Need to hotplug a HP smartarray LD drive and to be seen on the system

Solution Verified - Updated -

Issue

  • Existing raid array (raid0) created on P420i got failed due to an issue with physical disk.
  • Replaced disk and rebuilt raid-array at controller using hp provided hpacucli utility and it is showing as good at controller
  • But not visible / not able to scan at system level.
  • lsscsi -g output shows an /dev/sgN device but not sdN (scsi disk) device:
[3:0:0:0]    disk    HP       LOGICAL VOLUME   5.42  /dev/sda   /dev/sg2
[3:0:0:1]    disk    HP       LOGICAL VOLUME   5.42  /dev/sdb   /dev/sg3
[3:0:0:2]    disk    HP       LOGICAL VOLUME   5.42  /dev/sdc   /dev/sg4
[3:0:0:3]    disk    HP       LOGICAL VOLUME   5.42  /dev/sdd   /dev/sg5
[3:0:0:4]    disk    HP       LOGICAL VOLUME   5.42  /dev/sde   /dev/sg6
[3:0:0:5]    disk    HP       LOGICAL VOLUME   5.42  /dev/sdf   /dev/sg7
[3:0:0:6]    disk    HP       LOGICAL VOLUME   5.42  /dev/sdg   /dev/sg8
[3:0:0:7]    disk    HP       LOGICAL VOLUME   5.42  -         /dev/sg9

Environment

  • Red Hat Enterprise Linux 6.4
  • HP P420i RAID controller.
  • Hardware RAID0 with single disk.

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