Storage Performance

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Checklist for Storage Performance & Availability

 

When it comes to Storage Performance and Availability, we always try to compare different storage vendors and systems to analyze the parameters.

Here I have tried to list down all the common parameters which are applicable to all storage vendors and can be used as a general baseline for understanding and troubleshooting the performance related issues.

  1. Availability – is related the hardware components of the storage system and to avoid single point to failure.

 

  1. Bandwidth – is the measurement of amount of data that can be transferred along a channel per second. Some storage systems may have multiple ports and we need to identify if they are configured as active/standby or load balance.

 

  1. Response Time – the time taken for a request of service and the completion of request.

 

  1. RPO – Recovery Point Objective (RPO) is the amount of data at risk or data loss an organization can afford in event of Disaster / Failure.

 

  1. RTO – Recovery Time Objective (RTO) is the time required to bring an application or service back online state after a Disaster / Failure.

 

  1. I/O Characteristics – it is depended on the type of workload or application framework such as OLTP, Email, File serving, Backup to Disk or Rich Media

 

  1. Knowing the workload – to implement best practice to achieve maximum performance from your storage system, it is important to understand the workloads that are going to store data on the storage. This requires a basic knowledge of the host applications.

 

  1. Throughput – Also known as IOPS. This is the number of I/O operations that are processed per second. It can be divided into Read IOPS, Write IOPS & Total IOPS