Lenovo ThinkServer RD240 MegaRAID SAS Software User Guide - Page 196

5.10 Virtual Drive-Related Options You can use the commands in this section to select settings for the virtual drives and perform actions on them. 5.10.1 Display Virtual Drive Information Use the command in Table 5.36 to display virtual drive information for the selected controller(s). Table 5.36 Display Virtual Drive Information Convention Description MegaCli -LDInfo -Lx|-L0,1,2|-Lall -aN|-a0,1,2|-aALL Displays information about the virtual drive(s) on the selected controller(s). This information includes the name, RAID level, RAID level qualifier, capacity in megabytes, state, stripe size, number of drives, span depth, cache policy, access policy, and ongoing activity progress, if any, including initialization, background initialization, consistency check, and reconstruction. 5.10.2 Change the Virtual Drive Cache and Access Parameters Use the command in Table 5.37 to change the cache policy and access policy for the virtual drive(s) on the selected controller(s). Table 5.37 Change Virtual Drive Cache and Access Parameters Convention Description MegaCli -LDSetProp WT | WB [-Immediate]| RA |NORA | ADRA|- Cached|Direct|CachedBadBBU|NoCachedBadBBU} | -RW|RO|Blocked | {-Name nameString} | -EnDskCache|DisDskCache -Lx| -L0,1,2|-Lall -aN|-a0,1,2|- aALL Allows you to change the following virtual drive parameters: -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. -RW, -RO, Blocked: Selects access policy. -EnDskCache: Enables drive cache. -DisDskCache: Disables drive cache. 5-26 MegaRAID Command Tool