Hello,
Just partition the disk, like sda1, sda2, etc and add the following to
your config:
[osd.0]
osd journal = /dev/sda1
[osd.1]
osd journal = /dev/sda2
etc...
So you can point the "osd journal" to a file or to a device.
The negative side to this is you have to partition the disk and have to
add a different option for every osd. You could fix this with udev and
make a logical naming scheme for the device like:
/dev/osd.0.journal
/dev/osd.1.journal
etc
That way you can add to your config:
[osd]
osd journal = /dev/osd.$id.journal
Stefan
On 04/12/2012 06:22 PM, Madhusudhana U wrote:
Hi all,
I read in the wiki that, to have a better performance compared to file
under OSD data dir, we can have a seperate partition for OSD journal.
can someone suggest me, how i can mention this in ceph.conf file ?
I have below lines in my ceph.conf file. Is this means I already have
a partition for OSD journal
[osd]
osd data = /data/osd.$id
keyring = /etc/ceph/keyring.$name
osd journal = /journal/osd.$id.journal
/journal is a separate partition of 20G.
Thanks
__M
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