Making changes to VMware pvscsi driver parameters aligned with SAP recommendations
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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
SUSE Linux Enterprise Server for SAP Applications 15 Service Pack 2
SUSE Linux Enterprise Server for SAP Applications 15 Service Pack 3
SUSE Linux Enterprise Server for SAP Applications 15 Service Pack 4
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=254 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
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
Architecture Guidelines And Best Practices For Deployments of Sap Hana On VMware vSphere
: Architecture And Technical Considerations Guide
Large-scale workloads with intensive I/O patterns might require queue depths significantly greater than Paravirtual SCSI default values (2053145)
Note: Previously, in older documents from SUSE and VMware, the advice was to set vmw_pvscsi.cmd_per_lun to 1024. However, this advice has been changed by VMware in more recent documents and this TID has been changed to reflect that. Please refer to VMware for questions related to VMware specific settings.
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- Document ID:000019614
- Creation Date: 16-Mar-2023
- Modified Date:16-Mar-2023
- SUSE Linux Enterprise Server for SAP Applications
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