Lenovo ThinkServer RD240 MegaRAID SAS Software User Guide - Page 191

Add RAID 0

Page 191 highlights

Table 5.27 Create a Drive Group from All of the Unconfigured Drives (Cont.) Description Creates one RAID drive group out of all of the unconfigured good drives, and a hot spare, if desired. This is for RAID levels 0, 5, 6, 10, 50, or 60. All free drives are used to create a new drive group and, if desired, one hot spare drive. -Rx[E0:S0,...]: Specifies the RAID level and the drive enclosure/slot numbers used to construct a drive group. -WT (Write through), WB (Write back): Selects write policy. -NORA (No read ahead), RA (Read ahead), ADRA (Adaptive read ahead): Selects read policy. -Direct, -Cached: Selects cache policy. -CachedBadBBU|NoCachedBadBBU: Specifies whether to use write cache when the BBU is bad. Hsp: Specifies drive to make the hot spare with. -Force: Specifies that drive coercion is used to make the capacity of the drives compatible. Drive coercion is a tool for forcing drives of varying capacities to the same capacity so they can be used in a drive group. 1. NOTE: Previously -szXXX expressed capacity in Mbytes but now you can enter the capacity in your choice of units. For example, to create a virtual drive of 10 Gbytes, enter the size as sz10GB. If you do not enter a unit, by default it is considered as Mbytes. 5.9.2 Add RAID 0, 1, 5, or 6 Configuration Use the command in Table 5.28 to add a RAID level 0, 1, 5, or 6 configuration to the existing configuration on the selected controller. For RAID levels 10, 50, or 60, see Section 5.9.3, "Add RAID 10, 50, or 60 Configuration." Table 5.28 Add RAID 0, 1, 5, or 6 Configuration Convention MegaCli -CfgLDAdd -R0|-R1|-R5|-R6[E0:S0,E1:S1,...] [WT | WB] [NORA | RA | ADRA] [Direct | Cached] [CachedBadBBU|NoCachedBadBBU] [-szXXXXXXXX [-szYYYYYYYY [... ]]] [-strpszM] [-Hsp[E5:S5,...]] [-afterLdX] -aN Configuration-Related Options 5-21

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Configuration-Related Options
5-21
5.9.2
Add RAID 0, 1, 5, or 6 Configuration
Use the command in
Table 5.28
to add a RAID level 0, 1, 5, or 6
configuration to the existing configuration on the selected controller.
For RAID levels 10, 50, or 60, see
Section 5.9.3, “Add RAID 10, 50, or
60 Configuration.”
Description
Creates one RAID drive group out of all of the unconfigured good drives, and a hot
spare, if desired. This is for RAID levels 0, 5, 6, 10, 50, or 60. All free drives are
used to create a new drive group and, if desired, one hot spare drive.
-Rx[E0:S0,...]
: Specifies the RAID level and the drive enclosure/slot numbers
used to construct a drive group.
-WT
(Write through),
WB
(Write back): Selects write policy.
-NORA
(No read ahead),
RA
(Read ahead),
ADRA
(Adaptive read ahead): Selects read
policy.
-Direct
,
-Cached
: Selects cache policy.
-CachedBadBBU|NoCachedBadBBU
: Specifies whether to use write cache when the
BBU is bad.
Hsp
: Specifies drive to make the hot spare with.
-Force
: Specifies that drive coercion is used to make the capacity of the drives
compatible. Drive coercion is a tool for forcing drives of varying capacities to the
same capacity so they can be used in a drive group.
1.
NOTE: Previously
-szXXX
expressed capacity in Mbytes but now you can enter
the capacity in your choice of units. For example, to create a virtual drive of 10
Gbytes, enter the size as sz10GB. If you do not enter a unit, by default it is con-
sidered as Mbytes.
Table 5.27
Create a Drive Group from All of the Unconfigured Drives (Cont.)
Table 5.28
Add RAID 0, 1, 5, or 6 Configuration
Convention
MegaCli –CfgLDAdd -R0|-R1|-R5|-R6[E0:S0,E1:S1,...] [WT | WB] [NORA |
RA | ADRA] [Direct | Cached] [CachedBadBBU|NoCachedBadBBU]
[-szXXXXXXXX [-szYYYYYYYY [... ]]] [-strpszM] [–Hsp[E5:S5,...]]
[–afterLdX] -aN