You can install BMC Discovery by using a virtual appliance or a kickstart DVD. To install BMC Discovery from a kickstart DVD, first download the kickstart DVD image from the BMC Electronic Product Distribution (EPD) site. The image is large. Therefore, make sure that you use a dual layer DVD and burner when writing the image to a physical DVD. Before Installing using the DVD, make sure that you read the prerequisites. For more information about installing on virtual appliance, see Installing the virtual appliance.
No OS customizations are supported on the appliance The BMC Discovery software is delivered as an appliance model, virtual or physical, which includes the entire software stack from a Linux OS and the BMC application software. The OS must not be treated for general purpose use, but rather as a tightly integrated part of the BMC Discovery solution. If you need to customize the OS, you must use the command line level if explicitly described in this online documentation, or under the guidance of BMC Customer Support. For any urgent business need to change the OS configuration, contact BMC Customer Support. Third party software BMC 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, see the third party software support page.
No OS customizations are supported on the appliance
The BMC Discovery software is delivered as an appliance model, virtual or physical, which includes the entire software stack from a Linux OS and the BMC application software. The OS must not be treated for general purpose use, but rather as a tightly integrated part of the BMC Discovery solution. If you need to customize the OS, you must use the command line level if explicitly described in this online documentation, or under the guidance of BMC Customer Support. For any urgent business need to change the OS configuration, contact BMC Customer Support.
Third party software
BMC 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, see the third party software support page.
Before installing BMC Discovery from the DVD, make sure that you fulfill the following prerequisites:
Before running BMC Discovery in FIPS compliant mode, you must read Running in FIPS compliant mode.
You might need to consider many factors 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.
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.
This section defines four classes of appliance deployment, which broadly follow how BMC Discovery is deployed in the field. These classes are differentiated by the number of Operating System Instances (OSIs) that are being scanned by BMC Discovery. The names given to these classes are of use only in this document and do not relate to the various editions of BMC Discovery. The four classes are:
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.
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 Discovery will make use of all available memory. Note that the operating system will often make use of some swap, even if there is plenty of RAM available – the use of swap is not in itself a sign that there is insufficient RAM, just a consequence of the operating system optimizing all of its memory resources.
If RAM is available, the OS uses some as a filesystem cache which dramatically improves system performance. As datastore files grow then a correspondingly large increase in RAM can help 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 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:
4 to 8
2 to 4
4 to 8
8 to 16
16 to 32 or more
4 to 8
8 to 16
16 to 32
16 to 32
DB Disk (GB) - No backup
200 to 660
DB Disk (GB) - With local backup
450 to 1300
The disk configuration utility uses the following calculation to determine the best swap size.
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 recommends that for best performance, you use two logical disks. For single disk installations, your sizing calculations must be based on the size of the database plus the size of the OS disk (146 GB).
Partitioning destroys all data on disks
Installing BMC Discovery involves partitioning your disks. Partitioning disks destroys any data on those disks. Therefore, you must understand partitioning before installing BMC Discovery.
To install BMC Discovery from a kickstart DVD:
installto 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 Discovery will always be installed onto the first disk. Additional disks can be configured from the BMC 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 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 CentOS documentation for information on boot options.
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.
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Partitioning destroys all data on disks.
Delete the volume group shown beneath LVM Volume Groups and delete all remaining partitions on all disks.
If you do not delete the LVM volume group, you will not be able to use the disk configuration utility to manage disks.
Create the partitions in this volume using the sizes described in the following table as a guide.
100 (Fill to maximum allowable space.)
The partitioning and installation of the OS and BMC Discovery begins. This might take some time.
9. When the installation has completed, remove the DVD and click Reboot. The BMC Discovery banner displays networking information. The installation is now complete. If you have more than one disk, configure them post-installation using the disk configuration utility.