Release Notes

Linux setup and configuration
17 Dell EMC PowerVault ME4 Series and Linux | 3924-BP-L
To reclaim LUN 0 for a regular volume, manually unmap and remap the volume in ME Storage Manager. In
ME Storage Manager under the Volumes topic, right-click the desired volume and click Map Volumes. On
the Map volume interface, override the LUN ID.
Map wizard
On the Linux host, perform a force rescan on all SCSI buses. This removes the enclosure entries and the
volume is assigned to LUN 0.
# rescan-scsi-bus.sh --forcerescan
# lsscsi -is
[0:0:0:0] cd/dvd QEMU QEMU DVD-ROM 0.10 /dev/sr0 - -
[6:0:0:0] disk DellEMC ME4 G275 /dev/sdg
3600c0ff0003c589fe452605b01000000 99.9GB
[7:0:0:0] disk DellEMC ME4 G275 /dev/sdh
3600c0ff0003c589fe452605b01000000 99.9GB
[8:0:0:0] disk DellEMC ME4 G275 /dev/sdi
3600c0ff0003c589fe452605b01000000 99.9GB
[9:0:0:0] disk DellEMC ME4 G275 /dev/sdj
3600c0ff0003c589fe452605b01000000 99.9GB
[10:0:0:0] disk DellEMC ME4 G275 /dev/sdk
3600c0ff0003c589fe452605b01000000 99.9GB
[11:0:0:0] disk DellEMC ME4 G275 /dev/sdl
3600c0ff0003c589fe452605b01000000 99.9GB
[12:0:0:0] disk DellEMC ME4 G275 /dev/sdm
3600c0ff0003c589fe452605b01000000 99.9GB
[13:0:0:0] disk DellEMC ME4 G275 /dev/sdn
3600c0ff0003c589fe452605b01000000 99.9GB
Note: Only use the --forcerescan option for removing the enclosure entry and reclaiming LUN 0.
3.1.3 Identify ME4 Series volumes on Linux
ME4 Series storage automatically assigns LUN IDs when the LUN is mapped to the Linux host. Assigning
specific LUN IDs to volumes is possible but requires un-mapping and re-mapping the volumes manually. In
the Map Volume wizard, administrators can explicitly override the LUN IDs.