Making changes to VMware pvscsi driver parameters aligned with SAP recomendations
This document (000019614) is provided subject to the disclaimer at the end of this document.
Environment
SUSE Linux Enterprise Server for SAP Applications 12 Service Pack 4
SUSE Linux Enterprise Server for SAP Applications 12 Service Pack 5
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server for SAP Applications 15 Service Pack 1
Situation
vmw_pvscsi.ring_pages=32
Resolution
The only way to make these changes is to add the parameters to the appropriate grub boot entry and reboot.
Edit /etc/default/grub and change the line GRUB_CMDLINE_LINUX_DEFAULT= e.g.:
GRUB_CMDLINE_LINUX_DEFAULT="resume=/dev/sda2 mitigations=auto splash=silent vmw_pvscsi.cmd_per_lun=1024 vmw_pvscsi.ring_pages=32 quiet showopts crashkernel=183M,high crashkernel=72M,low"
Then run: grub2-mkconfig -o /boot/grub2/grub.cfg e.g.:
Generating grub configuration file ...
Found theme: /boot/grub2/themes/SLE/theme.txt
Found linux image: /boot/vmlinuz-<version>-default
Found initrd image: /boot/initrd-<version>-default
done
This will generate a new /boot/grub2/grub.cfg file and the changes made will survive updates to the system which cause the regeneration of grub.cfg
Cause
vmw_pvscsi.ring_pages=32
Additional Information
Best Practices and Recommendations for Scale-up Deployments of SAP® HANA® on VMware vSphere®
DEPLOYMENT AND TECHNICAL CONSIDERATIONS GUIDE
https://www.suse.com/media/guide/sap_hana_on_vmware_vsphere_best_practices_guide-white-paper.pdf
Disclaimer
This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.
- Document ID:000019614
- Creation Date: 28-Apr-2020
- Modified Date:28-Apr-2020
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- SUSE Linux Enterprise Server for SAP Applications
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