Re: Setting up Fakeraid with mdadm

2016-03-24 Thread Dan Ritter
On Thu, Mar 24, 2016 at 05:08:06PM +0100, Christoph Pleger wrote: > Hello, > > >> > >> Isn't it possible to use mdadm for mirroring disks as a whole, instead > >> of > >> single partitions? > > > > Yes, but if it's going to be your main boot and root, don't do > > that. > > How is that done if it

Re: Setting up Fakeraid with mdadm

2016-03-24 Thread Christoph Pleger
Hello, >> >> Isn't it possible to use mdadm for mirroring disks as a whole, instead >> of >> single partitions? > > Yes, but if it's going to be your main boot and root, don't do > that. How is that done if it is not the boot disc? And why can it not be the boot disc, though it could with dmraid?

Re: Setting up Fakeraid with mdadm

2016-03-24 Thread Dan Ritter
On Thu, Mar 24, 2016 at 01:52:30PM +0100, Christoph Pleger wrote: > Hello, > > > Configure the LSI to present individual disks and then use mdadm > > the normal way: partition the disks into two sets, a small /boot > > partition and a large /. (Or three partitions per disk: /boot, / > > and /home.

Re: Setting up Fakeraid with mdadm

2016-03-24 Thread Christoph Pleger
Hello, > Isn't it possible to use mdadm for mirroring disks as a whole, instead of > single partitions? If mdadm cannot create such RAIDs, is it possible to disable mdadm and use dmraid instead? On the web, I have found information about a kernel command line option 'nomdmonddf', but almost all o

Re: Setting up Fakeraid with mdadm

2016-03-24 Thread Christoph Pleger
Hello, > Configure the LSI to present individual disks and then use mdadm > the normal way: partition the disks into two sets, a small /boot > partition and a large /. (Or three partitions per disk: /boot, / > and /home.) > > Create mdadm pairs for each of sda1,sdb1 sda2,sdb2 sda3,sdb3 > ... and

Re: Setting up Fakeraid with mdadm

2016-03-24 Thread Dan Ritter
On Thu, Mar 24, 2016 at 11:52:05AM +0100, Christoph Pleger wrote: > Hello, > > I am trying to use an "LSI Megaraid Software RAID" with mdadm, but I have > not been successful so far. When I configure a RAID 1 in the BIOS > Setup-Utility and boot from network with an NFSROOT, a ddf container > devi

Setting up Fakeraid with mdadm

2016-03-24 Thread Christoph Pleger
Hello, I am trying to use an "LSI Megaraid Software RAID" with mdadm, but I have not been successful so far. When I configure a RAID 1 in the BIOS Setup-Utility and boot from network with an NFSROOT, a ddf container device is detected as /dev/md127 and a raid device as /dev/md126, but when I reboo