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Boot Disk Management: A Guide for the Solaris™ Operating Environment by David Deeths, John S. Howard

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Swap Device Recommendations

Versions of the 32-bit Solaris OE prior to version 7 of the Solaris OE are limited to using only the first 2 GB (231-1 bytes) of the swap device. The 64-bit Solaris OE enables any swap device to be up to 263-1 bytes (or more than 9223 Petabytes), much larger than any contemporary storage device.

The total amount of virtual memory is the sum of the physical memory (RAM) plus the sum of the sizes of the swap devices. The minimum virtual memory size is 32 MB. Systems with only 32 MB of RAM are almost impossible to purchase new, as most systems have 64 MB or more.

Because the sizing of swap space is dependent upon the needs or services provided by the system, it is not possible to provide specific recommendations for ...

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