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Tune Linux Kernel Parameters For PostgreSQL Optimization

Percona

In this post, we will discuss some important kernel parameters that can affect database server performance and how these should be tuned. There are no “good” values for these two parameters since both depend on the hardware. SHMMAX / SHMALL. Until version 9.2, PostgreSQL uses System V (SysV) that requires SHMMAX setting.

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Data Redundancy With the PostgreSQL Citus Extension

Percona

Depending on the configuration, one can tune a hardware RAID for either performance or redundancy. Now let’s stretch our imagination and consider a second method of high availability, ala Citus. The best way to describe the Citus way of doing things is to reflect how data is managed by a disk RAID array. citus_columnar | 11.1-1

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SQL Server I/O Basics Chapter #2

SQL Server According to Bob

ReadFile WriteFile ReadFileScatter WriteFileGather GetOverlappedResult ​​ For extended details on the 823 error, see ​​ Error message 823 may indicate hardware problems or system problems ​​ ( [link] i crosoft.com/default.aspx?scid=kb ​​ Contact your hardware manufacture for assistance.

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