Adaptec 5325301656 Administration Guide - Page 87

iSCSI Configuration on the Snap Server, Isolate iSCSI Disks from Other Resources for Backup Purposes

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iSCSI Configuration on the Snap Server Using the VI Client to Configure iSCSI Services Follow the instructions in the VMware Server Configuration Guide, available at http://www.vmware.com to configure your iSCSI service. Use the VI Client to: 1 Create the VMKernel on the NIC card used for the iSCSI connection. 2 Configure the Service Console that connects to the VMware host. 3 Add the VMKernel port, enable the iSCSI software initiator, set up target IP addresses, and configure CHAP authentication. Rescan if necessary to see the new iSCSI service. Note On pre-VMware ESX 3i systems, you must open a port in your security profile to enable the iSCSI port. From the Configuration tab, select Security Profile, click Properties, and check the port for the iSCSI Initiator. 4 Use the Add Storage option to configure your storage. iSCSI Configuration on the Snap Server iSCSI disks are created on the Storage > iSCSI screen of the Administration Tool.Before setting up iSCSI disks on your Snap Server, carefully review the following information. Isolate iSCSI Disks from Other Resources for Backup Purposes It is important to isolate iSCSI disks from other resources on the Snap Server for two reasons: • The file system of an iSCSI disk differs fundamentally from the Snap Server's native file system • iSCSI disks are managed from client software rather than the Snap Server's Administration Tool For ease of management and particularly for data integrity and backup purposes, either dedicate the entire Snap Server to iSCSI disks, or if the server is to be used with other shared resources, place the iSCSI disk and the other shared resources on separate volumes. • Back up an iSCSI Disk from the Client, not the Snap Server - An iSCSI disk is not accessible from a share and thus cannot be backed up from the Snap Server. The disk can, however, be backed up from the client machine from which the iSCSI disk is managed. Note While some third-party, agent-based backup packages could technically back up an iSCSI disk on the Snap Server, the result would be inconsistent or corrupted backup data if any clients are connected during the operation. Only the 73

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iSCSI Configuration on the Snap Server
73
Using the VI Client to Configure iSCSI Services
Follow the instructions in the
VMware Server Configuration Guide
, available at
to configure your iSCSI service. Use the VI Client to:
1
Create the VMKernel on the NIC card used for the iSCSI connection.
2
Configure the Service Console that connects to the VMware host.
3
Add the VMKernel port, enable the iSCSI software initiator, set up target IP
addresses, and configure CHAP authentication. Rescan if necessary to see the
new iSCSI service.
Note
On pre-VMware ESX 3i systems, you must open a port in your security
profile to enable the iSCSI port. From the Configuration tab, select
Security
Profile
, click
Properties
, and check the port for the iSCSI Initiator.
4
Use the
Add Storage
option to configure your storage.
iSCSI Configuration on the Snap Server
iSCSI disks are created on the
Storage > iSCSI
screen of the Administration
Tool.Before setting up iSCSI disks on your Snap Server, carefully review the
following information.
Isolate iSCSI Disks from Other Resources for Backup Purposes
It is important to isolate iSCSI disks from other resources on the Snap Server for two
reasons:
•
The file system of an iSCSI disk differs fundamentally from the Snap Server’s
native file system
•
iSCSI disks are managed from client software rather than the Snap Server’s
Administration Tool
For ease of management and particularly for data integrity and backup purposes,
either dedicate the entire Snap Server to iSCSI disks, or if the server is to be used
with other shared resources, place the iSCSI disk and the other shared resources on
separate volumes.
•
Back up an iSCSI Disk from the Client, not the Snap Server —
An iSCSI disk is not
accessible from a share and thus cannot be backed up from the Snap Server. The
disk can, however, be backed up from the client machine from which the iSCSI
disk is managed.
Note
While some third-party, agent-based backup packages could
technically
back up an iSCSI disk on the Snap Server, the result would be inconsistent or
corrupted backup data if any clients are connected during the operation. Only the