A server quotation is a parts list wearing a suit. Once you know what each line does, it stops being intimidating — and you can tell the difference between a quotation you can approve and one that will need three follow-up orders.
The lines that decide the price
Chassis and form factor. 1U, 2U or tower. This determines how many drives fit, how much cooling is available and whether a full-height expansion card can be installed. Changing it later means requoting everything.
Processor. Quoted by exact model, not by family. Core count, clock speed and cache all vary within a family, and so does the price. A dual-processor configuration also affects memory: on most platforms, half the memory channels belong to the second processor, so a single-processor server cannot use all the slots.
Memory. See below — this is the most common error.
Storage controller. A basic controller and a cached RAID controller with battery backup are very different things, and they are not interchangeable for a database workload. If the line says nothing about cache, ask.
Network adapter. Onboard ports plus any additional card. Check the speed and the connector type, because they determine which cables and transceivers you need.
Power supplies. One or two. Two is not a luxury on anything running continuously, and it is far cheaper to buy the second one now than to add it later.
Rails and bezel. Small lines, frequently omitted, and a server without rails cannot be racked.
Warranty tier. Next business day, four-hour response, on-site or return-to-base. This can be a large share of the total, and it is the line most worth understanding before you cut it.
Memory is where quotations go wrong
Server memory performs best when the modules are populated in a specific pattern across the memory channels. A configuration that reaches the right total capacity using the wrong number of modules can leave real performance on the table.
Two questions solve this: how many modules are being supplied to reach the quoted capacity, and does that count populate all channels for the processor configuration quoted. A supplier who can answer both immediately has configured the machine properly.
Also ask how many slots remain free. Reaching your target capacity using every slot means the only way to expand later is to throw the existing modules away.
Storage: bays are not drives
A chassis described as supporting eight drive bays is not being supplied with eight drives. Read the drive lines separately and check three things: the quantity, the interface, and whether the caddies or trays are included. Empty bays sometimes ship without caddies, and buying them separately later costs more than they should.
If the quotation mentions RAID, confirm what the usable capacity will be after the RAID level is applied. Raw capacity and usable capacity are different numbers, and the gap surprises people.
Order at least one spare drive of the exact model with the server. A rebuild is much less stressful when the replacement is already on the shelf.
What is usually missing
- Rack rails and cable management arm
- Drive caddies for empty bays
- Network transceivers and the correct cables — these depend on the switch, so they are often left for later and then forgotten
- Operating system licence
- Power cables of the right type for your PDU
- Spare drives and, on critical systems, a spare power supply
None of these are expensive relative to the server. All of them will delay commissioning if they arrive a week late.
Questions to ask before approving
- Is the lead time stated per line, or averaged across the order? Averages hide the one item that arrives a month late.
- Will everything ship together, or will the order be split?
- What is the warranty period and response type, and does it cover on-site attendance at my location?
- Is the memory configuration populating all channels for the quoted processor count?
- Are rails, caddies, cables and transceivers included?
A supplier who answers those five clearly is quoting a machine they have actually configured. One who answers vaguely is quoting a model number.
