thanks. Ceph source code contains a script called vstart.sh which allows developers to quickly test their code using a simple deployment on your development system. Here: https://docs.ceph.com/en/latest//dev/quick_guide/ Although I completely agree with your manual deployment part, I thought may be the script can also give a good idea. May be I need to ask this in another email that how far I can go with the script. Some more questions please: How many OSDs have you been using in your second email tests for 1gbit [1] and 10gbit [2] ethernet? Or to be precise, what is your cluster for both? On Wed, Feb 10, 2021 at 11:40 AM Marc <Marc@xxxxxxxxxxxxxxxxx> wrote: > > > And you had the hit the nail by asking about *replication factor*. > > Because > > I don't know how to change the replication factor. AFAIK, by default it > > is > > *3x*. But I would like to change, for example to* 2x*. > > ceph osd pool get rbd size > https://docs.ceph.com/en/latest/man/8/ceph/ > > > So please excuse me for two naive questions before my cluster info [1]: > > > > - How can I change my replication factor? I am assuming I can change it > > through vstart script. > > I have no idea what vstart is. If you want to learn ceph (and you should, > if you are going to play with large amounts of other peoples data) install > it manually. IMHO deployment tools are for making deployments easier and > faster and not for for I don't know, so lets run a script. > > > > - How can I change ethernet speed on test cluster? For example, 1gbit > > ethernet > > and 10gbit ethernet. Like you had done it. Assuming I can change it > > through vstart script. > > Don't do it, it is a waste of time, it is just for reference. I wanted to > know when I started creating my test cluster. > > > [1] > > I am running a minimal cluster of 4 OSDs . > > I am not sure if you are going to get much more performance out of it > then. Because you do not utilize the power of many osd's. > > This how my individual drives perform under the same rados bench test. All > around the 20MB/s > > [@~]# dstat -d -D sdb,sdc,sdd,sdf,sdl,sdg,sdh,sdi > > --dsk/sdb-----dsk/sdc-----dsk/sdd-----dsk/sdf-----dsk/sdl-----dsk/sdg-----dsk/sdh-----dsk/sdi-- > read writ: read writ: read writ: read writ: read writ: read writ: > read writ: read writ > 3664k 284k:2507k 172k:2692k 204k:6676k 467k:2405k 322k:3220k > 230k:1932k 196k:2050k 202k > 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : > 0 0 : 0 0 > 0 8192B: 0 0 : 0 28k: 0 44k: 0 928k: 0 28k: > 0 0 : 0 12k > 0 4096B: 0 0 : 0 36k: 68k 32k: 0 0 : 0 0 : > 0 0 : 0 0 > 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : > 0 0 : 0 0 > 0 0 : 0 0 : 0 0 : 0 24k: 0 0 : 0 0 : > 0 0 : 0 0 > 4096B 104k: 0 0 :4096B 20k: 0 0 :8192B 152k: 0 80k: > 0 0 : 0 72k > 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : > 0 0 : 0 4096B > 0 0 : 0 12k: 0 0 : 0 0 : 0 12k: 0 24k: > 0 0 : 0 12k > 0 72k: 0 16k: 0 32k: 20k 100k: 0 4096B: 0 0 : > 0 0 : 0 24k > 0 8200k: 0 0 : 0 20M: 12k 20M: 0 28M: 0 20M: > 0 12M: 0 20M > 0 16M: 0 12M: 0 24M: 0 16M: 0 47M: 0 12M: > 0 8212k: 0 20M > 0 24M: 0 11M: 0 28M: 0 28M: 0 49M: 0 44M: > 0 12M: 0 24M > 0 38M: 0 13M: 0 42M: 0 32M: 0 28M: 0 31M: > 0 4104k: 0 21M > 0 50M: 0 8204k: 0 28M:4096B 44M: 0 61M: 0 33M: > 0 8204k: 0 12M > 0 32M: 0 20M:4096B 38M: 0 20M: 0 55M:8192B 39M: > 0 32M: 0 24M > 0 16M: 0 24M:4096B 29M: 0 36M: 0 28M: 0 17M: > 0 37M: 0 0 > 4096B 44M: 0 16M: 0 40M: 44k 31M:4096B 28M:8192B 32M: > 0 12M: 0 24M > 0 12M: 0 28M: 0 6196k: 0 18M: 0 52M: 0 32M: > 0 46M: 12k 40M > 0 20M: 0 18M: 0 38M: 0 52M: 0 32M: 0 24M: > 0 27M: 0 43M > 0 128k: 0 2056k: 0 16k: 20k 12M: 0 0 : 0 > 8212k:4096B 12k:8192B 9804k > 0 520k: 0 116k: 0 280k: 0 452k: 0 364k: 0 208k: > 0 152k: 0 144k > 0 64k: 0 88k: 0 64k: 0 132k:4096B 156k: 0 88k: > 0 72k: 0 184k > 0 140k: 0 0 : 0 0 :8192B 20k: 0 12k: 0 112k: > 0 0 : 0 0 > 0 0 : 0 8192B: 0 12k: 32k 1044k: 0 0 :4096B > 16k:4096B 0 : 0 24k > 0 0 : 0 0 : 0 36k: 0 12k: 0 0 : 0 0 : > 0 0 : 0 0 > 0 0 : 0 0 : 0 0 : 0 0 : 0 20k: 0 0 : > 0 0 : 0 0 > 0 92k: 0 24k: 0 0 : 12k 60k: 0 0 : 0 0 : > 0 0 : 320k 0 > 0 0 : 0 0 : 0 0 : 12k 80k: 0 20k: 0 0 : > 0 0 : 512k 0 > 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : 0 0 : > 0 0 : 768k 0 > > > > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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