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chore: consolidate local WIP (repo cleanup 20260707) 
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-07 09:41:34 -07:00

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# ML110-01 fdisk Output - Detailed Disk Information
**Date**: Generated from `fdisk -l` command
**Host**: ml110-01 (192.168.11.10)
## Complete fdisk Output
```
Disk /dev/sda: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: ST1000DM003-1ER1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: F9CFB0F5-ED1C-477B-9656-5D2651A864E1
Device Start End Sectors Size Type
/dev/sda1 34 2047 2014 1007K BIOS boot
/dev/sda2 2048 2099199 2097152 1G EFI System
/dev/sda3 2099200 1953525134 1951425935 930.5G Linux LVM
Partition 1 does not start on physical sector boundary.
Disk /dev/sdb: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: ST1000DM003-1ER1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/ceph--ba672668--8341--42e0--a8fd--277cee5491e4-osd--block--fcaaaa49--68ea--4664--8559--7f76088f246d: 931.51 GiB, 1000203091968 bytes, 1953521664 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/pve-swap: 8 GiB, 8589934592 bytes, 16777216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/pve-root: 96 GiB, 103079215104 bytes, 201326592 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdc: 28.91 GiB, 31042043904 bytes, 60628992 sectors
Disk model: USB 2.0 FD
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: B9083D28-1E94-45BC-A8A3-DA68BE09A9A9
Device Start End Sectors Size Type
/dev/sdc1 64 635 572 286K Microsoft basic data
/dev/sdc2 636 17019 16384 8M EFI System
/dev/sdc3 17020 3577255 3560236 1.7G Apple HFS/HFS+
/dev/sdc4 3577256 3577855 600 300K Microsoft basic data
GPT PMBR size mismatch (3577903 != 60628991) will be corrected by write.
```
## Disk Analysis
### System Disk: `/dev/sda` (931.51 GiB / 1TB)
- **Model**: ST1000DM003-1ER1 (Seagate Barracuda 1TB HDD)
- **Partition Table**: GPT
- **Disk Identifier**: F9CFB0F5-ED1C-477B-9656-5D2651A864E1
- **Sector Size**: 512 bytes logical / 4096 bytes physical (4K native)
- **I/O Size**: 4096 bytes (optimal)
- **Partitions**:
- `/dev/sda1`: 1007K (sectors 34-2047) - BIOS boot partition
- **Note**: Partition 1 does not start on physical sector boundary (minor alignment issue)
- `/dev/sda2`: 1G (sectors 2048-2099199) - EFI System partition
- `/dev/sda3`: 930.5G (sectors 2099200-1953525134) - Linux LVM
- **LVM Volumes**:
- `/dev/mapper/pve-swap`: 8 GiB
- `/dev/mapper/pve-root`: 96 GiB
- Additional space likely in `pve-data` volume (not shown in fdisk output)
### Ceph OSD Disk: `/dev/sdb` (931.51 GiB / 1TB)
- **Model**: ST1000DM003-1ER1 (Seagate Barracuda 1TB HDD)
- **Status**: Used by Ceph OSD
- **Sector Size**: 512 bytes logical / 4096 bytes physical (4K native)
- **I/O Size**: 4096 bytes (optimal)
- **Ceph OSD Block Device**:
- `/dev/mapper/ceph--ba672668--8341--42e0--a8fd--277cee5491e4-osd--block--fcaaaa49--68ea--4664--8559--7f76088f246d`
- Size: 931.51 GiB (full disk used for OSD)
- **OSD ID**: Likely OSD 0 or 1 (check with `ceph osd tree`)
### USB Drive: `/dev/sdc` (28.91 GiB)
- **Model**: USB 2.0 FD (USB Flash Drive)
- **Partition Table**: GPT
- **Disk Identifier**: B9083D28-1E94-45BC-A8A3-DA68BE09A9A9
- **Sector Size**: 512 bytes (logical/physical)
- **Partitions**:
- `/dev/sdc1`: 286K - Microsoft basic data
- `/dev/sdc2`: 8M - EFI System
- `/dev/sdc3`: 1.7G - Apple HFS/HFS+
- `/dev/sdc4`: 300K - Microsoft basic data
- **Status**: Appears to be a bootable USB drive (possibly macOS installer or boot media)
- **Warning**: GPT PMBR size mismatch detected (partition table may need correction)
## Key Observations
1. **System Disk (`/dev/sda`)**:
- 1TB HDD with Proxmox VE installation
- Properly partitioned with GPT
- Has both BIOS boot and EFI System partitions
- LVM configured with swap and root filesystem
- 4K native physical sector size (modern HDD standard)
2. **Ceph OSD Disk (`/dev/sdb`)**:
- 1TB HDD dedicated to Ceph OSD
- Full disk used for Ceph block device
- Matches system disk model (same hardware)
- Active Ceph OSD in use
3. **USB Drive (`/dev/sdc`)**:
- 28.91GB USB flash drive
- Contains bootable partitions (EFI, HFS+)
- Likely installation media or boot drive
- GPT partition table has size mismatch warning
4. **LVM Configuration**:
- `pve-swap`: 8GB swap space
- `pve-root`: 96GB root filesystem (larger than r630-01's 79.5GB)
- Remaining space in LVM likely allocated to `pve-data`
## Comparison with R630-01
| Feature | ML110-01 | R630-01 |
|---------|----------|---------|
| System Disk | 1TB HDD (sda) | 300GB SAS (sda) |
| Ceph OSD Disk | 1TB HDD (sdb) - Active | 6x 250GB SSDs (sdc-sdh) - Available |
| Root Filesystem | 96GB | 79.5GB |
| Swap | 8GB | 8GB |
| Additional Storage | USB drive (sdc) | Secondary 300GB SAS (sdb) |
## Recommendations
- **System Disk**: Keep `/dev/sda` as-is for Proxmox VE OS
- **Ceph OSD**: `/dev/sdb` is already configured and active
- **USB Drive**: `/dev/sdc` appears to be temporary/installation media - can be removed if not needed
- **Storage Expansion**: ML110-01 has less available storage than R630-01 (which has 6x SSDs available)
## Related Documentation
- [R630-01 fdisk Output](./r630-01-fdisk-output.md) - Comparison disk layout
- [R630-01 Disk Layout Reference](./r630-01-disk-layout.md) - R630-01 overview
- [Ceph OSD Setup Documentation](../ceph/) - Ceph configuration guides
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