HP StorageWorks P4000 Series Manuel utilisateur
HP StorageWorks
P4000 Series 1 GbE to 10 GbE Migration
Guide
Part Number: BQ891–96002
Second edition: June 2010
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Contents
About this guide ................................................................................... 5
1 Instructions for migrating bonded interfaces in a SAN cluster from 1 GbE
to 10 GbE Ethernet ............................................................................... 7
Overview ................................................................................................................................... 7
Best Practice ........................................................................................................................ 7
Bonding 10 GbE interfaces .......................................................................................................... 7
Supported bonds with 10 GbE .............................................................................................. 7
Unsupported bonds with 10 GbE ........................................................................................... 7
Migrating an existing cluster to a 10 GbE bonded configuration ....................................................... 8
Installation overview ............................................................................................................. 8
Installation prerequisites ........................................................................................................ 9
Prepare IP address worksheets ......................................................................................... 9
Put the management group into maintenance mode .......................................................... 10
Install the hardware and the software patch ........................................................................... 10
Configure the 10 GbE ports for SAN/iQ software communication using the CMC ...................... 12
Configure the 10 GbE and 10 GbE ALB bond (using eth2 and eth3) ........................................ 13
Creating the ALB bond ................................................................................................. 13
Verifying the bond ....................................................................................................... 14
Changing the VIP if required ......................................................................................... 14
Preparing your host server to be 10 GbE capable ............................................................ 14
P4000 Series 1 GbE to 10 GbE Migration Guide 3
Tables
HP StorageWorks P4000 —possible 10 GbE Ethernet bonds ........................................ 81
Storage node network configuration pre-migration ........................................................ 92
Storage node network configuration post-migration ....................................................... 93
Pre-upgrade storage node information ....................................................................... 104
During upgrade, use this storage node information ...................................................... 105
4
About this guide
This guide provides information about migrating bonded interfaces in an existing cluster from 1 GbE
to 10 GbE.
P4000 Series 1 GbE to 10 GbE Migration Guide 5
About this guide6
1 Instructions for migrating bonded
interfaces in a SAN cluster from 1 GbE to
10 GbE Ethernet
Overview
The 10 GbE feature option adds 10 GbE to the HP StorageWorks P4000 platforms. This is an add-on
feature to the standard 1 GbE dual Ethernet adapters built into the system boards of the P4000 storage
nodes. After the 10 GbE dual port Ethernet adapter is installed and configured, users see four Ethernet
interfaces listed in the Centralized Management Console (CMC) TCP/IP Network tab window. These
four interfaces can be bonded a number of ways.
Best Practice
We recommend bonding network interfaces for performance and failover. The best bond to use
depends on your network and SAN configuration.
Bonding 10 GbE interfaces
After installing the 10 GbE upgrade, you have a choice of supported bond configurations. Note that
not all the bond configurations which are supported by the HP LeftHand Storage Solution are supported
with the 10 GbE upgrade.
Supported bonds with 10 GbE
The P4000 with the 10 GbE feature installed and configured supports these bond types.
•Adaptive Load Balancing (ALB) bond with the two 10 GbE Ethernet NICs
•Active-Passive bond with two 10 GbE Ethernet NICs
•Active-Passive bond with 1 GbE NIC and 10 GbE NIC
•Link Aggregation Dynamic Mode (802.3ad) bond with two 10 GbE Ethernet NICs
Unsupported bonds with 10 GbE
The HP StorageWorks P4000 with the 10 GbE feature installed and configured does not support the
following bond types:
•Bonding two bonds
•ALB bond with 1 GbE NIC and 10 GbE NIC
P4000 Series 1 GbE to 10 GbE Migration Guide 7
•Link Aggregation Dynamic Mode bond with 1 GbE NIC and 10 GbE NIC
Table 1 HP StorageWorks P4000 —possible 10 GbE Ethernet bonds
SAN/iQ soft-
ware interface
eth3 (10 GbE)eth2 (10 GbE)Motherboard:Port2
(1 GbE)
Motherboard:Port1
(1 GbE)
eth2DisabledEnabledDisabledDisabled
eth2EnabledEnabledDisabledDisabled
eth3EnabledEnabledDisabledDisabled
BondALB BondALB BondDisabledDisabled
Bond802.3ad bond802.3ad bondDisabledDisabled
BondBond (Passive)Bond (Active)DisabledDisabled
BondDisabledBond (Active)DisabledBond (Passive)
BondBond (Active)DisabledDisabledBond (Passive)
BondDisabledBond (Active)Bond (Passive)Disabled
BondBond (Active)DisabledBond (Passive)Disabled
Bond-10 GbEBond-10 GbEBond-10 GbEBond-1 GbEBond-1 GbE
Migrating an existing cluster to a 10 GbE bonded configuration
When upgrading to 10 GbE HP StorageWorks P4000s that have bonded NICs and are already in
a cluster and providing storage volumes, you must follow certain steps to ensure an effective migration
to the new hardware configuration. This migration guide covers one possible bonded configuration
—the ALB bond configured with two 10 GbE interfaces as an ALB bonded pair.
