LSI SCSI 320-0 Configuration page 32

Using New Configuration,
Step
5 Press <F10> to configure logical drives. The logical drive configuration screen appears, as
shown below:
The window from 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
RAID
Size
#Stripes
StrpSz
Drive-State
6 Set the RAID level for the logical drive. Highlight RAID and press <Enter>. A list of the
available RAID levels for the current logical drive appears. 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 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 allows 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>.
8 Set the logical drive size. Move the cursor to Size and press <Enter>. By default, the
logical drive size is set to all available space in the array(s) being associated with the
current logical drive, accounting for the Span setting and for partially used array space.
For example, if the previous logical drive used only a part of the space in an array, the
current logical drive size is set to the remaining space by default.
MegaRAID Configuration Software Guide
24
Continued
Action
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated physical
array
The stripe size
The state of the logical drive
Cont'd