diff --git a/clients/cascades-tucson/session-logs/2026-05-05-howard-chef-pc-slow-and-mdirector-ram.md b/clients/cascades-tucson/session-logs/2026-05-05-howard-chef-pc-slow-and-mdirector-ram.md new file mode 100644 index 0000000..c19643e --- /dev/null +++ b/clients/cascades-tucson/session-logs/2026-05-05-howard-chef-pc-slow-and-mdirector-ram.md @@ -0,0 +1,170 @@ +# Cascades — CHEF-PC Slow Diagnosis + MDIRECTOR-PC RAM Plan + +**Date:** 2026-05-05 +**Client:** Cascades of Tucson (Syncro 20149445) + +## User +- **User:** Howard Enos (howard) +- **Machine:** Howard-Home +- **Role:** tech +- **Session span:** afternoon, single thread + +## Session Summary +Howard inquired about upgrading the RAM on two workstations, MDIRECTOR-PC and CHEF-PC, both Acer Aspire C24-865 AIOs with Intel i5-8250U CPUs. After reviewing documentation and confirming hardware specifications, it was determined that MDIRECTOR-PC required a 2x 4GB DDR4-2400 SODIMM upgrade, while CHEF-PC already had 12 GB and would not benefit from an 8 GB upgrade. Howard then shifted focus to CHEF-PC, which was experiencing performance issues. An audit of the GuruRMM enrollment revealed that CONTEXT.md was outdated, with 30 agents enrolled, not two. CHEF-PC was confirmed enrolled with agent ID `a2cedfea-8239-4cab-bff7-54d99c417ed1`. Remote diagnostics identified storage subsystem saturation due to concurrent agent activity. Five agent stacks were running simultaneously, including Datto RMM, Syncro RMM, GuruRMM, Datto AV, and Infocyte EDR, all contributing to high CPU and storage load. The workstation also had asymmetric RAM and a Patriot P210 SSD with partition and performance issues. + +## Key Decisions +- **RAM upgrade only on MDIRECTOR-PC.** CHEF-PC already had 12 GB, making an 8 GB upgrade a downgrade. +- **Prioritize matched DDR4-2400 SODIMM pair for MDIRECTOR-PC.** Ensures dual-channel performance for the iGPU. +- **Remote diagnostics first, no changes.** Avoided unnecessary onsite work by identifying the root cause of CHEF-PC's slowness through API and PowerShell commands. Per Howard's instruction, no remediation was applied. +- **Keep ScreenConnect, plan removal of other remote tools.** Maintained ACG standard while flagging non-essential tools for removal. +- **Defer SSD replacement.** Postponed until after agent cleanup to avoid premature hardware replacement. + +## Problems Encountered +- **Outdated CONTEXT.md.** Listed only 2 enrolled agents at Cascades; actual count is ~30 (enrolled 2026-04-18). Resolved by cross-referencing the GuruRMM admin API directly. +- **Concurrency of agent stacks.** Five RMM/EDR agents caused storage and WMI subsystem saturation. Identified the stacks and provided a removal sequence for onsite work. +- **Asymmetric RAM configuration.** Split 8 GB + 4 GB modules cause effectively single-channel access for the upper 4 GB band. Documented as secondary issue. +- **Patriot P210 SSD limitations.** Known SLC-cache exhaustion under sustained writes plus partition geometry (only half the disk allocated). Recommended C: partition extension; SSD replacement deferred. +- **`Get-StorageReliabilityCounter` hang during diagnostics.** Cmdlet ran for 75+ s while a parallel trivial PowerShell command round-tripped in 4 s on the same agent. Switched to `Win32_DiskDrive` + `Get-PhysicalDisk` (without reliability counter) to gather hardware data. The hang itself is diagnostic evidence of storage-stack saturation. + +## Configuration Changes +None. Read-only diagnostics only on CHEF-PC. No remediation performed. + +## Credentials & Secrets +- GuruRMM dashboard admin: `admin@azcomputerguru.com` / `GuruRMM2025` — vault `projects/gururmm/dashboard.sops.yaml` +- GuruRMM JWT issued during this session (~24h life): see vault for canonical credential, do not paste tokens to logs + +## Infrastructure & Servers + +### GuruRMM +- API (external): `https://rmm-api.azcomputerguru.com` +- API (internal): `http://172.16.3.30:3001` +- Dashboard: `https://rmm.azcomputerguru.com` +- POST endpoint for remote command execution: `POST /api/agents/{agent_id}/command` with body `{"command":"