Design for Ceph Storage integration with openstack

[Gaurav Goyal <er.gauravgoyal@xxxxxxxxx>]

Situation is --> I have installed openstack setup (Liberty) for my lab.

Dear Ceph users, 

I need your suggestion for my ceph design.

I have 

Host 1 --> Controller + Compute1

Host 2  --> Compute 2

DELL SAN storage is attached to both hosts as 

[root@OSKVM1 ~]# iscsiadm -m node

10.35.0.3:3260,1 iqn.2001-05.com.equallogic:0-1cb196-07a83c107-47700000018575af-vol1

10.35.0.8:3260,1 iqn.2001-05.com.equallogic:0-1cb196-07a83c107-47700000018575af-vol1

10.35.0.*:3260,-1 iqn.2001-05.com.equallogic:0-1cb196-20d83c107-7290000002157606-vol2

10.35.0.8:3260,1 iqn.2001-05.com.equallogic:0-1cb196-20d83c107-7290000002157606-vol2

10.35.0.*:3260,-1 iqn.2001-05.com.equallogic:0-1cb196-f0783c107-70a000000245761a-vol3

10.35.0.8:3260,1 iqn.2001-05.com.equallogic:0-1cb196-f0783c107-70a000000245761a-vol3

10.35.0.*:3260,-1 iqn.2001-05.com.equallogic:0-1cb196-fda83c107-927000000275761a-vol4

10.35.0.8:3260,1 iqn.2001-05.com.equallogic:0-1cb196-fda83c107-927000000275761a-vol4

with fdisk -l, it is mentioned as 

sdc, sdd, sde and sdf on host1

sdb,sdc,sdd,and sde on host 2

  

I need to configure this SAN storage as CEPH. 

i am thinking of 

osd0 with sdc on host1

osd1 with sdd on host1

osd2 with sdd on host2

osd3 with sde on host2

So as to have 

[root@host1 ~]# ceph osd tree

ID WEIGHT  TYPE NAME       UP/DOWN REWEIGHT PRIMARY-AFFINITY 

-1 7.95996 root default                                      

-2 3.97998     host host1                                   

 0 1.98999         osd.0        up  1.00000          1.00000 

 1 1.98999         osd.1        up  1.00000          1.00000 

-3 3.97998     host host2                                   

 2 1.98999         osd.2        up  1.00000          1.00000 

 3 1.98999         osd.3        up  1.00000          1.00000 

Is it ok? or i must change my ceph design?

Regards

Gaurav Goyal

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