1. User's Guide
  2. Using the CellCLI Utility
  3. CellCLI Command Reference
  4. CREATE
  5. CREATE CELL

7.7.4.1 CREATE CELL

Purpose

The CREATE CELL command creates a cell object and assigns initial attributes to the object.

Syntax

CREATE CELL [name]
   [ interconnect1=intValue1 ] [, interconnect2=intValue2 ...]
   [, attributeName = attributeValue  ...]

Usage Notes

The attributes that can be set are shown as modifiable in Example 7-97.

  • This command can be used to assign the ASR value to the snmpSubscriber attribute.

    When specifying the snmpSubscriber attribute, the community name cannot contain spaces or the following characters: = ' " \ / < >

  • The default cell name is set to the network host name of the cell with hyphens in the network name replaced with underscores. You can display the network name with the uname -n command. If you change the cell name, then you must choose a unique cell name.

  • One to four interconnects can be specified. The interconnect1 attribute must be specified if the interconnect2 attribute is specified. The interconnect1 and interconnect2 attributes must be specified if interconnect3 is specified, and so on.

  • By default, the CREATE CELL command creates Exadata Smart Flash Cache and the associated cell disks.

    You can specify FLASHCACHE=0 to bypass default creation of Exadata Smart Flash Cache. A non-zero value specifies the total size for creating Exadata Smart Flash Cache. The size is divided evenly across the flash LUNs.

  • By default, the CREATE CELL command creates Exadata Smart Flash Log and the associated cell disks.

    You can specify FLASHLOG=0 to bypass default creation of Exadata Smart Flash Log. A non-zero value specifies the total size for creating Exadata Smart Flash Log. The size is divided evenly across the flash LUNs.

  • On Exadata X8M and X9M storage server models that are equipped with Persistent Memory (PMEM), the CREATE CELL command automatically creates PMEM cache, PMEM log, and the associated cell disks.

    Note:

    Oracle Exadata System Software release 23.1.0 introduces Exadata RDMA Memory (XRMEM). XRMEM represents the collection of Exadata software technologies that provide direct access to storage server memory using Remote Direct Memory Access (RDMA), enabling faster response times and lower read latencies. In this release, the persistent memory data accelerator, previously known as PMEM cache, is now called XRMEM cache. Likewise, the persistent memory commit accelerator, previously known as PMEM log, is now called XRMEM Log.

  • Starting with Exadata X10M, on storage server models equipped to support Exadata RDMA Memory Cache (XRMEM cache), the CREATE CELL command automatically creates the XRMEM cache.

  • The CREATE CELL eighthRack 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 CREATE 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.

  • Starting with Oracle Exadata System Software release 19.1.0, the httpsAccess attribute can be used to specify a list of IP addresses or IP subnet masks that control who can access the RESTful service via HTTPs. The value you specify for httpsAccess overwrites any previous value. You can use the following values for httpsAccess:

    • ALL — to allow access to all hosts (Default)
    • NONE — to disable the HTTPs port completely
    • IP1, IP2,..., IPn — to only allow access to hosts with IP addresses IP1, IP2,..., IPn where IPn is a valid IP address in IPv4, IPv4 subnet, IPv6 or IPv4-embedded IPv6 format. You can specify a maximum of 512 IP addresses for the access control list.

    Additionally, instead of a single IP address, you can use the / character to specify a range of IP addresses using a subnet mask. For example the range '192.168.10.0/24' corresponds to hosts having IP addresses from 192.168.10.1 to 192.168.10.255. If you specify an IP address range, you need to enclose the IP address string in quotes.

Examples

Example 7-76 Creating a Cell

This example shows how to create a cell. In the example, the interconnections are set to an existing InfiniBand Network Fabric connection. 

CellCLI> CREATE CELL cell22 interconnect1=bondib0

Example 7-77 Creating an Eighth Rack Configuration

This example shows how to create a cell in an Eighth Rack configuration. 

CellCLI> CREATE CELL eighthRack=true

Example 7-78 Creating a Cell with Restricted HTTPs Access

This example shows how to create a cell that allows HTTPs port access only from hosts having IP addresses in the range 192.168.10.1 to 192.168.10.255.

CellCLI> CREATE CELL httpsAccess='192.168.10.0/24'

Related Topics

Parent topic: CREATE