Avago Technologies MegaRAID Fast Path Software - Manual (Page 272)

Page 272 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 5: MegaRAID Command Tool | Dimmer Switch-Related Options
5.22.4 Displays about Adding a RAID
Level to a Specified Adapter
Use the command in the following table to add a RAID level to a specified adapter.
Table 138: Adds a RAID Level to a Specified Adapter
Convention MegaCLI -CfgLdAdd -rX[E0:S0,E1:S1,...] [WT|WB] [NORA|RA|ADRA] [Direct|Cached]
[CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]] [-strpszM] [-Hsp[E0:S0,...]]
[-AfterLdX] [-Force] | [FDE|CtrlBased] [-Default| -Automatic| -None|
-MaximumWithCaching| -MaximumWithoutCaching] -aN
Description -CfgLdAdd : Adds a RAID level 0, 1, 5, or 6 to a specified adapter. Even if no configuration is present, you have the option to
write the configuration to the adapter.
The possible parameters follow:
Rx[E0:S0,...] : Specifies the RAID level and the physical drive enclosure/slot numbers to construct a disk array.
WT (Write through), WB (Write back): Selects write policy.
NORA (No read ahead), RA (Read ahead), ADRA (Adaptive read ahead): Selects read policy.
Cached -Direct : Selects cache policy.
[{CachedBadBBU|NoCachedBadBBU }] : Specifies whether to use write cache when the BBU is bad.
szXXXXXXXX : Specifies the size for the virtual disk, where XXXX is a decimal number of Mbytes. However, the actual size of
the virtual disk may be smaller, because the driver requires the number of blocks from the physical drives in each virtual disk
to be aligned to the stripe size. If multiple size options are specified, CT will configure the virtual disks in the order of the
options entered in the command line. The configuration of a particular virtual disk fails if the remaining size of the array is too
small to configure the virtual disk with the specified size. This option can also be used to create a configuration on the free
space available in the array.
strpszM : Specifies the strip size, where the strip size values are 8 MB, 16 MB, 32 MB, 64 MB, 128 MB, 256 MB, 512 MB, or 1024
MB.
Hsp[E5:S5,...] : Creates hot spares when you create the configuration. The new hot spares will be dedicated to the
virtual disk used in creating the configuration. This option does not allow you to create global hot spares. To create global hot
spares, you must use the -PdHsp command with the proper subcommands. You can also use this option to create a
configuration on the free space available in the virtual disk.
AfterLdX : This command is optional. By default, the application uses the first free slot available in the virtual disk. This
option is valid only if the virtual disk is already used for configuration.
Force : This option forces the creation of virtual disk in situations where the application finds that it is convenient to create
the virtual disk only with user's consent.
FDE|CtrlBased : If the controller supports the security feature, this option enables FDE/control-based encryption on the
virtual disk.
[-Default| -Automatic| -None| -MaximumWithCaching| -MaximumWithoutCaching] : If the controller
supports power savings on virtual disk, these options specify the possible levels of power savings that can be applied on a
virtual disk.