Scratch partition
In the partition layout, we saw that a scratch partition is created during the ESXi installation procedure. But what is the scratch partition, exactly? The scratch partition is a 4 GB VFAT partition used for storing temporary data, including logs, diagnostic information, and system swap. Although the scratch partition is not required, VMware recommends that ESXi has a persistent scratch location available. If the scratch partition is not configured, /scratch is located on the ramdisk linked to /tmp/scratch.
Leaving the scratch partition on the ramdisk will affect performance and memory optimization; therefore, it is recommended to create the partition in a suitable destination.
If ESXi is installed on a destination such ...
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