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Swapping is undesirable and causes performance to degrade. Vertica recommends that you allocate swap space as follows:
|
RAM |
Swap Space |
|
1 GB |
2 GB |
|
2 GB |
4 GB |
|
up to 32 GB |
RAM + 2 GB |
|
more than 32 GB |
RAM or less |
Do not place a swap file on a disk containing the Vertica data files. If a host has only two disks (boot and data), put the swap file on the boot disk.