Data packing for compression-enabled storage systems

A computer-implemented method, comprising:

• packing compressed logical pages of data into open codewords without straddling until a next compressed logical page does not fit into any of the open codewords;
• determining whether a logical capacity loss is greater than a first threshold;
• and
• packing the compressed logical page in an open codeword having a greatest amount of available space in response to determining that the logical capacity loss is greater than the first threshold.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions readable and/or executable by a processor to cause the processor to perform a method comprising:

• packing, by the processor, compressed logical pages of data into open codewords without straddling until a next compressed logical page does not fit into any of the open codewords;
• determining, by the processor, whether a logical capacity loss is greater than a first threshold in response to determining that the next compressed logical page does not fit into any of the open codewords;
• and
• writing, by the processor, the data corresponding to the compressed logical pages in all open codewords to a non-volatile random access memory in response to determining that the logical capacity loss is not greater than the first threshold.