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-rw-r--r--lib/snmp/doc/src/snmp_app.xml94
1 files changed, 79 insertions, 15 deletions
diff --git a/lib/snmp/doc/src/snmp_app.xml b/lib/snmp/doc/src/snmp_app.xml
index 9cdbcc91c5..c62c8f1541 100644
--- a/lib/snmp/doc/src/snmp_app.xml
+++ b/lib/snmp/doc/src/snmp_app.xml
@@ -311,8 +311,8 @@
<p>Default is <c>[]</c>.</p>
</item>
- <marker id="agent_mib_storage"></marker>
- <tag><c><![CDATA[mib_storage() = [mib_storage_opt()]]]></c></tag>
+ <marker id="agent_mib_storage"></marker>
+ <tag><c><![CDATA[mib_storage() = [mib_storage_opt()] <optional>]]></c></tag>
<item>
<p><c>mib_storage_opt() = {module, mib_storage_module()} | {options, list()}</c></p>
<p>This option specifies how basic mib data is stored.
@@ -322,21 +322,85 @@
</item>
<marker id="agent_mst_module"></marker>
- <tag><c><![CDATA[mib_storage_module() = snmpa_mib_data_ets | snmpa_mib_data_dets | snmpa_mib_data_mnesia | module() <optional>]]></c></tag>
+ <tag><c><![CDATA[mib_storage_module() = snmpa_mib_data_ets | snmpa_mib_data_dets | snmpa_mib_data_mnesia | module()]]></c></tag>
<item>
- <p>Defines the callback mib data storage module of the
- SNMP agent mib-server as defined by the
- <seealso marker="snmpa_mib_data">snmpa_mib_data</seealso>
+ <p>Defines the mib storage module of the SNMP agent as defined by the
+ <seealso marker="snmpa_mib_storage">snmpa_mib_storage</seealso>
behaviour. </p>
- <p>At present only the default module is provided with the agent,
- <c>snmpa_mib_data_tttn</c>. </p>
-<!--
- <p>Two modules is provided with the agent
- <c>snmpa_mib_data_tttn</c> (this is the old implementation) and
- <c>snmpa_mib_data_ttln</c> (for a mib tree with many holes,
- this algorithm can be more price efficient). </p>
--->
- <p>Default module is <c>snmpa_mib_data_tttn</c>. </p>
+ <p>Several entities (<c>mib-server</c> via the its data module and
+ the <c>symbolic-store</c>) of the snmp agent uses this for storage
+ of miscelaneous mib data. </p>
+ <p>There are several implementations provided with the agent:
+ <c>snmpa_mib_storage_ets</c>, <c>snmpa_mib_storage_dets</c> and
+ <c>snmpa_mib_storage_mnesia</c>. </p>
+ <p>Default module is <c>snmpa_mib_storage_ets</c>. </p>
+ </item>
+
+ <marker id="agent_mst_options"></marker>
+ <tag><c><![CDATA[mib_storage_options() = list() <optional>]]></c></tag>
+ <item>
+ <p>This is implementattion depended. That is, it depends on the
+ module. For each module a specific set of options are valid: </p>
+ <list type="bulleted">
+ <item>
+ <p><c>snmpa_mib_storage_ets</c>: <c>{dir, filename()} | {action, keep | clear}, {checksum, boolean()}</c></p>
+ <list>
+ <item>
+ <p><c>dir</c> - If present, points to a directory where a file
+ to which all data in the ets table is "synced". </p>
+ <p>Also, when a table is opened this file is read,
+ if it exists. </p>
+ <p>By default, this will <em>not</em> be used. </p>
+ </item>
+ <item>
+ <p><c>action</c> - Specifies the behaviour when a non-empty
+ file is found: Keep its content or clear it out. </p>
+ <p>Default is <c>keep</c>. </p>
+ </item>
+ <item>
+ <p><c>checksum</c> - Defines if the file is checksummed
+ or not. </p>
+ <p>Default is <c>false</c>. </p>
+ </item>
+ </list>
+ </item>
+ <item>
+ <p><c>snmpa_mib_storage_dets</c>: <c>{dir, filename()} | {action, keep | clear}, {auto_save, default | pos_integer()} | {repair, force | boolean()}</c></p>
+ <list>
+ <item>
+ <p><c>dir</c> - This <em>mandatory</em> option points to a
+ directory where to place the file of a dets table. </p>
+ </item>
+ <item>
+ <p><c>action</c> - Specifies the behaviour when a non-empty
+ file is found: Keep its content or clear it out. </p>
+ <p>Default is <c>keep</c>. </p>
+ </item>
+ <item>
+ <p><c>auto_save</c> - Defines the dets auto-save frequency. </p>
+ <p>Default is <c>default</c>. </p>
+ </item>
+ <item>
+ <p><c>repair</c> - Defines the dets repair behaviour. </p>
+ <p>Default is <c>false</c>. </p>
+ </item>
+ </list>
+ </item>
+ <item>
+ <p><c>snmpa_mib_storage_mnesia</c>: <c>{action, keep | clear}, {nodes, [node()]}</c></p>
+ <list>
+ <item>
+ <p><c>action</c> - Specifies the behaviour when a non-empty,
+ already existing, table: Keep its content or clear it out. </p>
+ <p>Default is <c>keep</c>. </p>
+ </item>
+ <item>
+ <p><c>nodes</c> - Defines where to open the table. </p>
+ <p>Default is the result of the call: <c>erlang:nodes()</c>. </p>
+ </item>
+ </list>
+ </item>
+ </list>
</item>
<marker id="agent_mib_server"></marker>