In the fast-paced world of data storage and management, understanding best practices can make a significant difference in efficiency and reliability. Recently, I had the opportunity to sit down with Alex Thornton, a seasoned data storage analyst, to delve into the intricacies of managing the NetApp storage array. Alex shared invaluable insights that are crucial for anyone looking to optimise their storage solutions.
Upgrade to TrueNAS and discover why its the data storage solution for technical leaders.
Our conversation began with a fundamental principle that Alex emphasised: “Do not use the system volume, typically known as vol0, for user data.” This might seem like a basic guideline, but as Alex pointed out, it’s a common mistake that can lead to complications down the line. The system volume is designed to handle administrative tasks and using it for user data can cause unnecessary strain and potential performance issues. “Think of vol0 as the backbone of your storage array. You wouldn’t overload a vital organ; similarly, keep the system volume dedicated to its intended purpose,” Alex explained.
As we discussed various ONTAP versions, Alex highlighted the importance of correctly configuring NAS clients and storage arrays. “For any ONTAP version, always provide the host name or IP address of a data port rather than the management port,” he advised. This practice ensures that your network configuration is optimised for performance and reliability. Alex added, “I’ve seen setups where using the management port led to bottlenecks and security concerns. It’s a simple yet effective change that can save a lot of headaches.”
Our discussion naturally progressed to the topic of backup operations. Alex stressed the significance of using two backup sets for performing snapshots and backup to tape operations in parallel. “This approach maximises efficiency and reduces the risk of data loss,” he said. It was clear from Alex’s insights that strategic planning in backup operations is key to maintaining data integrity.
One common pitfall Alex mentioned was the use of ONTAP 8.1.2 for IntelliSnap backups of NetApp LUNs. “The performance issues with reading from mounted LUNs in this version are well-documented,” he noted. Instead, Alex recommended using a later version, such as 8.1.3, and suggested consulting with NetApp for the best fit for your specific environment. It’s a reminder that keeping software updated is not just about having the latest features but also about avoiding known performance issues.
Snapshot management was another area where Alex provided clear guidance. “Disable the native NetApp schedule for snapshots on volumes managed by Commvault,” he advised. By doing so, you ensure that snapshot retention and storage use align with your defined policies. Alex warned, “Contention problems can arise if multiple snapshot calls occur simultaneously, so adjusting the default settings is crucial.”
Space utilisation is a constant concern in storage management, and Alex had practical advice on this front. “Regularly monitor disk space used by snapshots and ensure sufficient space is available,” he recommended. The space requirement for snapshots can vary significantly, depending on your environment and the number of snapshots created. Alex suggested grouping LUNs according to their rate of change to better manage space utilisation. “It’s all about understanding your data and planning accordingly,” he said.
Finally, we touched on the volume-to-LUN relationship, a topic that can be complex but is essential for effective storage management. Alex explained, “Regardless of the relationship, IntelliSnap offers comprehensive recovery capabilities. However, a 1-to-1 relationship can simplify management.” He also advised ensuring each LUN resides within a Qtree in SnapMirror and SnapVault configurations. “Thin provisioned volumes with LUNs offer flexibility in storage provisioning and snapshot management,” Alex added, underscoring the need for strategic planning in storage architecture.
In conclusion, my conversation with Alex Thornton highlighted that while the technical aspects of managing a NetApp storage array can be intricate, adhering to best practices can lead to significant benefits. From optimising configurations and backups to managing snapshots and space utilisation, each step plays a crucial role in ensuring efficient and reliable storage solutions. For anyone navigating the complexities of data storage, these insights serve as a valuable guide to maximising the potential of their NetApp storage array.
By Koda Siebert