HP ProLiant Storage Server User Guide (440584-003, September 2007)

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Micr osoft iSCSI Software T arget

The Microsoft iSCSI Software Target snap-in is a standard feature of Windows Uniﬁed Data Storage

Server 2003. This snap-in makes it possible not only for the storage ser ver to connect to remote iSCSI

targets, but also to serve as an iSCSI target. With Microsoft iSCSI Software Target, you can create and

manage iSCSI targets, create and manage disks for storage, and implement backup and recovery

support using snapshots.

Virtual disk storage

The disks you create using iSCSI Software Target are iSCSI virtual disks, which are ﬁles in the virtual

hard disk (VHD) format. These virtual disks offer ﬂexible and effective storage. They are dynamically

extendable to provide extra c apacity on demand, enable efﬁcient storage utilization, and minimize the

time requi

redtocreatenewdisksandthedowntimetypicallyrequiredtoinstallnewdisks.

Snapshots

To facilitate backup and recovery operations, you can schedule and create snapshots of iSCSI virtual

disks. A snapshot is a point-in-time, read-only copy of an iSCSI virtual disk. Snapshots are typically used

as interim copies of data that has been modiﬁed since the most recent backup. Snapshots offer the

following advantages:

• Snapshots can be scheduled to b e created automatically.

• Snapshots are space-efﬁcient because they are differential copies.

• It is not necessary to close ﬁles or stop programs when creating snapshots, so application servers

can continue ser vicing clients without disruption.

• Each snapshot is typically created in less than one minute—regardless of the amount of data.

• Snapshots are useful for fast s ystem recovery of ﬁles and volumes, in case of accidental data

deletion by a user, overwritten data, or data corruption resulting from a malicious program.

• Snapshots can be mounted loca lly or exported to facilitate backup and recovery operations.

Wi zards

To support creation and management of iSCSI targets, virtual disks, and snapshots, the iSCSI Software

Targe

t snap-in provides several wizards.

Create iSCSI Target Wizard

This section describes how to create an iSCSI Target using the Create iSCSI Target Wizard.

1. Log on to the storage ser ver using an account with administrative privileges.

2. Open the Microsoft iSCSI Software Target MMC snap-in by clicking Start > Programs >

Administrative Tools > Microsoft iSCSI Software Target.

Enterprise storage servers