Performance Tuning: Revision history

3 September 2026

• curprev 08:3008:30, 3 September 2026‎ Qadmin talk contribs‎ m 55,496 bytes −1,647‎ Deduplicate against the rewritten Performance Monitoring page (QSTOR-12352, guideline 14): replace the Storage System dashboard, Cache Stats and per-disk/grid subsections with a pointer that keeps only the three reading rules that matter when tuning - check the time range because windows over six hours are averaged, Cache Efficiency is a since-boot average not a current hit rate, and network throughput sits beside CPU. qs-iostat and the direct disk/pool testing sections are unchanged. Drops t...
• curprev 05:3805:38, 3 September 2026‎ Qadmin talk contribs‎ m 57,143 bytes −1,102‎ Point to the new Performance Testing page for measurement and layer isolation, and hand the Disk Performance Test dialog's field detail to its owning pages instead of repeating it. Tunables, I/O profiles, ARC/L2ARC/SLOG and record-size guidance unchanged. (QSTOR-12352)
• curprev 05:1405:14, 3 September 2026‎ Qadmin talk contribs‎ m 58,245 bytes +132‎ Tighten the I/O profile re-application claim to the verified set of triggers (QSTOR-12352)
• curprev 05:0905:09, 3 September 2026‎ Qadmin talk contribs‎ m 58,113 bytes +34,360‎ Rewrite from the product: performance model and tuning workflow. Corrects the I/O profile reference (real keys are hdd_/ssd_/nvme_ prefixed, path is /opt/osnexus/quantastor/conf/qs_io_profiles.conf, nr_requests is 256 with a hardware-queue multiplier not 2048, there is no default-ssd profile); documents all 7 shipped profiles, Storage Volume I/O profiles, ARC/L2ARC/SLOG/metadata offload reasoning, record size and volume block size, compression as a throughput decision, and measurement via the...

17 April 2023

• curprev 18:5018:50, 17 April 2023‎ Qadmin talk contribs‎ m 23,753 bytes −256‎ No edit summary

14 May 2020

• curprev 16:1116:11, 14 May 2020‎ Qadmin talk contribs‎ m 24,009 bytes 0‎ →‎ZFS Performance Tuning

2 May 2019

• curprev 16:3216:32, 2 May 2019‎ Qadmin talk contribs‎ m 24,009 bytes +5‎ →‎Storage Pool IO Tuning Overview
• curprev 16:2416:24, 2 May 2019‎ Qadmin talk contribs‎ m 24,004 bytes −15‎ →‎Storage Pool IO Tuning Overview

17 April 2019

• curprev 14:2214:22, 17 April 2019‎ Qadmin talk contribs‎ m 24,019 bytes −9‎ No edit summary

21 March 2019

• curprev 17:4917:49, 21 March 2019‎ Qadmin talk contribs‎ m 24,028 bytes +18,024‎ No edit summary
• curprev 02:1202:12, 21 March 2019‎ Qadmin talk contribs‎ m 6,004 bytes +9‎ No edit summary
• curprev 02:1102:11, 21 March 2019‎ Qadmin talk contribs‎ 5,995 bytes +5,995‎ Created page with "== IO Tuning == === ZFS Performance Tuning === One of the most common tuning tasks that is done for ZFS is to set the size of the ARC cache. If your system has less than 10..."