> > Is the OS doing anything apart from ceph? Would booting a ramdisk-only
system from USB or compact flash work?
I haven't tested this kind of configuration myself but I can't think of
anything that would preclude this type of setup. I'd probably use sqashfs
layered with a tmpfs via aufs to avoid
2013/11/25 James Harper :
> Is the OS doing anything apart from ceph? Would booting a ramdisk-only system
> from USB or compact flash work?
This is the same question i've made some times ago.
Is ok to use USB as standard OS (OS, non OSD!) disk? OSDs and journals
will be on dedicated disks.
USB wi
On 2013-11-25 21:55, Kyle Bader wrote:
Several people have reported issues with combining OS and OSD
journals
on the same SSD drives/RAID due to contention.
I wonder whether this has been due to the ATA write cache flush command
bug that was found yesterday. It would seem to explain why a
c
Several people have reported issues with combining OS and OSD journals
on the same SSD drives/RAID due to contention. If you do something
like this I would definitely test to make sure it meets your
expectations. Ceph logs are going to compose the majority of the
writes to the OS storage devices.
>
> We need to install the OS on the 3TB harddisks that come with our Dell
> servers. (After many attempts, I've discovered that Dell servers won't allow
> attaching an external harddisk via the PCIe slot. (I've tried everything). )
>
> But, must I therefore sacrifice two hard disks (RAID-1) for
