As with any memory-, CPU-, or disk-intensive, sophisticated application, CA Spectrum is susceptible to its operating environment. This environment breaks down broadly into the following categories:
The minimum hardware requirements for the major CA Spectrum components are described in the respective installation sections. For large deployments with relatively low-cost system hardware resources, you can minimize the potential of exhausting physical resource capacity. We recommend the following hardware for a heavily loaded CA Spectrum Component:
SpectroSERVER or OneClick Server
Spectrum Report Manager Server
The minimum hardware requirements for Spectrum Report Manager and SpectroSERVER or OneClick are the same, except for the available disk space. Given the historical data storage nature of Spectrum Report Manager, disk space is a major consideration. For more information, see Spectrum Report Manager.
In a virtual environment, you can share resources to maximize your return on hardware investment. However, CA Spectrum reacts to network conditions in real time. As a result, the product requires CPU resources, memory resources, and disk speeds to be running at optimal capacity. If any one of these resources is affected because of another virtual machine, CA Spectrum performance is affected. Therefore, we recommend running CA Spectrum with CPU and memory resources that are dedicated 100 percent of the time. If you are using a storage area network, use the performance requirements that we recommend in the Hardware section.
As a best practice for virtual machines that are used for CA Spectrum, dedicate system resources as specified in the Hardware section. For VMware environments, consider the following points:
Basic Configuration for VMware
Set the following values from the Hardware tab on the Edit Settings dialog:
Additional Configuration for VMware
If a VM contention affects the ESX server, set the following values from the Resources tab on the Edit Settings dialog:
Note: When a VM is migrated (vMotion) in VMware, then the spectrumgtw probe picks the changes and sends to CA Spectrum. The changes are shown in the CA Spectrum hierarchy. The reflection time for the changes in CA Spectrum hierarchy is based on the frequency at which UIM vmware probe publishes the changes to CA UIM. This functionality is supported for both legacy integration and integration through spectrumgtw probe.
The individual CA Spectrum processes cannot use more than 16 GB (Minimum 8 GB). However, it is best to run CA Spectrum on 64-bit variants of supported operating systems. On 64-bit variants, processes can take advantage of 16 GB (Minimum 8 GB) RAM.
The ideal environment for the CA Spectrum servers is one in which they are not contending for resources with other processes. Moreover, avoid or thoroughly test some environments as they impact affect the performance of CA Spectrum. Such environments include Antivirus, Security software, and Backup utilities.
Also check for Automatic disk backups, operating-system backups, automatic antivirus scans, and network security scans, which affect the performance of CA Spectrum. These processes place temporary locks on files to which CA Spectrum needs constant access. Therefore, they can lead to crashes and performance issues. This guidance applies to any hardware or virtual machine where a SpectroSERVER, Archive Manager, or SRM database is deployed.
Perform automatic disk backups, operating-system backups, and operating-system updates only after gracefully shutting down all CA Spectrum processes.
Configure antivirus scans to skip the CA Spectrum root directory. If a scan of the CA Spectrum root directory is required, run it with all CA Spectrum processes gracefully stopped.