Lenovo ThinkServer RD240 MegaRAID SAS Software User Guide - Page 177

Table 5.3 Controller Parameters (Cont.) Description Displays information about the controller, including cluster state, BIOS, alarm, firmware version, BIOS version, battery charge counter value, rebuild rate, bus number/device number, present RAM, memory size, serial number of the board, and SAS address. 5.4.2 Display Number of Controllers Supported Use the command in Table 5.3 to display the number of controllers supported on the system. Table 5.4 Number of Controllers Supported Convention Description MegaCli -AdpCount Displays the number of controllers supported on the system and returns the number to the operating system. 5.4.3 Enable or Disable Automatic Rebuild Use the command in Table 5.5 to turn automatic rebuild on or off for the selected controller(s). If you have configured hot spares and enabled automatic rebuild, the RAID controller automatically tries to use them to rebuild failed drives. Automatic rebuild also controls whether a rebuild will start when a drive that was part of the drive group is reinserted. Table 5.5 Enable or Disable Automatic Rebuild Convention Description MegaCli -AdpAutoRbld -Enbl|-Dsbl|-Dsply -aN|-a0,1,2|-aALL Enables or disables automatic rebuild on the selected controller(s). The -Dsply option shows the status of the automatic rebuild state. 5.4.4 Flush Controller Cache Use the command in Table 5.6 to flush the controller cache on the selected controller(s). This option sends the contents of cache memory to the virtual drive(s). If the MegaRAID system must be powered down rapidly, you must flush the contents of the cache memory to preserve data integrity. Table 5.6 Cache Flush on Selected Controller Convention MegaCli -AdpCacheFlush -aN|-a0,1,2|-aALL Controller Property-Related Options 5-7