Hi Ignacio,
El 9/3/20 a las 15:19, Ignacio Ocampo escribió:
I was considering 1 GB per TB, but I will switch that to 4 GB per TB
to consider blue storage.
Much better. :)
Regarding the number of devices, Will 2 disks per node help with the
cluster speed?
Yes, it will help. Generally speaking, more disks=better performance.
You may consider using the server's OS m.2 slot disk for Bluestore's db
to improve performance; if you do so, make sure to use enterprise SSDs
(like Intel D3-S4510 for example). You may need to get a better AM4 CPU
too, specially if using SSD for Bluestore:
https://cpu.userbenchmark.com/Compare/AMD-Ryzen-5-2600-vs-AMD-A8-9600-APU-2016-DBR/3955vsm339630
https://cpu.userbenchmark.com/Compare/AMD-Ryzen-5-3600-vs-AMD-A8-9600-APU-2016-DBR/4040vsm339630
My ultimate goal is to provide support to a second project which will
be an OpenStack deployment.
It will be a small deployment right? :-) Because the config you
referenced is quite underpowered.
How many VMs? What level of IO? (IO per second?)
You'll be able to perform about 100-150 IOPS with one HDD per server...
Cheers
Eneko
Oliver Audrey, I prefer to invest in hardware rather than renting it,
since I want to create a private cloud.
Thanks!
*Ignacio Ocampo*
On Mar 9, 2020, at 4:12 AM, Eneko Lacunza <elacunza@xxxxxxxxx> wrote:
Hola Ignacio,
El 9/3/20 a las 3:00, Ignacio Ocampo escribió:
Hi team, I'm planning to invest in hardware for a PoC and I would
like your
feedback before the purchase:
The goal is to deploy a *16TB* storage cluster, with *3 replicas*
thus *3
nodes*.
System configuration: https://pcpartpicker.com/list/cfDpDx ($400 USD per
node)
Some notes about the configuration:
- 4-core processor for 4 OSD daemons
- 8GB RAM for the first 4TB of storage, that will increase to 16GB of
RAM when 16TB of storage.
- Motherboard:
- 4 x SATA 6 Gb/s (one per each OSD disk)
- 2 x PCI-E x1 Slots (1 will be used for an additional Gigabit
Ethernet)
- 1 x M.2 Slots for the host OS
- Ram can increase up-to 32 GB, and another SATA 6b/s
controller can
be added on PCI-E x1 for growth up to *32TB*
As noted, the plan is to deploy nodes with *4TB* and gradually add
*12TB* as
needed, memory also should be increased to *16GB* after *8TB* threshold.
Edit
Questions to validate before the purchase
1. Does the hardware components make sense for the *16TB* growth
projection?
2. Is it easy to gradually add more capacity to each node (*4TB*
each time
per node)?
Thanks for your support!
You may find that having only one disk per node, will make the
storage quite slow.
I think you're low on RAM to use bluestore, specially when adding new
disks, please check:
https://docs.ceph.com/docs/master/start/hardware-recommendations/
It is easy to add additional disks, yes.
You may also want to try some solution for easier deployment for such
a small cluster, I can recommend Proxmox VE (https://www.proxmox.com)
but there are others.
Cheers and good luck
Eneko
--
Zuzendari Teknikoa / Director Técnico
Binovo IT Human Project, S.L.
Telf. 943569206
Astigarragako bidea 2, 2º izq. oficina 11; 20180 Oiartzun (Gipuzkoa)
www.binovo.es
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--
Zuzendari Teknikoa / Director Técnico
Binovo IT Human Project, S.L.
Telf. 943569206
Astigarragako bidea 2, 2º izq. oficina 11; 20180 Oiartzun (Gipuzkoa)
www.binovo.es
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
