Re: [ceph-users] Boot volume on OSD device

2019-01-20 Thread Hector Martin
On 20/01/2019 05.50, Brian Topping wrote: > My main constraint is I had four disks on a single machine to start with > and any one of the disks should be able to fail without affecting the > ability for the machine to boot, the bad disk replaced without requiring > obscure admin skills, and the fin

Re: [ceph-users] Boot volume on OSD device

2019-01-19 Thread Brian Topping
> On Jan 18, 2019, at 10:58 AM, Hector Martin wrote: > > Just to add a related experience: you still need 1.0 metadata (that's > the 1.x variant at the end of the partition, like 0.9.0) for an > mdadm-backed EFI system partition if you boot using UEFI. This generally > works well, except on some

Re: [ceph-users] Boot volume on OSD device

2019-01-18 Thread Hector Martin
On 19/01/2019 02.24, Brian Topping wrote: > > >> On Jan 18, 2019, at 4:29 AM, Hector Martin wrote: >> >> On 12/01/2019 15:07, Brian Topping wrote: >>> I’m a little nervous that BlueStore assumes it owns the partition table and >>> will not be happy that a couple of primary partitions have been

Re: [ceph-users] Boot volume on OSD device

2019-01-18 Thread Brian Topping
> On Jan 18, 2019, at 4:29 AM, Hector Martin wrote: > > On 12/01/2019 15:07, Brian Topping wrote: >> I’m a little nervous that BlueStore assumes it owns the partition table and >> will not be happy that a couple of primary partitions have been used. Will >> this be a problem? > > You should

Re: [ceph-users] Boot volume on OSD device

2019-01-18 Thread Hector Martin
On 12/01/2019 15:07, Brian Topping wrote: I’m a little nervous that BlueStore assumes it owns the partition table and will not be happy that a couple of primary partitions have been used. Will this be a problem? You should look into using ceph-volume in LVM mode. This will allow you to creat

Re: [ceph-users] Boot volume on OSD device

2019-01-12 Thread Félix Barbeira
If you have the chance maybe the best choice is try booting OS from network. I mean you don't need an extra hd for the OS. Actually I'm trying to make a squashfs image which is booted over LAN via iPXE. This is a very good example: https://croit.io/features/efficiency-diskless El sáb., 12 ene. 201