7.7.1.2.2 ALTER CELL Commands for Managing Exadata Storage Server Hardware

Syntax

ALTER CELL {
    RESTART BMC
  | LED {ON | OFF}
  | DONOTSERVICELED {ON | OFF [FORCE]}
  | CONFIGUREBMC
  | BBU { DROP FOR REPLACEMENT | REENABLE }
  | attribute_name = attribute_value [, attribute_name = attribute_value]...
  }

Usage Notes

The following table lists the arguments and options for the ALTER CELL commands that perform Exadata storage server hardware management operations:

Argument	Options	Description
RESTART BMC	none	Restarts the Baseboard Management Controller (BMC).
LED	ON OFF	LED ON and LED OFF operations turn on and off the Fault-Service Required LED. You can manually light the LED to indicate that a cell requires maintenance. The LED also turns on automatically if a component fails.
DONOTSERVICELED	ON OFF	Turns the Do Not Service LED on and off. This LED is available with Oracle Exadata Database Machine X7 and later models.
CONFIGUREBMC	none	Configures the BMC for hardware alerts to the local cell so that Management Server (MS) can pick up the alerts.
BBU	DROP FOR REPLACEMENT REENABLE	BBU DROP FOR REPLACEMENT drops the hard disk controller battery-backed unit (BBU). BBU REENABLE re-enables the BBU.

The following are additional usage notes for the ALTER CELL commands that perform storage server hardware management:

• The ALTER CELL BBU DROP FOR REPLACEMENT command is run prior to replacement of a hard disk controller battery. The command changes the caching policy from writeback to writethrough, and turns on the locator LED. The new battery is enabled automatically.

• The ALTER CELL BBU REENABLE command is run when a battery is removed and then the same battery is re-inserted. The command changes the caching policy from writethrough to writeback, and turns off the locator LED.

Attributes Related to Hardware Management

• The bbuLearnCycleTime attribute is used to set the start time for the battery learn cycle. After the learn cycle has completed, the attribute reverts to its default quarterly cycle.

• The bbuLearnSchedule attribute is used to set the next battery learn cycle. The following parameters are used with the bbuLearnSchedule attribute:

  • month: Values are 1 through 12. The month entered must be within the current month and the next three months. For example, if the bbuLearnSchedule attribute is set in February, then the months could be February, March, April or May.
  • week: Values are 1 through 5. The value 1 represents the first week of the month, 2 represents the second week, and so on. The week value must be specified when specifying month and day.
  • day: Values are 1 through 7. The value 1 represents Sunday, 2 represents Monday, and so on. The day value must be specified when specifying month and week.
  • date: Values are 1 through 31. The values represent the days of the month. The default date is 17.
  • hour: Values are 0 through 23. The value 0 represents 12:00 a.m., 1 represents 1:00 a.m., and so on.
  • minute: Values are 0 to 59. The values represent the minutes in an hour.
  • second: Values are 0 to 59. The values represent the seconds in a minute.

• The ALTER CELL eighthRack=true command enables or disables an Eighth Rack configuration on Oracle Exadata Database Machine X3-2 Quarter Racks or later. The options are true to enable the Eighth Rack configuration, and false to disable the Eighth Rack configuration. The ALTER CELL eighthRack=true command requires that there are no cell disks because enabling the Eighth Rack configures only half of the hard disks and flash capacity. After using this command you must restart Cell Server (CELLSRV) to make the new changes effective and prevent unexpected results.

Examples

Example 7-4 Setting the Cell LED Off and On

This example shows how to set the Fault-Service Required LED on and off for the cell.

CellCLI> ALTER CELL LED OFF
CellCLI> ALTER CELL LED ON

Example 7-5 Setting the Battery Learn Cycle

This example shows how to schedule for the battery learn cycle. In this example, the command sets the battery learn cycle to occur January 17 3:00:59, and then the following learn cycles are April 17 3:00:59, July 17 3:00:59, and October 17 3:00:59. The default setting is "MONTH 1 DATE 17 HOUR 2 MINUTE 0."

CellCLI> ALTER CELL bbuLearnSchedule = "MONTH 1 HOUR 3 SECOND 59"