Multinode Modular Cluster Hardware Specification¶
Virtual machine requirements are specified in the table below.
| Node type | Quantity | VM | Memory | CPU | Disk | Network |
|---|---|---|---|---|---|---|
| Application | 3 | >= VMware 5.1 | 16 GB with 16 GB reservation | 4 vCPU @ 2 GHz with 4000 MHz reservation |
|
1 Gbit/s minimum |
| Database | 3 | >= VMware 5.1 | 32 GB with 32 GB reservation | 4 vCPU @ 2 GHz with 4000 MHz reservation | 380 GB partitioned:
|
1 Gbit/s minimum |
| WebProxy | 2 | >= VMware 5.1 | 4 GB with 4 GB reservation | 2 vCPU @ 2 GHz with no reservation | 70 GB partitioned:
|
1 Gbit/s minimum |
For Memory and CPU, the Resource Allocation Reservation on VMware is indicated in the table. Hyperthreading is supported.
The OS disk requirement is fixed and logs are rotated to ensure that 10 GB is sufficient. 40 GB for an applications role node is a generous allocation and the size will not have to be increased with the number of users.
The Database storage partition is sized to support 250 K users. Database backups are compressed and the partition is sized to ensure that sufficient space is available to support backup of 250 GB database.
Note
To change the TRANSACTION_LOG cap size to greater than 10GB at larger providers for operational reasons, for example for diagnostics, the voss db_collection_cap TRANSACTION_LOG <10-50GB> command can be used from the command line.
Refer to Database Commands for more details.
The resize operation will impact the usage on the size of the disk allocated for the database (typically, 250GB is reserved upon installation). Consider a larger database disk size allocation upon installation if a larger cap size is set.
The backup disk should be Thick Provisioned and Eager Zeroed for better performance immediately after installation.
Web Proxies are optional, but if Web Proxies are used, then they form part of the cluster to allow sharing of static data and other content as needed (for example, themes).
To set up the disk requirements, the disk should be set up on the VMware GUI Resources tab where a disk can be created. This task should be done after the OVA import but prior to the boot of the system.
For VMware details, refer to VMware Support.
