On next Monday August 5th 2019 starting at 7am CEST we will conduct some maintenance. You might encounter some issues using the Exasol User Portal and Issue Tracker! We will restore the Exasol User Portal and Issue Tracker before 9am CEST on Monday August 5th 2019.
- EXASuite only runs on 64-bit Intel platforms with SSSE3 featured CPUs (Xeon Woodcrest upwards).
- Firmware Interface
- EXASuite currently only supports the classic Basic Input/Output System (BIOS) firmware interface. Deactivate the Unified Extensible Firmware Interface (UEFI) if applicable.
- Depending on the network topology (see Network Planning), the servers need to be equipped with two or more dedicated 1- or 10-Gbit Ethernet network interface cards.
- Intel network chipsets are known to work best although chipsets from other manufacturers may work as well.
- Storage Subsystem
- SAS (Serial Attached SCSI) is the preferred bus technology and hard drive interface
- SSDs (Solid-State Drives) are supported but not certified.
- Use of hardware RAID controllers with RAID-1 pairs (mirroring) is recommended for added hardware reliability in the case of a failure
- The more spindles EXAStorage has, the more parallelism there will be on read write operations
- Out-of-band Management
- The preferred protocol to connect to Lights-out-Management interfaces is IPMI (Intelligent Platform Management Interface, version 2.0).
- Enterprise license recommended
Cluster Node Requirements
EXASolution clusters are composed of one or more database nodes and at least one management node (called "license server"). Database nodes are the powerhouse of a cluster and operate both the EXASolution instances as well as the EXAStorage volumes.
Database nodes are expected to be equipped with homogeneous hardware. EXASolution and EXAStorage are designed and optimized to distribute processing load and database payload equally across the cluster. Inconsistent hardware (especially differences in RAM and disk sizes) may cause undesired effects, ranging from poor performance to service disruptions.
License servers are the only nodes of a cluster that boot from local disk. They are installed from an EXASuite installation ISO image.
Database servers are installed and booted from the license server over the network via PXE (DHCP + TFTP).
Note on CPU: The clock speed and number of cores you need for your system depend heavily on the planned workload. An analytic batch system benefits faster CPUs while a higher number of cores is recommended for systems with many parallel processes (concurrent connections).