Dell Precision T7920 RAID problems (intel RST VROC software raid)
by bennyt from LinuxQuestions.org on (#6KG9X)
Hi folks,
Does anyone have any experience / advice with SATA RAID on Dell Precision T7920 (possibly also T5820 ad T7820)?
It appears the only built-in (SATA) RAID is some horrible Intel RST firmware / software type RAID - also called "VROC" (virtual raid over CPU)? When I configure a basic RAID0 (on two SATA 7200 drives) in the BIOS, I boot into Slackware from a different disk or setup stick, and all I see are the two normal drives (not-RAIDed).
My assumption is even if I got this working, performance would be limited and CPU intensive? I don't even know what software / distro / kernel are required to "see" this type of RAID? Seems like Slackware just ignores it... but I don't really understand the point of it.
Is it worth getting a PCIe card hardware controller and trying to hook it all up? This page https://www.dell.com/support/kbdoc/e...lers_available seems to suggest a number of options but the cabling seems annoying, particularly since the machine comes with a bunch of integrated hot-swap disk bays already wired in.
Thanks
Does anyone have any experience / advice with SATA RAID on Dell Precision T7920 (possibly also T5820 ad T7820)?
It appears the only built-in (SATA) RAID is some horrible Intel RST firmware / software type RAID - also called "VROC" (virtual raid over CPU)? When I configure a basic RAID0 (on two SATA 7200 drives) in the BIOS, I boot into Slackware from a different disk or setup stick, and all I see are the two normal drives (not-RAIDed).
My assumption is even if I got this working, performance would be limited and CPU intensive? I don't even know what software / distro / kernel are required to "see" this type of RAID? Seems like Slackware just ignores it... but I don't really understand the point of it.
Is it worth getting a PCIe card hardware controller and trying to hook it all up? This page https://www.dell.com/support/kbdoc/e...lers_available seems to suggest a number of options but the cabling seems annoying, particularly since the machine comes with a bunch of integrated hot-swap disk bays already wired in.
Thanks