Administrator Guide

Unable to connect the vCenter Server

Description

If you change the vCenter server IP/network address or domain/admin password

while rebooting the VSA, the connection between the VSA and Fluid Cache cluster

will be lost.

Solution

From the VSA console, log in to the vCenter server with correct IP address and

credentials, and then reboot the VSA to reconnect the Fluid Cache cluster

appropriately.

Unable to recover the Fluid Cache Cluster after iSER fails

Description

When a Fluid Cache cluster device in a VSA fails, the tgt target for that LUN is

removed and iSER failover to another VSA.

Solution

To add the Fluid Cache cluster device back to the node with tgt target, reboot the

VSA with the failed device.

Creating a VSA cluster without SSDs causes iSER rescan

issues

Solution

It is an expected behavior. Dell recommends not to create a VSA cluster without

SSDs.

Delay in I/O on guest I/O virtual machine for a few

minutes when the primary CFM VSA is turned off

unexpectedly.

Solution

It is an expected behavior.

VSA with unaligned I/Os has performance issues

Solution

When using PCIe SSDs, ensure that partitions are aligned on 4KB boundaries for

best performance.