Step-by-step guides for a QNAP NAS

Step-by-step guides for diagnosing a QNAP NAS with StorageDiag Workbench & Utilities. Each one is checked against the Workbench’s code and shown with its real windows and recorded walkthroughs.

RAM test

How to properly test RAM on QNAP servers using MemHound

Quick on QTS, Deep on QuTS hero, the bootable pendrive that runs the whole test by itself, Rescue mode over SSH, and how to read the verdicts.

QTS · QuTS hero4 sections4 Workbench windows7 walkthroughs Read the RAM guide → Volume performance test

Troubleshooting NAS performance: read and write speeds, step by step

Memory first, then the kernel log and Dr. Trace, SMART and the HCL, SMB or iSCSI, DriveTime’s disk scan and Disk Map, the network with NetScope, and an appendix on disks: classes, SMART and SSD cache.

6 steps + appendix8 Workbench windows7 walkthroughs Read the performance guide → VM performance test

Hardware realities, resource limits and deep performance monitoring

What to expect from the hardware, a baseline by isolating services, processes in the D state, vCPUs against threads and oversubscription, the VMs in Pulse and BlackBox, heat, and the KVM CPU model.

7 sections4 Workbench windows1 walkthrough Read the VM guide →