![]() The dedicated cards have some advantages. I don’t wish to buy another RAID card which claims to be Linux compatible, but doesn’t work out of the box with Ubuntu, does anyone know of any that will fit the bill?Īll RAID is software RAID, it is just if the software is PC-based or Card-specific-based. I have been looking high and low for a hardware SATA PCI or PCI-e x1 RAID controller that is guaranteed to work in Ubuntu out of the box, I have asked on the Ubuntu forums before, but nobody seems to know. I would also like my Windows XP to utilise the RAID0 funcionality so the games run super fast, so pretty much need hardware RAID. My own machine also dual boots, as I am also a heavy gamer (as well as Python hacker and Ubuntu fan). In the end we setup a pretty complex partitioning scheme that ran Windows in non-RAID and Linux in LVM, it works but it wasn’t exactly a pretty partitioning layout. However, Ubuntu doesn’t seem to recognise the NVidia onboard SATA RAID controller (it sees two 80 gig drives, not one 160 gig), and this is not the first RAID controller I have seen that Ubuntu won’t recognise, I had an IDE raid controller which I purchased which was supposed to be “Linux Compatible”, but Ubuntu didn’t recognise it, so I blew away money buying the card, maybe it was only for Redhat. We would have liked to run in hardware RAID0 because then both Windows and Linux will utilise the RAID and we would have only needed to partition the 160gig RAID0 drive in two. On one of my friends’ PC we are running both Windows and Ubuntu on two 80 gig drives. Category: Hardware Tags: hardware RAID, software RAID Which do you use and why? (The why is what I’m looking for). I’d really like to hear the communities thoughts and experiences on hardware RAID vs software RAID. Is this an accurate assumption? I should mention that I have only really used software RAID so I don’t have a lot of first-hand experience on the other end. On the flip-side, if you get a quality card that has RAID specific instruction sets it could likely perform even better than a quad-core machine. ![]() ![]() I would think the quad-core machine would have more than enough processing power to handle the RAID, as compared to the cheap hardware controller. Lets say you put a cheap hardware RAID controller in your quad-core machine, which normally has a minimal load. Now, in my mind, the performance difference between the two (software vs hardware) can come down to how much you’re willing to spend on your hardware RAID controller. Nobody seems to use software RAID, at least in what I’ve run into. If your budget allows for it, then hardware-based RAID is definitely the way forward.I’ve been teaching software RAID on RHEL5 for some time now and today I came to the realization that nearly every student I’ve ever taught that is currently using RAID is using hardware RAID. But if you're using a more complex setup such as RAID 5 or 6, you should opt for hardware-based RAID, because these setups can noticeably hamper performance. So how would you decide whether a hardware-based RAID or software-based RAID approach would suit your needs better? If you're on a tight budget, and you're using RAID 0 or 1, there really won't be much of a difference which one you choose. You can also purchase third-party RAID software, such as SnapRAID and FlexRAID. Some operating systems will provide software RAID capabilities built-in, for example Windows Server's Storage Spaces feature. However, as noted above, it is important that the host system is capable of running the RAID software, without negatively impacting on performance. The main advantage of choosing a software-based RAID setup is the lower costs, as no specialist RAID controller card is required. While it provides similar functionality as hardware-based RAID, software-based RAID's performance is typically not as strong. Software-based RAID uses the hardware resources of the host system, and can be draining on memory. However, if a physical, hardware-based RAID controller fails, a compatible one must be acquired in order for the data to be accessed. Sometimes, hardware-based RAID controllers are referred to as RAID adapters. This means that no processing power is taken from the disks it is managing. A RAID controller is a hardware device or a piece of software that essentially manages the drives in an array, supporting the specific RAID level, of which there are many.Ī hardware-based RAID system utilises a physical RAID controller, which may take the form of a PCI or PCIe card, and manages the RAID configuration independent of the operating system. RAID controllers can be hardware-based or software-based, both offering advantages and disadvantages. Making the choice between hardware and software RAID really depends on your needs and your budget.
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