BMC Atrium Discovery is supplied as a virtual appliance and a kickstart DVD image. To install a virtual appliance, see Installing the virtual appliance.

Installing from the kickstart DVD

To install BMC Atrium Discovery from a kickstart DVD, first download the kickstart DVD image from the BMC Electronic Product Distribution (EPD) site. The image is large, so when writing the image to a physical DVD, ensure that you use a dual layer DVD and burner.

The kickstart DVD can be used to install BMC Atrium Discovery on certain customer supplied hardware. See prerequisites.

Third party software

BMC Atrium Discovery is built as an appliance that is not intended to have any additional software installed on it. If you have an urgent business need to install additional software on the appliance, read the third party software support page.

No OS customizations are supported on the appliance

The BMC Atrium Discovery software is delivered as an appliance model (either virtual or physical), and includes the entire software stack from a Linux OS to the BMC application software. The OS must not be treated for general purpose use, but rather as a tightly integrated part of the BMC Atrium Discovery solution. As such, customizations to the OS should only be made at the command line level if explicitly described in this online documentation, or under the guidance of BMC Customer Support. If you have an urgent business need to change any OS configuration, you must contact BMC Customer Support before doing so.

Unsupported options

As part of the OS installation you are presented with options that are not supported as part of BMC Atrium Discovery. For example:

  • Encrypt disks option in the partitioning screens
  • Advanced Storage options.

These are not supported.

Prerequisites

Before installing BMC Atrium Discovery from the kickstart DVD, you should ensure that you satisfy the following prerequisites:

  • You must be an experienced Linux system administrator.
  • You must have read the Hardware requirements page for clusters, and for standalone appliances, the sizing guidelines documentation for the current version of the product, included Appliance sizing guidelines below.
  • You must be installing on x86-64 based hardware that is supported by Red Hat Enterprise Linux 6 (64-bit only).
  • If you intend to run BMC Atrium Discovery in FIPS compliant mode, you must read Running in FIPS compliant mode.

A facility for installation on a 32 bit machine is not available.

Appliance sizing guidelines 

There are many factors to be taken into consideration when specifying the configuration of the appliance. Every environment is different and consequently the data published here is purely a guide as to how to configure your appliance.

 Click here for detailed information on determining the required specification for your appliance.

There are many factors to be taken into consideration when specifying the configuration of the appliance. Every environment is different and consequently the data published here is purely a guide as to how to configure your appliance.

The following initial guidelines are based on typical deployments of standalone systems in the field, and are intended to serve only as recommended configurations for your environment.

This section defines four "classes" of appliance deployment that broadly follow how BMC Atrium Discovery is deployed in the field. They are differentiated by how many Operating System Instances (OSIs) that are being scanned by BMC Atrium Discovery. The names given to these classes are of use only in this document and do not relate to the various editions that BMC Atrium Discovery is available in.

The classes are:

  • Proof of Concept. Small, time-limited test deployments of BMC Atrium Discovery, scanning up to 150 OSIs.
  • Baseline. A typical baseline as offered by BMC. Scanning up to 500 OSIs.
  • Datacentre. A typical large scale deployment. Scanning up to 5000 OSIs.
  • Consolidated Enterprise. Enterprise scale deployments, typically a Consolidation Appliance taking feeds from many Scanning Appliances. Typically scanning or consolidating of the order of 20000 OSIs or more. At these levels, a weekly scanning or focused scanning strategy may need to be adopted.

Proof of Concept

The Proof of Concept class has minimal storage allowance as they are only intended for a limited period of scanning such as a week long trial. For longer periods or a continuously used development or UAT system, the Baseline class is the minimum recommended.

Memory and swap considerations

The recommended figures for memory provide a good level of performance in typical scenarios. The upper level should not be considered a limit, as BMC Atrium Discovery will make use of all available memory. You can determine whether additional memory is needed in your appliance by monitoring swap usage.

If RAM is available, the OS uses some as a filesystem cache which dramatically improves datastore performance. As datastore files grow then a correspondingly large increase in RAM is required to maintain levels of performance. In many cases, the datastore files are very large, of the order of 10 to 100 GB. For example, for a large datastore, performance improvements have been seen by increasing RAM from 32 GB to 128 GB and further still to 256 GB.

The recommended figures for swap can be exceeded; there is no harm in doing so, and having more swap can mean more RAM is available for buffers and caches, improving performance. All virtual appliances are initially configured with 8 GB swap.

Memory and swap usage

Memory and swap usage depends on the nature of the discovery being performed, with Mainframe and VMware (vCenter/vSphere) devices requiring more than basic UNIX and Windows devices.

Where the following tables refer to CPUs, full use of a logical CPU (core) is assumed. For example, if eight CPUs are required, then you may provide them in the following ways:

  • Eight virtual CPUs in your virtualization platform, such as VMware Infrastructure.
  • Four dual core physical CPUs.
  • Two quad core physical CPUs.

Appliance sizing guidelines

Resource

POC

Baseline

Datacentre

Consolidated Enterprise

CPUs

2

2

4

4 to 8

RAM
(GB) available to OS.

