Dell Serial Attached SCSI 6iR Integrated and Adapter - Manual (Page 45)

SAS 6/iR BIOS
43
There are several limitations when creating a RAID 0 virtual disk:
• All disks must be either Dell-compliant SAS or SATA physical disks.
• SAS and SATA physical disks cannot be used in the same virtual disk.
• There must be at least 2 physical disks in a virtual disk.
• No more than 8 physical disks are allowed in a virtual disk.
5 Press <C> and then select Save changes when the virtual disk has been
fully configured.
6 Press <F3> to confirm that existing data will be lost with the creation of
the virtual disk. The Configuration Utility will pause while the virtual disk
is being created.
NOTICE:
RAID 0 does not provide any data protection in the event of disk failure.
It is primarily used to increase performance.
NOTE:
Once the number of disks in a RAID virtual disk is set, it cannot be changed.
NOTE:
The maximum size of the virtual disk that contains the bootable operating
system is 2 Terabytes. This is due to operating system restrictions.The maximum
array size (non-bootable) is 16 Terabytes.
Creating a Integrated Mirroring Virtual Disk
An Integrated Mirroring (IM) virtual disk, also referred to as RAID 1, offers
the ability to mirror data from one physical disk onto another one. RAID 1
volumes offer increased reliability by combining two physical disks into a
single virtual disk such that each disk contains a mirrored copy of the other’s
data. Follow these steps to create a RAID 1 virtual disk on a SAS 6/iR
controller that does not currently have a virtual disk configured.
1 Select a controller from the Adapter List in the Configuration Utility.
2 Select the RAID Properties option.
3 Select Create RAID 1 Volume when you are prompted to create either
a RAID 0 virtual disk or a RAID 1 virtual disk.
The next screen shows a list of disks that can be added to a virtual disk.
4 Move the cursor to the RAID Disk column. To add a disk to the virtual
disk, change “No” to “Yes” by pressing the <+>, <->, or space bar.
NOTICE:
Data on both disks will be lost. It is recommended that you back up all
data before performing these steps.
book.book Page 43 Monday, September 15, 2008 2:47 PM