9 Ответы Последний ответ: 23.10.2016 22:03, автор: Robin.A-Oracle

    Oracle 12c: ASMLib vs. UDEV on RHEL7

    Michael8773

      Hello,

       

      In scouring the Internet I have encounter mixed messages on this topic.  Ideally on RHEL 7 (Redhat version 7) I want to use just ASMLib rather than having to mess with udev (yuck!!!!).  Most current examples however seem to say "yes use ASMLib" but then still go on and perform udev operations!?  Some examples: 1, 2, 3

       

      With respect to ASM\RAC\disks, udev seems to minimally require:

      • Identifying the disks (/sbin/scsi_id)
      • Getting the output for every disk (Example: /usr/lib/udev/scsi_id -g -u -d /dev/sdb1 ==> 1ATA_VBOX_HARDDISK_VBbaffce72-62c14e41).
      • Creating a custom rules file (/etc/udev/rules.d/90-ib.rules).

       

      My questions:

      1. Is ASMLib designed such that you do not need to perform udev operations to configure disks for ASM?
      2. Is ASMLib fully supported on RHEL 7 for ASM and  RAC?

       

       

      Thanks for clarifying this,

       

      Michael