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README.md

lsidrivemap

Owners of a IBM M1015 / LSI 9220-8i controller can use this utility to map controller ports to drives.

I have a 24 bay disk chassis and use it to create a physical map of which drive is in which slot.

nas

The tool can also show the temperature of the drive.

Example output:

root@nano:~# lsidrivemap temp

| 37 | 40 | 40 | 37 |
| 36 | 36 | 37 | 36 |
| 35 | 37 | 36 | 36 |
| 35 | 37 | 36 | 35 |
| 35 | 36 | 37 | 36 |
| 34 | 35 | 36 | 35 |

root@nano:~# lsidrivemap disk

| sdr  | sds  | sdt  | sdq  |
| sdu  | sdv  | sdx  | sdw  |
| sdi  | sdl  | sdaa | sdm  |
| sdj  | sdk  | sdn  | sdo  |
| sdb  | sdc  | sde  | sdf  |
| sda  | sdd  | sdh  | sdg  |

root@nano:~# lsidrivemap wwn

| 5000cca23dc53843 | 5000cca23dc52fea | 5000cca23dc31656 | 5000cca23dc01655 |
| 5000cca23dc459ee | 5000cca22bf0f4c3 | 5000cca22bef486a | 5000cca23dc51764 |
| 5000cca23dc186cf | 5000cca23dc02062 | 5000cca23dda5a33 | 5000cca23dd398fa |
| 5000cca23dd56dfb | 5000cca23dd3a8cd | 5000cca23dd9b7df | 5000cca23dda6ae9 |
| 5000cca23dd04ded | 5000cca23dd54779 | 5000cca23dd59e65 | 5000cca23dd59b65 |
| 5000cca23dd45619 | 5000cca23dd57131 | 5000cca23dd329ba | 5000cca23dd4f9d6 |

The wwn name of a drive is found in /dev/disk/by-id/

Customization

The output is based on my 24 bay drive chassis that has six rows of four drives. You may need to customise the 'print_controller' function to suit your own needs.

Known Issues

The script reads the WWN serial from the drive and uses it to find the drive name in /dev/disk/by-id. If the megacli command does not return a WWN, which happens on older WD drives for me, no data is returned.

Requirements

  • The script requires Python 2.7 or higher.
  • LSI command line utility megacli or megacli64 (google for a download)
  • put the /opt/MegaRAID/MegaCli/ directory in your path and either create a symbolic link to MegaCli or MegaCli64 with the name of 'megacli' in that folder.

About

Graphical mapping of disk drives in an enclosure based on output of megacli

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