Need data on disk drive management by OS: getting base I/O unit size, "sync" option, Direct Memory A
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Published on 2010-03-31T21:25:10Z
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Hello All,
I want to ensure I have done all I can to configure a system's disks for serious database use. The three areas I know of (any others?) to be concerned about are:
- I/O size: the database engine and disk's native size should either match, or the database's native I/O size should be a multiple of the disk's native I/O size.
- Disks that are capable of Direct Memory Access (eg. IDE) should be configured for it.
- When a disk says it has written data persistently, it must be so! No keeping it in cache and lying about it.
I have been looking for information on how to ensure these are so for CENTOS and Ubuntu, but can't seem to find anything at all!
I want to be able to check these things and change them if needed.
Any and all input appreciated.
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