Update swap requirements following RHEL documentation#344
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inntran wants to merge 1 commit intoceph:develfrom
Open
Update swap requirements following RHEL documentation#344inntran wants to merge 1 commit intoceph:develfrom
inntran wants to merge 1 commit intoceph:develfrom
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Feb 4, 2026
| ' MB RAM, required: 8192MB' if ansible_facts['memtotal_mb'] | int < 8192 else 'N/A' }} | ||
| swap: | ||
| required: "{{ ((ansible_facts['memtotal_mb'] | int * 1.5) | round) | int }}" | ||
| required: 4096 |
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@inntran I would at least use a variable rather than hardcoding this value
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| required: 4096 | |
| required: "{{ min_swap_memory_required }}" |
(or whatever a better name)
|
Can one of the admins verify this patch? |
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Can one of the admins verify this patch? |
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Can one of the admins verify this patch? |
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Can one of the admins verify this patch? |
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When the amount of RAM > 8GB, the recommended minimum swap size is 4GB, it's true even with RHEL 6.
And the 1.5x physical RAM swap size doesn't make sense on servers with hundreds of gigabytes of RAM.
We do not need to take hiberation into consideration especially in Ceph clusters I suppose.
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_storage_devices/getting-started-with-swap_managing-storage-devices#recommended-system-swap-space_getting-started-with-swap