Reference Guide

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Release Notes— Fluid Cache for SAN for Linux Systems
WORKAROUND: None
Ext4 Buffer Cache Does Not Empty
ISSUE: When using the Ext4 file system, under certain circumstances the buffer cache may not
completely empty.
WORKAROUND: None
Known Issues in Fluid Cache for SAN 2.0
The following are known issues in Fluid Cache for SAN 2.0.
Removing a Server from a Cluster
ISSUE: If you try to remove a server from a cluster before shutting down the server, Enterprise
Manager displays a message saying that the action is not allowed.
WORKAROUND: Shut down the server. To shut down the server, in Enterprise Manager, locate
the server, right-click, and select Shut Down. Then to remove a cluster from server, refer to the
section “Removing a Server from a Cluster” in the Admin and Deployment Guide.
Removing Multiple Servers from a Cluster
ISSUE: Under some circumstances, removing more than one server at a time from a cluster may
cause I/O to hang or data to be lost.
WORKAROUND: Avoid removing more than one server at a time from a cluster.
Replacing a Failed Node on a Three Node Cluster
ISSUE: If one of the nodes in a three node cluster fails, Enterprise Manager does not allow
removal of the failed node, and displays a message that removing the node would result in
fewer than the minimum of three nodes required. If the node is manually removed and
returned to an operational state, Enterprise Manager does not allow it to rejoin the cluster,
displaying a message that the node already belongs to the cluster.
WORKAROUND: Image a fourth node and add it to the cluster, then remove the failed node
from the cluster.