For JBOD disks the LSI or the build-in Intel or AMD ports seem to be equally as fast since they are all connected to the CPU with enough PCI-e lanes, and for most usage cases it is plenty fast enough. I have had bad luck with at least 2 different marvell chipsets, so won't touch those. One of them would timeout all 4 disks connected to it and the issue seemed to be worse if smart commands were being done (I removed a job that was doing smart commands often, and stability went from weeks to months). It was a 9230 and it acted like it was using a SAS expanders, and some notes I have found indicated a number of the Marvell ones rely on a SAS expander. It was 4portsx6gbit with pcie-x2 and was fast when it worked but unreliable. So I am staying one of the enterprise class SAS cards, or the build-in's from AMD or Intel is all I will use. On Thu, Aug 9, 2018 at 2:08 PM, Alex <mysqlstudent@xxxxxxxxx> wrote: > Hi, > >> The curiosity is killing me! What do you need >> 6+ SATA ports for? > > I have a 60GB SSD that I use for root, along with a 240GB I use for a > Windows VM. The others are 4TB disks I use for my photography and > Videos/torrents. The sixth is the BR-DVD > > I needed two more 4TB to mirror together for data to bring to the colo > instead of having to transfer it to our production systems over the > Internet. > > It also became an exercise to learn whether the onboard Intel is as > fast as one of the LSI/RAID/SAS controllers, and perhaps it would be > faster to use one of those instead of the onboard Intel. > >> It has an M.2 NVMe slot (which uses four lanes of PCIe) > > Aren't those "disks" very expensive? And limited capacity? I also > don't currently have any, so would have to buy them to replace what I > have. > > Thanks, > Alex > _______________________________________________ > users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx/message/7QZXNUAAX666RCGX3LWHGBSODTSOCOXZ/ _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx/message/JPJXHQ7MEUQYJ2IYP4PLEXFSZE2MH6QU/
