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