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Re: fsync and battery-backed caches - Mailing list pgsql-performance

From Tino Wildenhain
Subject Re: fsync and battery-backed caches
Date
Msg-id 4402D0A9.7080705@wildenhain.de
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In response to fsync and battery-backed caches  (Javier Somoza <jsomoza@pandasoftware.es>)
Responses Re: fsync and battery-backed caches
List pgsql-performance
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Javier Somoza schrieb:
>
>         Hi all
>
>         Is it secure to disable fsync havin battery-backed disk cache?
>
>         Thx
>
No. fsync moves the data from OS memory cache to disk-adaptor
cache which is required to benefit from battery backup.

If this data is written to the plates immediately depends on settings
of your disk adaptor card.

Regards
Tino

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