The statvlun command in the HPE Alletra 9000 CLI is used to display real-time statistics on exported volumes, including the roundtrip time (RTT) of an I/O as seen by the system. This command provides detailed insights into the performance of the volumes, helping administrators monitor and optimize the storage system's performance in real-time.
Reference:
HPE Alletra 9000 CLI Commands
HPE Storage Performance Monitoring

Given the shift to a read-intensive workload, adding a tier of SSD (Solid State Drives) will significantly improve the read I/O performance of the environment. Implementing thin provisioned virtual volumes allows the storage to be allocated more efficiently, optimizing the use of available SSD resources. This combination ensures that the customer can meet the new performance demands without overspending, making it the best option for a budget-restricted scenario.
References:
* HPE 3PAR StoreServ 8000 Series
* HPE Thin Provisioning

To verify achieved savings from deduplication and compression in an HPE Primera solution, the most suitable tool is NinjaSTARS. NinjaSTARS is part of the HPE NinjaTools suite, which is specifically designed to analyze storage efficiency metrics, including deduplication and compression ratios. This tool provides detailed insights into how much space has been saved through these data reduction technologies, helping to ensure that the solution is meeting expectations for storage efficiency.
References:
* HPE NinjaTools Overview
* HPE Primera Deduplication and Compression

Explanation: