CTA’s most recent platform model is the Generation 8, which is built on the Intel 1U 2-socket rack-mounted server. This platform uses a Dual Intel Sandy Bridge 2.0 GHz processor. It contains 16 GB of RAM and four 900 GB SAS drives configured in a RAID 5 with one hot spare.
For network interface ports, the server comes with four gigabit Ethernet ports on the motherboard. There is also an available IO module providing an additional 2-ports for 10GbE.
For network interface ports, the server comes with four gigabit Ethernet ports on the motherboard. There is also an available IO module providing an additional 2-ports for 10GbE.
Another platform option for the CTA is the Generation 7 (Gen-7) model. This model is a Dell R710 2U server with only 4 GB of RAM instead of the Gen-8’s 16 GB.
The Gen-7 comes with four 1 TB SATA drives in a RAID 1 configuration with two hot spares. There are two gigabit Ethernet ports for network connection. With this model, only 250 million files can be archived per appliance.
The Gen-7 comes with four 1 TB SATA drives in a RAID 1 configuration with two hot spares. There are two gigabit Ethernet ports for network connection. With this model, only 250 million files can be archived per appliance.
The oldest CTA hardware model is the Generation 6 (Gen-6). The Gen-6 is built on the Dell 2950 server. This model contains a Dual Intel 3.0 GHz Xeon processor with 4 GB of RAM.
There are four 250 GB SATA drives in a RAID 5 configuration with one hot spare. As with the Gen-7 model, the Gen-6 only has two gigabit Ethernet ports for networking and has a limitation of 250 million archived files per appliance
There are four 250 GB SATA drives in a RAID 5 configuration with one hot spare. As with the Gen-7 model, the Gen-6 only has two gigabit Ethernet ports for networking and has a limitation of 250 million archived files per appliance
In the event that a Gen-8 CTA or CTA-HA becomes unresponsive, a network console management page is available to allow users to control the appliance or reboot the system.
The console can be accessed through a dedicated management port on the back of the appliance which is labeled MGMT. For security purposes, network console management should be enabled on a network with access limited to system administrators only.
The console can be accessed through a dedicated management port on the back of the appliance which is labeled MGMT. For security purposes, network console management should be enabled on a network with access limited to system administrators only.
The requirements to implement a CTA/VE solution are four virtual CPUs, 16 GB of virtual RAM, 1 TB of virtual disk space and two Gigabit virtual interfaces must be reserved. For a CTA/VE-HA, the only differences compared to a CTA/VE is that only 4 GB of virtual RAM is needed along with 100 GB of virtual disk space. Both CTA/VE and CTA/VE-HA support ESXi server 4.1 and later, as well as ESX server 4.0 and later.
Disk space for the CTA/VE can be thin provisioned from the backend. Make sure that 1 TB is available in case the CTA/VE will need to archive close to its limit of 500 million files.
Disk space for the CTA/VE can be thin provisioned from the backend. Make sure that 1 TB is available in case the CTA/VE will need to archive close to its limit of 500 million files.
For many environments, using a single CTA or CTA/VE network interface will satisfy networking requirements. However, there are cases when more complex topologies are used.
The CTA supports combining Ethernet interfaces to form a bonded interface. This topology is used for high availability, to protect the CTA installation from a single point of failure. You may also use two subnets or more, one for the primary storage tier, and another for either the secondary tier or for a management interface. One port can be used for one subnet, and another port for the second subnet. The CTA also supports VLAN tagging and VLAN bonding, which is a VLAN interface created on top of a bond interface. Be aware that bonding or VLAN bonding is not supported on the CTA/VE.
The CTA supports combining Ethernet interfaces to form a bonded interface. This topology is used for high availability, to protect the CTA installation from a single point of failure. You may also use two subnets or more, one for the primary storage tier, and another for either the secondary tier or for a management interface. One port can be used for one subnet, and another port for the second subnet. The CTA also supports VLAN tagging and VLAN bonding, which is a VLAN interface created on top of a bond interface. Be aware that bonding or VLAN bonding is not supported on the CTA/VE.
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