Multipath is not creating mpath devices for all devices in RHEL

Solution Verified - Updated -

Issue

  • A client noticed that a LVM Logical Volume wasn't complete, missing a single Physical Volume. Running pvscan showed:
 [root@server ~]\# pvscan  
   Couldn't find device with uuid 'xrlmf7-YX4q-jPZB-THLi-DLkO-DqpD-becG4h'.  
   Warning: Volume Group vgTISLNXD1 is not consistent  
   PV /dev/mapper/mpath6    VG vgTISLNXD1   lvm2 [68.08 GB / 68.08 GB free]  
   PV /dev/mapper/mpath7    VG vgTISLNXD1   lvm2 [68.08 GB / 0    free]  
   PV /dev/mapper/mpath8    VG vgTISLNXD1   lvm2 [68.08 GB / 0    free]  
   PV /dev/mapper/mpath11   VG vgTISLNXD1   lvm2 [68.08 GB / 0    free]  
   PV /dev/mapper/mpath10   VG vgTISLNXD1   lvm2 [68.08 GB / 16.31 GB free]  
   PV unknown device        VG vgTISLNXD1   lvm2 [68.08 GB / 68.08 GB free]  
   Total: 6 [408.47 GB] / in use: 6 [408.47 GB] / in no VG: 0 [0   ]

From /etc/lvm/archive backups they could see that the missing PV was at one time /dev/mapper/mpath12, but mpath12 no longer exists.

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • device-mapper-multipath

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.