The ATA arrays may be configured the same as FC arrays (number of drives in the RAID group, stripe size and parity protection) or may be completely different, but that doesn't matter when the data is accessed from the storage controller by a server.
Certainly you could consider the way the storage controller accesses the data a hardware and software change, but that is necessary because the physical interface is different and the command set used (SCSI vs. ATA) is different. That is all hidden from the outside world and self-contained in the storage system.
The drives themselves cannot be intermixed within a RAID group in products today.
Dig Deeper on Primary storage devices
Related Q&A from Randy Kerns
What is the one hidden gotcha that you'd advise users about if they were shopping for an all-flash storage array? Continue Reading
How much control do you have with all-flash storage arrays? How much control do you have over how arrays handle your data? Do you control the caching? Continue Reading
Vendors often publish numbers for 'usable' capacity versus 'effective' capacity. Can you explain this and how can you plan flash capacity needs with ... Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.