Asus SCSI 320-0 Global Array Manager Transition Tool - Page 85

MegaRAID Hardware Guide, CanSpan, NoSpan, can occupy space in more than one array.

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Using View/Add Configuration, Continued Step Action 5 Press to configure logical drives. The logical drive configuration screen appears: The window at the top of the screen shows the logical drive that is currently being configured as well as any existing logical drives. The column headings are: LD The logical drive number RAID The RAID level Size The logical drive size #Stripes The number of stripes (physical drives) in the associated physical array StrpSz The stripe size Drive-State The state of the logical drive 6 Set the RAID level for the logical drive. Highlight RAID and press . The available RAID levels for the current logical drive are displayed. Select a RAID level and press to confirm. See the MegaRAID Hardware Guide for your board for an explanation of the RAID levels. 7 Set the spanning mode for the current logical drive. Highlight Span and press . The choices are: CanSpan Array spanning is enabled for the current logical drive. The drive can occupy space in more than one array. NoSpan Array spanning is disabled for the current logical drive. The drive can occupy space in only one array. For two arrays to be spannable, they must have the same stripe width (they must contain the same number of physical drives) and must be consecutively numbered. For example, assuming Array 2 contains four disk drives, it can be spanned only with Array 1 and/or Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria for spanning are not met, the Span setting makes no difference for the current logical drive. Highlight a spanning option and press . Configuring RAID 10, RAID 30, or RAID 50 Logical Drives Configure RAID 10 by spanning two contiguous RAID 1 logical drives. The RAID 1 logical drives must have the same stripe size. Configure RAID 30 by spanning two contiguous RAID 3 logical drives. The RAID 3 logical drives must have the same stripe size. Configure RAID 50 by spanning two contiguous RAID 5 logical drives. The RAID 5 logical drives must have the same stripe size. Cont'd Chapter 4 MegaRAID Manager 77

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Chapter 4 MegaRAID Manager
77
Using View/Add Configuration,
Continued
Step
Action
5
Press <F10> to configure logical drives. The logical drive configuration screen appears:
The window at the top of the screen shows the logical drive that is currently being
configured as well as any existing logical drives. The column headings are:
LD
The logical drive number
RAID
The RAID level
Size
The logical drive size
#Stripes
The number of stripes (physical drives) in the associated physical
array
StrpSz
The stripe size
Drive-State
The state of the logical drive
6
Set the RAID level for the logical drive. Highlight
RAID
and press <Enter>. The
available RAID levels for the current logical drive are displayed. Select a RAID level and
press <Enter> to confirm. See the
MegaRAID Hardware Guide
for your board for an
explanation of the RAID levels.
7
Set the spanning mode for the current logical drive. Highlight
Span
and press <Enter>.
The choices are:
CanSpan
Array spanning is enabled for the current logical drive. The drive
can occupy space in more than one array.
NoSpan
Array spanning is disabled for the current logical drive. The drive
can occupy space in only one array.
For two arrays to be spannable, they must have the same stripe width (they must contain
the same number of physical drives) and must be consecutively numbered. For example,
assuming Array 2 contains four disk drives, it can be spanned only with Array 1 and/or
Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria for
spanning are not met, the
Span
setting makes no difference for the current logical drive.
Highlight a spanning option and press <Enter>.
Configuring RAID 10, RAID 30, or RAID 50 Logical Drives
Configure RAID 10 by spanning two contiguous RAID 1 logical drives. The RAID 1
logical drives must have the same stripe size.
Configure RAID 30 by spanning two contiguous RAID 3 logical drives. The RAID 3
logical drives must have the same stripe size.
Configure RAID 50 by spanning two contiguous RAID 5 logical drives. The RAID 5
logical drives must have the same stripe size.
Cont’d