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In theory yes, more drives in a raid0 would lead to higher performance because the load is shared over more drives. However in practice you would be limited by the the bandwidth of the raid conbtroller, the CPU and memory performance and similar. In any reasonably modern system with a raid controller, or even using a software raid with linux' mdadm, using 8 ...


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Here are the steps: See if the feature is not frozen. hdparm -I /dev/sdX. If it is (usually by the BIOS), a good way to unfreeze it is to suspend the computer, and resume - then the drive gets powered up, but without BIOS. IMPORTANT: set the password. This will enable the security feature of the drive: hdparm --user-master u --security-set-pass password ...


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Your IT provider is charging way too much for 4x 300GB S3500. Heck, you can buy one of them for about 250$ That said, it is only you that can determine if the SSD upgrade is worth or not. Is you application I/O bound? If so, SSD are way faster than 15k drivers (somewhat between 5-20X, depending on I/O pattern and mean size). If not (eg: your application ...


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My hosting company told me they do not use SSD because they did not see a significant change in performance over their 15k SAS HDD drives. They are drunk, idiots, on drugs or simply used a benchmark making little sense or being too specific (like a web server that will not see a large difference - compared to a databsae server for example). A lot ...


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I needed to test this for myself... I purchased four Intel 750 PCIe NVMe SSDs to install in HP ProLiant DL380p Gen8 servers. The servers are not the current generation Intel 2600v3 series CPUs, but rather the 2600v2 CPUs. The takeaway: NVMe is an interface specification. Under Linux, the devices are enumerated as /dev/nvmeXnY, e.g. /dev/nvme0n1 and ...


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I tend to think that in general it is better to buy cheap stuff with lots of spares and just replace them when they break - I guess I don't understand that line of thinking. Should you be financially frugal? Yes. Should you be cheap? Probably not. I don't have any expertise on the specifics of consumer versus enterprise SSD drives so I can't speak to that ...


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No, you can't just use any SSD in that model server. The Smart Array P410 array controller is a little sensitive, but will work with most SSDs. For others, it may not recognize the disks or will show error lights or even cause the system fan speeds to increase (because of misread SSD temperature sensors). Being more specific about which SSDs you'd like to ...


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I would recommend that you check your logs (/var/log/*) for messages like "NCQ disabled due to excessive errors", this and similar messages (try to look for anything with "ata" in it too) indicate that you are having errors on your SATA links and these may cause Linux to disable NCQ and then you'll get a very bad performance. I've written a longer version a ...



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