3Ware 9550SXU-12 User Guide - Page 104
Using Auto-Carving for Multi LUN Support, To enable Auto Rebuild through 3DM
UPC - 693494970128
View all 3Ware 9550SXU-12 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 104 highlights
Configuring Your Controller To enable Auto Rebuild through 3DM 1 Choose Management > Controller Settings from the menu bar in 3DM. 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. 4 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), Windows XP (32-bit), and FreeBSD 4.x, do not currently recognize unit capacity in excess of 2 TB. For more information see, http://www.3ware.com/kb/article.aspx?id=13431. When the Auto-Carving policy is on, any unit larger than a specified size (known as the carve size) is 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 then the carve size will be applied to the remainder of the unit. For more information, see "Boot volume size" on page 103.) 92 3ware SAS/SATA RAID Software User Guide, Version 9.5.1