Asus SCSI 320-0 Global Array Manager Transition Tool - Page 35

Action, Configuring RAID 10, RAID 30, or RAID 50 Logical Drives, MegaRAID Hardware Guide, CanSpan

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Using View/Add Configuration, Continued Step Action 5 Press to configure logical drives. The logical drive configuration screen appears, as shown below: The logical drive that is currently being configured and any existing logical drives are displayed. 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 appear. 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 logical drive can occupy space in more than one array. NoSpan Array spanning is disabled for the current logical drive. The logical 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 they 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 met, MegaRAID automatically activates spanning. If the criteria 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 2 MegaRAID Configuration Utility 27

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Chapter 2 MegaRAID Configuration Utility
27
Using View/Add Configuration,
Continued
Step
Action
5
Press <F10> to configure logical drives. The logical drive configuration screen appears,
as shown below:
The logical drive that is currently being configured and any existing logical drives are
displayed. 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 appear. 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 logical drive can
occupy space in more than one array.
NoSpan
Array spanning is disabled for the current logical drive. The logical 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 they 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 met, MegaRAID automatically activates spanning. If the criteria 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