Installation overview
The example below shows how to migrate existing HP StorageWorks P4000s configured with a 1
GbE ALB bond to a configuration with a two 10 GbE NICs configured with an ALB bond. For this
example, the other two Ethernet interfaces in the storage nodes are not used by the SAN/iQ software
and can be disabled.
The example below utilizes planned downtime of the entire management group and results in none
of the volumes needing to restripe data. However, all access and I/O to the volume(s) is disconnected
during this upgrade period.
A summary of the installation and migration steps follow:
1. Stop all I/O and disconnect all iSCSI sessions to volumes.
2. Shut down management group and power off all storage nodes.
3. Install 10 GbE Ethernet adapter and additional memory in each storage node.
4. Power on each storage node and install the appropriate software patch, as described in the
P4000 10 GbE Hardware Installation Instructions.
5. Configure new IP address and bonds for 10 GbE on each storage node, and change the SAN/iQ
communication IP address.
Instructions for migrating bonded interfaces in a SAN cluster from 1 GbE to 10 GbE Ethernet8
6. Change the cluster's VIP if required.
7. Reconnect iSCSI sessions and start I/O.
Installation prerequisites
Check the following two items before starting the migration:
•Have compatible VIP addresses for the 10 GbE switches that are running the 10 GbE ALB bond.
SAN/iQ software version 8.x requires each cluster to have a valid VIP address. A valid VIP address
is one that is on the same subnet as the storage nodes. This VIP address must be valid after updating
the storage nodes to the 10 GbE ALB bond.
•Ensure that all network settings (Flow Control, Frame Size (MTU)) for each NIC are consistent
across the switch, the storage node and the client. The network settings must be configured the
same on each interface before creating a bond.
Table 2 shows a summary of the network interfaces and bonds listed on the CMC TCP/IP Network
panels before installing and configuring the 10 GbE adapter. Table 3 shows a summary list of those
interfaces and bonds after installing and configuring the 10 GbE adapter.
NOTE:
The SAN/iQ communication interface in both configurations is Bond0.
Table 2 Storage node network configuration pre-migration
ModeSpeedNIC
Slave (bond0)1 GbEMotherboard:Port1
Slave (bond0)1 GbEMotherboard:Port2
Logical Failover Device (ALB)1 GbEBond type
Table 3 Storage node network configuration post-migration
ModeSpeedNIC
Disabled (Optional)1 GbEMotherboard:Port1
Disabled (Optional)1 GbEMotherboard:Port2
Active (bond0)10 GbEeth2
Active (bond0)10 GbEeth3
ALB—Bond type
Prepare IP address worksheets
Write down the following information and keep this information handy throughout the migration
process for each storage node.
P4000 Series 1 GbE to 10 GbE Migration Guide 9
In Table 4, enter information about the storage node before it is updated. In Table 5, enter the
information about the storage node you will use during the update.
Table 4 Pre-upgrade storage node information
Motherboard:Port1 IP address
Motherboard:Port2 IP address
Bond address
Cluster VIP
Table 5 During upgrade, use this storage node information
eth2 IP address to use
eth3 IP address to use
Bond0 IP address to use
Cluster VIP (if different from the cluster VIP in
table 4)
Put the management group into maintenance mode
1. Halt all I/O to the volume(s).
2. Using the iSCSI initiator, log off all the volumes attached to this cluster.
3. Right-click the management group in the navigation window and select Shutdown Management
Group to place the group into Maintenance mode. The following message opens:
4. Click Shut Down Group. A confirmation message opens.
5. Click Shut Down Group to continue the shutdown process.
6. Verify that all the storage nodes in the management group are powered OFF.
Install the hardware and the software patch
Follow the instructions in the appropriate P4000 10 GbE Hardware Installation Instructions to install
the 10 GbE network card, additional memory and apply the appropriate software patch.
Instructions for migrating bonded interfaces in a SAN cluster from 1 GbE to 10 GbE Ethernet10
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