Re: Can I deploy wal and db of more than one osd in one partition

[David Turner <drakonstein@xxxxxxxxx>]

You need to do them on separate partitions. You can either do sdc{num} or manage the SSD using LVM.

On Sun, Aug 26, 2018, 8:39 AM Zhenshi Zhou <deaderzzs@xxxxxxxxx> wrote:

Hi,

I have 4 osd nodes with 4 hdd and 1 ssd on each.

I'm gonna add these osds in an existing cluster.

What I'm confused is that how to deal with the ssd.

Can I deploy 4 osd with wal and db in one ssd partition such as:

# ceph-disk prepare --bluestore --block.db /dev/sdc --block.wal /dev/sdc /dev/sdd  

# ceph-disk prepare --bluestore --block.db /dev/sdc --block.wal /dev/sdc /dev/sde  

# ceph-disk prepare --bluestore --block.db /dev/sdc --block.wal /dev/sdc /dev/sdf 

# ceph-disk prepare --bluestore --block.db /dev/sdc --block.wal /dev/sdc /dev/sdg 

or should I place wal and db in seperate ssd partitions:

# ceph-disk prepare --bluestore --block.db /dev/sdc1 --block.wal /dev/sdc1 /dev/sdd   

# ceph-disk prepare --bluestore --block.db /dev/sdc2 --block.wal /dev/sdc2 /dev/sde  

# ceph-disk prepare --bluestore --block.db /dev/sdc3 --block.wal /dev/sdc3 /dev/sdf 

# ceph-disk prepare --bluestore --block.db /dev/sdc4 --block.wal /dev/sdc4 /dev/sdg 

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com