On Tue, Jul 7, 2015 at 7:45 PM, Linda Walsh
Ditto on that. Cept my raid meltdown was back under the 2.x kernels. Decided to go w/hardware raid or BIOS-raid for 1+0 setups.
For what it's worth, firmware RAID were previously managed by the device mapper (dmraid), and now these days it's managed by md/mdadm. The firmware understands the ondisk metadata format and assembles the array so that things like bootloaders can be properly found and used in the pre-boot environment. But after all that, the kernel (and mdadm) are completely responsible for handling this kind of RAID, the firmware is not involved.
I'm sure people here will express doubts about using RAID5 especially with just three spindles. But that's another matter.
??? How many should you have?
I'm lost here too. Three is more reliable than four with respect to data to parity ratio. And two disk RAID 5 is the same thing as mirroring except also weird so why bother?
xfs doesn't have those problems, but the new CRC-check on the meta data has me very worried -- You can't even change a disks GUID w/o the disk becoming corrupt.
Yes. I suspect this is a short term issue because right now snapshotting is almost completely unworkable (LVM snapshots of either variety, as well as qcow2, etc) if that volume UUID appears to the kernel twice. -- Chris Murphy -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org