* * * READ ME * * * * * * Veritas Oracle Disk Manager 7.2 * * * * * * Patch 100 * * * Patch Date: 2017-05-29 This document provides the following information: * PATCH NAME * OPERATING SYSTEMS SUPPORTED BY THE PATCH * PACKAGES AFFECTED BY THE PATCH * BASE PRODUCT VERSIONS FOR THE PATCH * SUMMARY OF INCIDENTS FIXED BY THE PATCH * DETAILS OF INCIDENTS FIXED BY THE PATCH * INSTALLATION PRE-REQUISITES * INSTALLING THE PATCH * REMOVING THE PATCH PATCH NAME ---------- Veritas Oracle Disk Manager 7.2 Patch 100 OPERATING SYSTEMS SUPPORTED BY THE PATCH ---------------------------------------- AIX 7.1 PACKAGES AFFECTED BY THE PATCH ------------------------------ VRTSodm BASE PRODUCT VERSIONS FOR THE PATCH ----------------------------------- * Veritas InfoScale Storage 7.2 * Veritas InfoScale Enterprise 7.2 SUMMARY OF INCIDENTS FIXED BY THE PATCH --------------------------------------- Patch ID: 7.2.0.100 * 3910095 (3757609) CPU usage going high because of contention over ODM_IO_LOCK DETAILS OF INCIDENTS FIXED BY THE PATCH --------------------------------------- This patch fixes the following incidents: Patch ID: 7.2.0.100 * 3910095 (Tracking ID: 3757609) SYMPTOM: High CPU usage because of contention over ODM_IO_LOCK DESCRIPTION: While performing ODM IO, to update some of the ODM counters we take ODM_IO_LOCK which leads to contention from multiple of iodones trying to update these counters at the same time. This is results in high CPU usage. RESOLUTION: Code modified to remove the lock contention. INSTALLING THE PATCH -------------------- Run the Installer script to automatically install the patch: ----------------------------------------------------------- Please be noted that the installation of this P-Patch will cause downtime. To install the patch perform the following steps on at least one node in the cluster: 1. Copy the patch odm-aix71-Patch-7.2.0.100.tar.gz to /tmp 2. Untar odm-aix71-Patch-7.2.0.100.tar.gz to /tmp/hf # mkdir /tmp/hf # cd /tmp/hf # gunzip /tmp/odm-aix71-Patch-7.2.0.100.tar.gz # tar xf /tmp/odm-aix71-Patch-7.2.0.100.tar 3. Install the hotfix(Please be noted that the installation of this P-Patch will cause downtime.) # pwd /tmp/hf # ./installVRTSodm720P100 [ ...] You can also install this patch together with 7.2 base release using Install Bundles 1. Download this patch and extract it to a directory 2. Change to the Veritas InfoScale 7.2 directory and invoke the installer script with -patch_path option where -patch_path should point to the patch directory # ./installer -patch_path [] [ ...] Install the patch manually: -------------------------- AIX maintenance levels and APARs can be downloaded from the IBM Web site: http://techsupport.services.ibm.com Install the VRTSodm.bff patch if VRTSodm is already installed at fileset level 7.2.0.000 A system reboot is recommended after installing this patch. To apply the patch, then enter these commands: # mount | grep odm # cd # installp -aXd VRTSodm.bff VRTSodm REMOVING THE PATCH ------------------ Run the Uninstaller script to automatically remove the patch: ------------------------------------------------------------ To uninstall the patch perform the following step on at least one node in the cluster: # /opt/VRTS/install/uninstallVRTSodm720P100 [ ...] Remove the patch manually: ------------------------- If you need to remove the patch, then enter these commands: file systems, then enter these commands: # mount | grep odm # installp -r VRTSodm 7.2.0.100 # reboot SPECIAL INSTRUCTIONS -------------------- NONE OTHERS ------ NONE