266 lines
4.0 KiB
HTML
266 lines
4.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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>Forcing a cluster container to be active</TITLE
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>Chapter 14. Clustering operations</TD
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><A
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NAME="AEN2946"
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></A
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>14.10. Forcing a cluster container to be active</H1
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><P
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> A private container and its objects are made active on a node if:</P
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><P
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></P
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><UL
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><LI
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><P
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> the private container is owned by the node
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</P
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></LI
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><LI
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><P
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> the container is not deported
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</P
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></LI
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><LI
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><P
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> the node is in a cluster membership that currently has quorum
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</P
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></LI
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></UL
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><P
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> Similarly, a shared container and its objects are made active on a node if
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the node is in a cluster that currently has quorum.
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However, the administrator can force the
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activation of private and shared containers by overriding these rules.
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</P
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><DIV
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CLASS="note"
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><P
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>NOTE</B
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> </TD
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ALIGN="LEFT"
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><P
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> Use extreme caution when performing this operation by ensuring that the
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node on which the cluster container resides is the only active node in the
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cluster. Otherwise, the data in volumes on shared and private containers
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on the node can get corrupted.
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</P
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><P
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TYPE="1"
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><LI
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><P
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> Enabling maintenance mode in the <TT
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CLASS="filename"
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>/etc/evms.conf</TT
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> file.
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The option to modify in the <TT
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CLASS="filename"
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>/etc/evms.conf</TT
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> file is the
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following:
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</P
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><TD
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><FONT
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COLOR="#000000"
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><PRE
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CLASS="programlisting"
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> # cluster segment manager section
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csm {
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# admin_mode=yes # values are: yes or no
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# The default is no. Set this key to
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# yes when you wish to force the CSM
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# to discover objects from all cluster
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# containers, allowing you to perform
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# configuration and maintenance. Setting
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# admin_mode to yes will cause the CSM
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# to ignore container ownership, which
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# will allow you to configure storage
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# in a maintenance mode.
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</PRE
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></FONT
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></TD
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></TR
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></TABLE
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><P
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> </P
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></LI
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><LI
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><P
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> Running <B
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CLASS="command"
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>evms_activate</B
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> on the node.
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</P
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></LI
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>Remote configuration management</TD
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>Converting volumes</TD
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