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Numeric Test Values

You can enter exact numeric test values or append values with one of the following suffixes: K, KB, M, MB, G, GB, T, TB, P, and PB.

Note: For z/OS add another B so that the suffixes are KBB, MBB, GBB, TBB, and PBB.

Decimal Definitions

To allow quick and easy calculation of sizes using decimal multiplication, the following decimal‑based definitions for K, M, G, T, and P are used within filter expressions.

• nn = nn
• nnK = nn(1,000)
• nnM = nn(1,000)(1,000)
• nnG = nn(1,000)(1,000)(1,000)
• nnT = nn(1,000)(1,000)(1,000)(1,000)
• nnP = nn(1,000)(1,000)(1,000)(1,000)(1,000)

Note: For z/OS, these are KB, MB, GB, TB, and PB.

For example, you can enter the following expression to mean allocated space greater than 5,000,000,000:

'Allocated Space' > 5G

Binary Definitions

Add another B in the suffix if you want the binary‑based definitions to be used.

In Open Systems use the following definitions:

• nnKB = nn(1,024)
• nnMB = nn(1,024)(1,024)
• nnGB = nn(1,024)(1,024)(1,024)
• nnTB = nn(1,024)(1,024)(1,024)(1,024)
• nnPB = nn(1,024)(1,024)(1,024)(1,024)(1,024)

In z/OS use the following definitions:

• nnKBB = nn(1,024)
• nnMBB = nn(1,024)(1,024)
• nnGBB = nn(1,024)(1,024)(1,024)
• nnTBB = nn(1,024)(1,024)(1,024)(1,024)
• nnPBB = nn(1,024)(1,024)(1,024)(1,024)(1,024)

For example, you can enter the following expression to mean allocated space greater than 5,368,709,120:

'Allocated Space' > 5GB

Example filter expression to identify data sets that have idle space

The following example illustrates the way in which you might use the filter to quickly identify sequential data sets that have idle space so that you could release idle space to solve a space shortage problem, and possibly avoid jobs to abend.

Specify a filter to select the data sets that belong to the desired storage group AND have a Dsorg of ps AND have some idle space. The filter statements might look like this:

SG-Name = groupxx AND 
Dsorg INCL ps AND
Tracks_Idle > 0

In Dsorg, you can also use po instead of ps. This would identify idle space in po data sets.