ECC on the fly (ECC and cache)

Media problems:

Soft error count for read/write operations

Hard error count for read/write operations

Auto rewrite counts

Auto reallocation count and more

When choosing disks, there are several factors to consider that will ultimately affect performance and I/O capabilities of the overall system not just the disk subsystem, so ensure that you choose the right size and speed of disks to meet your needs.

Other points you should consider for your server are hot-swap hard disks, hot-swap disk controllers, the flexibility for growth, and other issues, such as:

Will this server support the future hard disks when they are available?

Can I use Fibre Channel disks on the system when they are available?

If I buy these disks today and need to upgrade six months from now, will I still be able to buy the same disks?

5.2.4 Networking

The networking design and network infrastructure is a very important part of any Intel-based server solution. This is particularly important with J.D Edwards’ OneWorld version B73.2.1 and above, as these versions of software are event driven. Event driven means that as the operator keys data into individual fields on the screen, then moves to another field, the input to a previous field is sent over the network. This allows for an evenly distributed flow of data across the network, rather than large packets of data, which can create network congestion.

Another major networking influence within J.D. Edwards’ OneWorld software is how the workstations are to be used:

Thin client - All OneWorld environments and objects run on the enterprise server

Thick client - Runs most of the OneWorld application locally

Again, the style of client used will be dependent upon the best option for the customer’s implementation. Also refer to 5.2.9, “Performance” on page 48 regarding networking performance hints within J.D. Edwards’ OneWorld.

Failure of any network adapter where loss of service to endusers is created is a disaster in today’s business-critical environments. To overcome this, there are various solutions available from IBM. Refer to 5.2.6.6, “PCI and ISA Adapter Cards” on page 46 for further details of options available.

5.2.4.1 Ethernet Network Hints and Tips

In this section is a list of tips to consider for an Ethernet network:

1.The network infrastructure wiring plant should be 10Base-T Category 5 based. By using a 10base2 "thinwire/coaxial" daisy-chained system, you will have throughput problems along with a higher number of collisions.

38J.D. Edwards’ OneWorld B73.3 and Windows Terminal Server

Page 50
Image 50
IBM B73.3 manual Networking, Ethernet Network Hints and Tips