Avago Technologies MegaRAID Fast Path Software - Manual (Page 244)

Page 244 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 5: MegaRAID Command Tool | Configuration-Related Options
Table 73: Create a Drive Group from All of the Unconfigured Drives
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]
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, 1, 5, or 6. 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 the write policy.
-NORA (No Read Ahead), RA (Read Ahead), ADRA (Adaptive Read Ahead): Selects the read policy.
-Direct , -Cached: Selects the cache policy.
-CachedBadBBU|NoCachedBadBBU : Specifies whether to use write cache when the BBU is bad.
Hsp : Specifies the drive with which to make the hot spare.
-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.
NOTE: Previously, -szXXX expressed capacity in MB, but now you can enter the capacity in your choice of units. For
example, to create a virtual drive of 10 GB, enter the size as sz10GB. If you do not enter a unit, MB is the default unit.