Mike Preston over at mwpreston.net has published new book on a topic that is one of the most crucial in today's virtualization – a storage performance. The book's name is Troubleshooting vSphere Storage. Performance of storage systems is always quite complex topic. IOPS, Throughput, latency… quite many metrics to follow, tweak and think of.
The way that today's SANs were designed slowly starts to change and we can see that we are heading towards distributed storage systems and distributed architectures, but before we're there we must deal with today's arrays and today's problems!
Storage is where usually rises problems. Latency problems, VM performance, capacity. All this has root cause in storage. Rarely you got a physical CPU problems on not outdated infrastructures.
The book is written for vSphere admins by a vSphere admin and at first goes and introduces the different type of storage that ESXi and vSphere uses – Fibre Channel, iSCSI, or NFS.
You'll learn troubleshoot the connectivity and see what is possible to do when there are performance issues or which tools to use and how. Also, you'll learn about capacity issues when reaching the limit of capacity of your array.
Here is a quick quote:
This is a step-by-step example-oriented tutorial aimed at showing the reader how to troubleshoot a variety of vSphere storage problems, and providing the reader with solutions that can be completed with minimal effort and time in order to limit damage to work.
What you will learn from this book
- Identify the root cause of storage issues within vSphere
- Understand where to look when storage is suddenly not available
- Use esxtop to monitor and discover pain points in your infrastructure
- Diagnose and resolve SCSI reservations and queuing issues
- Design storage properly based on workloads
- Monitor and alert on your thinly provisioned disks and data store capacity
- Utilize Storage DRS to proactively balance your capacity and workload on your data stores
- Maintain compliance in terms of placement with Profile Driven Storage
- Grant VMs the performance they need with Storage I/O Control
- Decipher storage-related error entries in the vSphere logfiles
Availability:
The book is currently available through Amazon and other Online stores.
Enjoy…-:)
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