2 to 4
(see note below)

4 to 8

8 to 16

16 to 32 or more

Swap Space
(GB)

4 to 8

8 to 16

16 to 32

16 to 32

DB Disk (GB) - No backup

37

100

200

200 to 660

DB Disk (GB) - With local backup

37

200

400

450 to 1300

The disk configuration utility uses the following calculation to determine the best swap size.

  • Where the amount of memory is less than 16 GB swap size is set at double the memory size.
  • Where the amount of memory is between 16 and 32 GB swap is set at 32 GB.
  • Where the amount of memory exceeds 32 GB swap is set to equal them memory.

The disk requirement with local backup is lower than in previous versions as the appliance backup feature does not use as much disk space as appliance snapshot when creating the backup.

Memory requirements for POC class

2GB RAM is sufficient for normal operation, but is insufficient to activate a new TKU. To activate a TKU requires 4GB of RAM. You can increase the memory for activation and then reduce it for normal operation if required.

BMC recommend that for the best performance, you use two logical disks. For single disk installations your sizing calculations should be based on the size of the database (see the table above) plus the size of the OS disk (146 GB).

Installing BMC Atrium Discovery

Partitioning destroys all data on disks

Installing BMC Atrium Discovery involves partitioning your disks. Partitioning disks destroys any data on those disks. You should understand partitioning before installing BMC Atrium Discovery.

To install BMC Atrium Discovery from a kickstart DVD:

  1. Boot your host using the kickstart DVD. See the documentation supplied with the hardware platform for information on this.
    You are presented with a splash screen which enables you to select installer options (press F2 to see more information). The options are:
    • install to install on a system configured as specified in Appliance hardware platforms. This option performs an installation that completely overwrites any data on the system, and enables you to set network configuration, keyboard layout, language and timezone. BMC Atrium Discovery will always be installed onto the first disk. Additional disks can be configured from the BMC Atrium Discovery UI when the install is complete.
    • custom This option enables you to customize disk partitioning, but is otherwise identical to the install option. Always use the install option in preference to the custom option, even if you have multiple disks. Should you use custom to create a non-standard disk layout, the Disk Configuration feature will not be able to manage BMC Atrium Discovery storage. When using the custom option, ensure that the /boot partition is 250 MB as in the default partitioning scheme.

      Unsupported boot options

      At this stage you can specify boot options if, for example, you want to customize the install. However, this is not supported. See the Red Hat Enterprise Linux documentation for information on boot options.

  2. Enter one of the supported options at the boot: prompt and press enter. The Red Hat Enterprise Linux installer starts.
  3. If you have more than one network interface, you are prompted to choose one. Select the first ethernet device, eth0, and click OK.
  4. When the TCP/IP configuration screen is displayed, enter the required networking information and click OK. If you select manual configuration, one or more further configuration screens will be presented. Provide the requested information.
  5. If the disks are not recognized or have never been partitioned, a partitioning table warning is displayed. Click Yes to proceed.
  6. When prompted for the language to use during installation, select English.
  7. When prompted, choose the appropriate keyboard for the system.
  8. When the time zone configuration screen appears:
    • Tick the "System clock uses UTC" option.
    • Select the correct time zone.
  9. If you selected the custom option, use the following steps to configure the disks.

    Non standard disk configuration

    These custom install instructions will result in a valid disk layout identical to that created by the install option. The disk configuration utility cannot be able to manage disks if volume groups or a non standard disk configuration are used.

    1. Select the Replace Existing Linux System(s) installation type.
    2. Do not select the Encrypt system option.
    3. Select the Review and modify partitioning layout option.
    4. Click next. On the storage device selection screen, select the first disk, and click the right arrow to move it into the Install Target Devices list.
    5. Click next. The Review Partitioning screen is displayed.

      Partitioning destroys all data on disks.

    6. Delete the volume group shown beneath LVM Volume Groups or create the partitions in this volume using the sizes described in the table below as a guide. If you do not delete the LVM volume group, you will not be able to use the disk configuration utility to manage disks.
    7. If you have deleted the LVM volume group, delete all remaining partitions on all disks and enter the following partition information for the first disk:

      Mountpoint

      Type

      Size (MB)

       

      swap

      16384
      See Appliance sizing guidelines for information on recommended swap size.

      /boot

      ext4

      250

      /var

      ext4

      1768

      /var/log

      ext4

      896

      /var/log/audit

      ext4

      896

      /tmp

      ext4

      2048

      /home

      ext4

      1536

      /

      ext4

      1024

      /usr

      ext4

      100 (Fill to maximum allowable space.)

    8. If you have more than one disk, do not configure them at this time. Instead use the disk configuration utility when you have installed BMC Atrium Discovery.
  10. The partitioning and installation of the OS and BMC Atrium Discovery begins. This might take some time.
  11. When the installation has completed, remove the DVD and click the Reboot button. The BMC Atrium Discovery banner displays networking information.
  12. The installation is now complete.
  13. If you have additional disks, use the disk configuration utility to configure them.
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