Hi Don,
Take a look at CRUSH settings.
http://ceph.com/docs/master/rados/operations/crush-map/
Jason
2015-01-22 2:41 GMT+08:00 Don Doerner :
> OK, I've set up 'giant' in a single-node cluster, played with a replicated
> pool and an EC pool. All goes well so far. Question: I have two different
you have a nice howto here
http://www.sebastien-han.fr/blog/2012/12/07/ceph-2-speed-storage-with-crush/
on how to do this with crush rules.
On Fri, Jan 23, 2015 at 6:06 AM, Jason King wrote:
> Hi Don,
>
> Take a look at CRUSH settings.
> http://ceph.com/docs/master/rados/operations/crush-map/
>
Hi All,
This is my first post, I have been using Ceph OSD in OpenStack Icehouse as part
of the Mirantis distribution with Fuel - this is my only experience with Ceph,
so as you can imagine - it works, but I don't really understand all of the
technical details, I am working for a college in Irel
I'm also interested in this question. Can any body give some view point?
I wonder *Do* we really need backup the image through snapshot in an
excellent performance, reliability and scalability distributed file system?
2015-01-19 18:58 GMT+08:00 Luis Periquito :
> Hi,
>
> I'm currently creating a
Just to chime in: it will look fine, feel fine, but underneath it's
quite easy to get VMFS corruption. Happened in our tests.
Also if you're running LIO, from time to time expect a kernel panic
(haven't tried with the latest upstream, as I've been using
Ubuntu 14.04 on my "export" hosts for the
These were exactly the pointers I needed, thank you both very much.
Regards,
-don-
On Friday, January 23, 2015 1:09 AM, Luis Periquito wrote:
you have a nice howto here
http://www.sebastien-han.fr/blog/2012/12/07/ceph-2-speed-storage-with-crush/ on
how to do this with crush rules.
On
On Wed, Jan 21, 2015 at 7:24 PM, Mark Kirkwood
wrote:
> I've been looking at the steps required to enable (say) multi region
> metadata sync where there is an existing RGW that has been in use (i.e non
> trivial number of buckets and objects) which been setup without any region
> parameters.
>
> N
Thanks for your responses guys,
I’ve been spending a lot of time looking at this recently and I think I’m even
more confused than when I started.
I been looking at trying to adapt a resource agent made by tiger computing
(https://github.com/tigercomputing/ocf-lio) to create a HA LIO fai
Also, one more point to consider. A bucket that was created at the
default region before a region was set is considered to belong to the
master region.
Yehuda
On Fri, Jan 23, 2015 at 8:40 AM, Yehuda Sadeh wrote:
> On Wed, Jan 21, 2015 at 7:24 PM, Mark Kirkwood
> wrote:
>> I've been looking at t
Thanks for the feedback Nick and Zoltan,
I have been seeing periodic kernel panics when I used LIO. It was either
due to LIO or the kernel rbd mapping. I have seen this on Ubuntu precise
with kernel 3.14.14 and again in Ubunty trusty with the utopic kernel
(currently 3.16.0-28). Ironically, thi
Hello fellow ceph users,
I ran into a major issue were two KVM hosts will not start due to issues with
my Ceph cluster.
Here are some details:
Running ceph version 0.87. There are 10 hosts with 6 drives each for 60 OSDs.
# ceph -s
cluster 1431e336-faa2-4b13-b50d-c1d375b4e64b
health H
Hi Glen
Run a ceph pg {id} query on one of your stuck PGs to find out what the PG
is waiting for to be completed.
Rgds
JC
On Friday, January 23, 2015, Glen Aidukas
wrote:
> Hello fellow ceph users,
>
>
>
> I ran into a major issue were two KVM hosts will not start due to issues
> with my Cep
Hi to all,
I've a question regarding Ceph and IB, we plan to migrate our
Ethernet ceph cluster to a infiniband FDR 56Gb/s architecture. We are
going to use 2x Mellanox IB SX6036G switches for the Public Network
and a 2x IB SX6018F switch for the Cluster network, and Mellanox FDR
ADPT dua
It depends. There are a lot of variables, like how many nodes and disks
you currently have. Are you using journals on SSD. How much data is
already in the cluster. What the client load is on the cluster.
Since you only have 40 GB in the cluster, it shouldn't take long to
backfill. You may fin
I would go with tgt regardless of your HA solution. I tried to use LIO for
a long time and am glad I finally seriously tested tgt. Two big reasons are
1) latest rbd code will be in tgt
2) two less reasons for a kernel panic in the proxy node (rbd and iscsi)
For me, I'm comfortable with how my sys
Correct me if I'm wrong, but tgt doesn't have full SCSI-3 persistence
support when _not_ using the LIO
backend for it, right?
AFAIK you can either run tgt with it's own iSCSI implementation or you
can use tgt to manage your LIO targets.
I assume when you're running tgt with the rbd backend co
Hi Craig!
For the moment I have only one node with 10 OSDs.
I want to add a second one with 10 more OSDs.
Each OSD in every node is a 4TB SATA drive. No SSD disks!
The data ara approximately 40GB and I will do my best to have zero
or at least very very low load during the expansion process.
T
You've either modified the crushmap, or changed the pool size to 1. The
defaults create 3 replicas on different hosts.
What does `ceph osd dump | grep ^pool` output? If the size param is 1,
then you reduced the replica count. If the size param is > 1, you must've
adjusted the crushmap.
Either
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