chore: consolidate local WIP (repo cleanup 20260707)

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/ceph/PERC_CONTROLLER_CHECK.md

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+# Checking PERC Controller for 250GB Drives
+
+**Date**: 2025-12-13  
+**Issue**: 6x 250GB drives not visible to OS, need to check PERC controller
+
+---
+
+## Current Status
+
+- **OS Detected**: Only 2x 300GB drives (sda, sdb)
+- **Expected**: 6x 250GB drives should be visible
+- **Likely Cause**: Drives not configured in PERC controller or in RAID array
+
+---
+
+## Check PERC Controller
+
+### Option 1: Install Dell OpenManage Tools
+
+```bash
+# Install Dell OpenManage Server Administrator
+apt-get update
+apt-get install -y srvadmin-all
+
+# Start services
+systemctl start dsm_sa_datamgrd
+systemctl start dsm_sa_snmpd
+systemctl start dsm_sa_eventmgrd
+
+# Check physical disks
+omreport storage pdisk controller=0
+
+# Check virtual disks (RAID arrays)
+omreport storage vdisk controller=0
+```
+
+### Option 2: Use PERC CLI (if available)
+
+```bash
+# Check if perccli is installed
+which perccli
+
+# If not installed, download from Dell
+# Then check physical disks
+perccli /c0 show
+
+# Check virtual disks
+perccli /c0/vall show
+```
+
+### Option 3: Check via /proc or /sys
+
+```bash
+# Check for PERC controller info
+cat /proc/scsi/scsi
+
+# Check block devices
+ls -la /dev/sd*
+
+# Check for additional controllers
+lspci | grep -i raid
+lspci | grep -i perc
+lspci | grep -i lsi
+```
+
+### Option 4: Check dmesg for disk detection
+
+```bash
+# Check kernel messages for disk detection
+dmesg | grep -i "sd[a-z]"
+dmesg | grep -i "disk"
+dmesg | grep -i "perc"
+dmesg | grep -i "raid"
+
+# Check recent disk events
+journalctl -k | grep -i disk | tail -50
+```
+
+---
+
+## What to Look For
+
+### If Drives Are in PERC Controller
+
+You should see:
+- 8 physical disks total
+- 2x 300GB drives (already configured)
+- 6x 250GB drives (may be unconfigured or in RAID)
+
+### If Drives Are Unconfigured
+
+They may show as:
+- "Unconfigured Good" or "Ready"
+- Not assigned to any virtual disk
+- Available for configuration
+
+### If Drives Are in RAID
+
+They may be:
+- Part of a RAID array (virtual disk)
+- Not exposed as individual disks to OS
+- Need to be removed from RAID to use individually
+
+---
+
+## Next Steps Based on Findings
+
+### Scenario 1: Drives Detected in PERC but Unconfigured
+
+**Action**: Configure drives as individual disks (non-RAID) or create separate virtual disks
+
+```bash
+# Using perccli (example - adjust for your setup)
+# Create individual virtual disks (one per physical disk)
+# This exposes each drive to the OS
+
+# Or configure PERC in HBA mode (if supported)
+# This passes drives directly to OS without RAID
+```
+
+### Scenario 2: Drives Not Detected in PERC
+
+**Possible causes**:
+- Drives not physically installed
+- Drive backplane issue
+- Controller issue
+
+**Action**: 
+1. Check physical installation
+2. Check drive bay LEDs
+3. Check PERC controller status
+4. May need to reseat drives
+
+### Scenario 3: Drives in RAID Array
+
+**Action**: 
+1. Check RAID configuration
+2. Decide if RAID array can be broken up
+3. May need to backup data and reconfigure
+4. Create individual virtual disks for Ceph OSDs
+
+---
+
+## Recommended Configuration for Ceph
+
+For Ceph OSDs, you want:
+- **Individual disks** (not in RAID)
+- **Direct access** to each physical disk
+- **PERC in HBA mode** (if supported) or individual virtual disks
+
+**Why**: Ceph handles redundancy, so RAID is not needed and can reduce performance.
+
+---
+
+## Quick Check Commands
+
+Run these on R630-01:
+
+```bash
+# 1. Check for PERC controller
+lspci | grep -iE "raid|perc|lsi|megaraid"
+
+# 2. Check kernel messages
+dmesg | grep -iE "sd[a-z]|disk|perc" | tail -20
+
+# 3. Check /proc for SCSI devices
+cat /proc/scsi/scsi
+
+# 4. Check for additional block devices
+lsblk
+fdisk -l
+
+# 5. Check if OpenManage is available
+which omreport
+which perccli
+```
+
+---
+
+## Summary
+
+The 6x 250GB drives are likely:
+1. **In PERC controller** but not configured/exposed
+2. **In a RAID array** that needs to be reconfigured
+3. **Not physically installed** (less likely if user confirmed they exist)
+
+**Next Step**: Check PERC controller status to see where the drives are.
+
+---
+
+**Last Updated**: 2025-12-13
+