diff options
| -rw-r--r-- | doc/src/sgml/amcheck.sgml | 4 | ||||
| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 8 | ||||
| -rw-r--r-- | doc/src/sgml/pageinspect.sgml | 2 | ||||
| -rw-r--r-- | doc/src/sgml/wal.sgml | 12 |
4 files changed, 12 insertions, 14 deletions
diff --git a/doc/src/sgml/amcheck.sgml b/doc/src/sgml/amcheck.sgml index 3af065615bc..a12aa3abf01 100644 --- a/doc/src/sgml/amcheck.sgml +++ b/doc/src/sgml/amcheck.sgml @@ -466,8 +466,8 @@ SET client_min_messages = DEBUG1; </listitem> <listitem> <para> - File system or storage subsystem faults where checksums happen to - simply not be enabled. + File system or storage subsystem faults when data checksums are + disabled. </para> <para> Note that <filename>amcheck</filename> examines a page as represented in some diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index 71c4f96d054..e698e74e116 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -3532,8 +3532,8 @@ description | Waiting for a newly initialized WAL file to reach durable storage </para> <para> Number of data page checksum failures detected in this - database (or on a shared object), or NULL if data checksums are not - enabled. + database (or on a shared object), or NULL if data checksums are + disabled. </para></entry> </row> @@ -3543,8 +3543,8 @@ description | Waiting for a newly initialized WAL file to reach durable storage </para> <para> Time at which the last data page checksum failure was detected in - this database (or on a shared object), or NULL if data checksums are not - enabled. + this database (or on a shared object), or NULL if data checksums are + disabled. </para></entry> </row> diff --git a/doc/src/sgml/pageinspect.sgml b/doc/src/sgml/pageinspect.sgml index 27e0598f74c..487c5d758ff 100644 --- a/doc/src/sgml/pageinspect.sgml +++ b/doc/src/sgml/pageinspect.sgml @@ -85,7 +85,7 @@ test=# SELECT * FROM page_header(get_raw_page('pg_class', 0)); <para> The <structfield>checksum</structfield> field is the checksum stored in the page, which might be incorrect if the page is somehow corrupted. If - data checksums are not enabled for this instance, then the value stored + data checksums are disabled for this instance, then the value stored is meaningless. </para> </listitem> diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index 52b5b8f793b..4fc09761115 100644 --- a/doc/src/sgml/wal.sgml +++ b/doc/src/sgml/wal.sgml @@ -194,10 +194,8 @@ </listitem> <listitem> <para> - Data pages are not currently checksummed by default, though full page images - recorded in WAL records will be protected; see <link - linkend="app-initdb-data-checksums"><application>initdb</application></link> - for details about enabling data checksums. + Data pages are checksummed by default, and full page images + recorded in WAL records are always checksum protected. </para> </listitem> <listitem> @@ -238,15 +236,15 @@ </indexterm> <para> - By default, data pages are not protected by checksums, but this can - optionally be enabled for a cluster. When enabled, each data page includes + By default, data pages are protected by checksums, but this can + optionally be disabled for a cluster. When enabled, each data page includes a checksum that is updated when the page is written and verified each time the page is read. Only data pages are protected by checksums; internal data structures and temporary files are not. </para> <para> - Checksums are normally enabled when the cluster is initialized using <link + Checksums can be disabled when the cluster is initialized using <link linkend="app-initdb-data-checksums"><application>initdb</application></link>. They can also be enabled or disabled at a later time as an offline operation. Data checksums are enabled or disabled at the full cluster |