When it’s time to decide on a heavy investment like this it’s not uncommon to look before you leap. There are advantages and disadvantages of both. Lets take a look.
Advantages to Blades
- Density – You can pack a lot of serves in a rack with blades.
- Power – Blades cost a lot less in electricity then standard servers.
- Less expensive per socket – The more blades you need the cheaper per socket they are.
- Clustering – They’re fantastic in vSphere/XenServer clusters. Much better hardware and driver support.
- Remote Management – It’s fantastic being able to boot into the BIOS of a blade from 1000 miles away.
Disadvantages to Blades
- Less expensive entry cost – The chassis alone can cost a lot. Then you need storage, and if you go fibre you need fibre switches. It adds up if you don’t go with iSCSI or NFS.
- Easier to upgrade – Some blades are easier than others but we are all used to simple tasks like adding RAM or a hard drive.
- Upgrades – If you really need to install a DAT24 tape drive you can.
- Vendor Lock In – Once you go with a brand you usually have to stick with that brand and even the chassis type to help reduce costs.