Lenovo ThinkServer RD650, User Manual

Page: 180 / 418

LSI Corporation
- 180 -
12Gb/s MegaRAID SAS Software User Guide

March 2014
Chapter 6: StorCLI
Working with the Storage Command Line Tool
[wt|*wb |awb] [nora|*ra] [*direct|cached] [Strip=<8|16|32|64|128|256|1024>] [AfterVd= X ] [Spares =
[ e :] s |[ e :] s - x |[ e :] s - x , y ] [force]
Table 48 Add RAID Configuration Input Options
Input example:
Option Value Range Description
raid [0|1|5|6|00|10|50|60]
. Sets the RAID type of the configuration.
size
Maximum size based on the physical drives
and RAID level. Sets the size of each virtual drive. The default value
is for the capacity of all referenced disks.
name
15 characters of length. Specifies the drive name for each virtual drive.
drives
Valid enclosure number and valid slot numbers
for the enclosure. In
e : s | e : s - x | e : s - x , y
:

e
specifies the enclosure ID.

s
represents the slot in the enclosure.

e : s - x
- is the range convention used to
represent slots
s
to
x
in the enclosure
e
(250
characters max.).
NOTE Make sure that the same block size (in a
physical drive) is used in each [
e
:
s
] pair. As an
example, if you use 4096 bytes in the
e0
:
s0
pair, use
4096 bytes in the
e1
:
s1
pair too. Mixing of block
sizes between the [
e
:
s
] pairs is not supported.
pdperarray
1-16. Specifies the number of physical drives per array.
The default value is automatically chosen.
sed
— Creates security-enabled drives.
pdcache on|off|default.
Enables or disables PD cache.
pi
— Enables protection information.
dimmerswitch default
: Logical device uses controller
default power-saving policy.
automatic
(
auto
): Logical device power
savings are managed by firmware.
none
: No power-saving policy.
maximum
(
max
): Logical device uses maximum
power savings.
MaximumWithoutCaching
(
maxnocache
):
Logical device does not cache write to
maximize power savings.
Specifies the power-saving policy.
Sets to default automatically.
direct|cached cached
: Cached I/O.
direct
: Direct I/O.
Sets the logical drive cache policy.
Direct I/O is the default.
wt|wb|awb wt
: Write through.
wb
: Write back.
awb
: Always
Write Back.
Enables write through.
Write back is the default.
nora|ra ra
: Read ahead.
nora
: No read ahead. Disables read ahead.
Enabled is the default.
cachevd
— Enables SSD caching on the created virtual drive.
strip 8
,
16
,
32
,
64
,
128
,
256
,
512
,
1024
. Sets the strip size for the RAID configuration.
aftervd
Valid virtual drive number. Creates the VD in the adjacent free slot next to the
specified VD.
spares
Number of spare physical drives present. Specifies the physical drives that are to be assigned
to a disk group for spares.
force
— Forces a security-capable physical drive to be added
to a drive group without security.