troubleshooting, cost allocation and system design. What is Elastic File System (EFS)? Amazon Elastic File System (Amazon EFS) provides … Continue Reading

Optimizing your AWS Availability-Zone Architecture, Cassandra Example

In a previous post (Availability-Zone Visibility) we explained how to make sure that your application has the right Availability-Zone strategy and prevent down time. We believe that budget is just another resource that goes through engineering trade-offs just like performance, capacity and others … Continue Reading

Get some Availability Zone visibility (before unleashing Chaos Monkey…)

AWS Availability Zones Amazon EC2 is hosted in multiple locations worldwide. These locations are composed of regions and Availability Zones. Each region is a separate geographic area. Each region has multiple, isolated locations known as AZ (Availability Zones). Amazon EC2 … Continue Reading

It’s 5 PM. Do You Know Where Your CPUs Are?

“T2 instances are designed to provide moderate baseline performance and the capability to burst to significantly higher performance as required by your workload. They are intended for workloads that don’t use the full CPU often or consistently, but occasionally need … Continue Reading

Who is accessing your data(base)?

Who is accessing my database ??

Here is a deceptively simple question: who is accessing my database (or data)? Who accessed it in the recent three days? That sounds like something that is reasonable to ask and to get an answer for. However in reality, this … Continue Reading

Using VPC Flow Logs to visualize your network

AWS VPC Flow Logs is a feature that enables you to capture information about the IP traffic going to and from network interfaces in your VPC. Flow log data is is a part of the Amazon CloudWatch Logs. After you’ve … Continue Reading

Monitoring ONTAP Cloud

How to monitor NetApp ONTAP Cloud in AWS What is ONTAP Cloud? ONTAP Cloud, is a leading enterprise storage operating system, to deliver secure, proven NFS, CIFS, and iSCSI data management for EBS storage and tier to S3 storage. A … Continue Reading

How does the AWS S3 outage look like (from the inside)?

Anyone who is a user of AWS S3 in us-east-1 region, felt a little bit on fire yesterday afternoon during the AWS S3 outage. If you happen to be a service provider, it probably felt worse. The reason is that your service … Continue Reading

The rise of DevOps and the fall of “root-cause”

ITculate is a small startup company, and we are building a great product for DevOps teams. As a part of our process we are talking to customers and we recently ran into an interesting question: how relevant is the pre-cloud concept … Continue Reading