[Gluster-users] Gluster infrastructure question

[Heiko Krämer]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Heyho guys,

I'm running since years glusterfs in a small environment without big
problems.

Now I'm going to use glusterFS for a bigger cluster but I've some
questions :)

Environment:
* 4 Servers
* 20 x 2TB HDD, each
* Raidcontroller
* Raid 10
* 4x bricks => Replicated, Distributed volume
* Gluster 3.4

1)
I'm asking me, if I can delete the raid10 on each server and create
for each HDD a separate brick.
In this case have a volume 80 Bricks so 4 Server x 20 HDD's. Is there
any experience about the write throughput in a production system with
many of bricks like in this case? In addition i'll get double of HDD
capacity.

2)
I've heard a talk about glusterFS and out scaling. The main point was
if more bricks are in use, the scale out process will take a long
time. The problem was/is the Hash-Algo. So I'm asking me how is it if
I've one very big brick (Raid10 20TB on each server) or I've much more
bricks, what's faster and is there any issues?
Is there any experiences ?

3)
Failover of a HDD is for a raid controller with HotSpare HDD not a big
deal. Glusterfs will rebuild automatically if a brick fails and there
are no data present, this action will perform a lot of network traffic
between the mirror bricks but it will handle it equal as the raid
controller right ?



Thanks and cheers
Heiko



- -- 
Anynines.com

Avarteq GmbH
B.Sc. Informatik
Heiko Krämer
CIO
Twitter: @anynines

- ----
Geschäftsführer: Alexander Faißt, Dipl.-Inf.(FH) Julian Fischer
Handelsregister: AG Saarbrücken HRB 17413, Ust-IdNr.: DE262633168
Sitz: Saarbrücken
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

iQEcBAEBAgAGBQJSpcMfAAoJELxFogM4ixOF/ncH/3L9DvOWHrF0XBqCgeT6QQ6B
lDwtXiD9xoznht0Zs2S9LA9Z7r2l5/fzMOUSOawEMv6M16Guwq3gQ1lClUi4Iwj0
GKKtYQ6F4aG4KXHY4dlu1QKT5OaLk8ljCQ47Tc9aAiJMhfC1/IgQXOslFv26utdJ
N9jxiCl2+r/tQvQRw6mA4KAuPYPwOV+hMtkwfrM4UsIYGGbkNPnz1oqmBsfGdSOs
TJh6+lQRD9KYw72q3I9G6ZYlI7ylL9Q7vjTroVKH232pLo4G58NLxyvWvcOB9yK6
Bpf/gRMxFNKA75eW5EJYeZ6EovwcyCAv7iAm+xNKhzsoZqbBbTOJxS5zKm4YWoY=
=bDly
-----END PGP SIGNATURE-----
-------------- next part --------------
A non-text attachment was scrubbed...
Name: hkraemer.vcf
Type: text/x-vcard
Size: 277 bytes
Desc: not available
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20131209/d70112ef/attachment.vcf>