8x00 Enterprise Virtual Array release notes (XCS 6.200) (5697-0024, May 2009)

must reset the asynchronous mode for these DR groups, using HP Command View EVA or an equivalent

command, to return to normal operations.

HP recommends that you ensure the DR groups are not in a full copy state before upgrading to XCS

6.200.

Changing the host port topology

Before changing the topology settings of an array host port, physically disconnect the host port from

its existing connection, change the topology setting, and then reconnect the host port.

For example, to change from a fabric (switched) topology to a direct connect topology, do the

following:

1. Disconnect the host port(s) from the Fibre Channel switch.

2. Using the operator control panel (OCP), change the controller host port mode from fabric to direct

connect.

3. Connect the host HBA(s) directly to the array host port(s).

Host port connection limit on B-series 3200 and 3800 switches

The B-series 3200 and 3800 switches are limited to a maximum of three EVA4x00/6x00/8x00 host

ports on a single B-series 3200 and 3800 switch running version 3.2.x. HP recommends not exceeding

more than one storage host port connection on a single switch. If you are required to connect more

than one storage host port to a single affected switch, separate the connection into different quadrants.

Connections are typically dropped following an array controller resynchronization or when an event

impacts the fabric, such as rebooting or adding a switch.

Use the following options to avoid or manage the port limitation:

• For all hosts, zone by HBA as defined in the HP StorageWorks SAN design reference guide.

• Limit affected switches to only one HBA connection per host.

• Limit placement of the switch as an edge device and not part of the core.

If the switch drops a connection, reestablish as follows:

1. Disconnect the Fibre Channel cable from the failed port.

2. Wait 10 seconds and reconnect the cable. This will cause the port to relog into the fabric

and reestablish connection to the array.

Default log file size changed in asynchronous replication mode

For XCS 6.200 and above, with asynchronous replication mode, if you do not specify the replication

write history log maximum size, the firmware sets the log size to 100 GB by default. If 100 GB VRAID1

space is not available, the following error message: "Invalid async log size" will be reported.

To resolve this issue, do one of the following:

• Set the log size between 1.6 GB and 2 TB

• Free some space available in the disk group

• Select a different disk group for placement of the log which has adequate available space

Enabling Boot from SAN for Windows direct connect

To ensure that Boot from SAN is successful for Windows hosts that are directly connected to an array,

enable the Spin up delay setting in the HBA BIOS. This applies to QLogic and Emulex HBAs.