General Information CWNWH
Brand : Dell
MPN : CWNWH
Type : Controller
Sub-Type : ISCSI
SKU : CWNWH
Technical Information CWNWH
Type B Controller Module
2 X 6GBPS SFF-8088 Ports
4 X 1GBPS ISCSI Ports
Compatible: Compellent SCV2000, SCV2020
About New Bulk Pack Products
Are you looking to create a Storage Area Network (SAN)? Allhdd.com has ISCSI controller/ ISCSI card solutions that will suit your need for storage networking that runs the storage protocol across the Ethernet network connection.
Internet Small Computer System Interface (ISCSI) can connect any computer on the network to high-performance storage; this can be, for example, a thunderbolt disc or infotrend fiber storage. ISCSI is very similar to the fiber channel, making the computer see the storage not as a network share but as a local disc. An iSCSI storage area network comprises storage array controllers with ISCSI targets and storage clients with ISCSI initiators.
When an organized database initiates a request, two things occur—one on the source side and the other on the receiving end.
On the source side, an end-user application launches a request to the operating system. Consequently, a suitable SCSI command and a data request are generated. If configured, these then pass through encapsulation and encryption. A packet header is attached to the call, and the resultant IP packets are dispatched through the Ethernet connection.
On the other end (receiving side), the packet goes through a decryption process. This happens if the packet is encrypted before transmission. The packet is disassembled where SCSI commands and the call are separated. The SCSI commands are then transferred to the SCSI controller, from where they are redirected to the SCSI storage device.
ISCSI improves block storage performance, and it can run on standard network cards or specialized Host Bus Adapter (HBAs); iscsi controllers are supported by almost all computer operating systems. The performance, reliability, and predictability of ISCSI as a storage protocol has greatly been enhanced due to the rapid growth of faster Ethernet speeds such as 25G, 50G, 100G, and increased support for congestion management.
ISCSI Controllers on Allhdd.com
You can buy from our collection high-quality ISCSI controllers from household brands, including, Powervault, Host Bus Adapter, MSA 2000 Series, Raid Controller, Storage Controller, Equallogic,4 Port, MSA1050, and 10GB controllers.
The performance of the ISCSI is directly related to the underlying technologies in the data center, while ethernet network connection speed has a significant impact on ISCSI performance.
Data Center bridging allows ISCSI to perform better and compete with a highly dependable fiber channel that has run over lossless connections for a long time now. ISCSI multipathing I/O speeds up the network packets by assigning multiple addresses to a single ISCSI session. On the other hand, jumbo frames are 900-byte frames and relieve congestion on a slower Ethernet network that does not use 10 GbE. Using jumbo frames will boost performance up to 10 – 20 per cent.
ISCSI and Fibre Channel
These are the two main approaches to storage data transmission. Fibre Channel (FC) requires specialized admin skill sets, and it has a high-performance. ISCSI is more comfortable to deploy and manage; however, it has a higher latency. Some protocols allow the merging of ISCSI and FC; an example is the Fibre Channel over IP (FCIP) and the Fibre Channel over Ethernet (FCoE). FCIP wraps FC frame onto the TCP stream for SAN to SAN replication, while FCoE allows FC SANs to transfer data packets over the Ethernet networks. Shop on allhdd.com today for affordability and huge returns on your investments.