LSI 3ware SAS 9750-8i Betriebsanweisung PDF herunterladen (Seite 95)

Using Auto-Carving for Multi LUN Support

www.lsi.com/channel/products 83

To enable Auto Rebuild through 3DM 2

1 Choose

Management > Controller Settings from the menu bar in

3DM 2.

2 In the Other Controller Settings section at the bottom of the screen, select

the

Enabled option for Auto Rebuild.

The page refreshes, and a message at the top confirms the change you

have made.

To enable Auto-Rebuild through 3BM

1 On the main 3BM screen,

Tab to Settings and press Enter.

2 On the pop-up menu, select

Controller Policies and press Enter.

3 On the Policy Settings page, Tab to the Auto-Rebuild field, press Enter

to display the options, select

Enable and press Enter again to select it.

Tab to OK and press Enter to select it.

The policy is enabled immediately.

Using Auto-Carving for Multi LUN Support

Auto-carving is useful for creating multiple volumes out of large arrays at the

hardware level. Then, when you boot to the operating system, each volume

appears as a different disk drive, simplifying the partitioning required at the

operating system level.

A second use of auto-carving is to gain use of the full capacity of units greater

than 2 TB in older operating systems. This is because Windows 2003 (

32-bit

and 64-bit

without SP1), and Windows XP (32-bit), do not currently recognize

unit capacity in excess of 2 TB. For more information see, search the LSI

Knowledge Base for keyword 13431 (use the Advanced Search) at

https://selfservice.lsi.com/service/main.jsp

When the Auto-Carving policy is on, any new unit larger than a specified size

(known as the carve size) will be created as multiple volumes that can be

addressed by the operating system as separate volumes. These chunks are

sometimes known as multiple LUNs (logical units). However, throughout the

3ware documentation, they are referred to as volumes.

For example, using the default carve size of 2 TB, if the unit is 2.5 TB then it

will contain two volumes, with the first volume containing 2TB and the

second volume containing 0.5 TB. If the unit is 5.0 TB then it will contain 3

volumes, with the first two volumes containing 2 TB each and the last volume

containing 1 TB. (

Note: If a specific Boot Volume was also specified in 3BM

or CLI, the first volume will be the size specified for the Boot Volume, and

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LSI 3ware SAS 9750-8i Betriebsanweisung Seite 95

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