What is the difference between software and hardware RAID? Print
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The difference between software and hardware RAID is the location from where processing is performed. For software RAID processing is performed by the host server’s CPU (Central processing unit), whereas for hardware RAID processing is performed by an external CPU located on a dedicated RAID card.

Software RAID is configured and managed by the operating system of the host computer. All processing via software RAID is handled by the host computer’s CPU.  Traditionally hardware RAID offered better I/O performance but with technological advancements offered on CPU and operating system technologies, there is very little difference in performance between hardware and software RAID.

Hetzner has removed hardware RAID from its product offering as software RAID offers a better price/performance ratio over hardware RAID.

For customers who still wish to have hardware RAID configured on their new TruServ™ Plus, it is available at a monthly premium.

Our Hardware RAID logical disks are configured in a RAID 1 configuration which is controlled by a dedicated RAID expansion card. This expansion card handles all transactions to and from the logical disks.

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