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Category: ASE: Data Storage

Buffer Pool Sizes

Depending on the logical page size of an ASE Server, the possible sizes of buffer pools can vary. Normally, memory pages are always 2K, equal to 2048 bytes, independent of the server wide preconfigured size of data pages. This is not strictly true for buffer pages. Sizes of buffer pools are therefore multiples of the logical page size, because data is kept here that has been read from disk in chunks of multiples of the logical page size.

Logical Page Size Buffer Pool Sizes
2K 2K, 4K, 8K, 16K
4K 4K, 8K, 16K, 32K
8K 8K, 16K, 32K, 64K
16K 16K, 32K, 64K, 128K

Using the stored procedure sp_poolconfig buffer pools can be created, dropped or modified.