Re: Production cluster planning

[mabi <mabi@xxxxxxxxxxxxx>]

I was wondering with your setup you mention, how high are your context switches? I mean what is your typical average context switch and what are your highest context switch peeks (as seen in iostat).

Best,

M.

-------- Original Message --------

Subject: Re: [Gluster-users] Production cluster planning

Local Time: October 26, 2016 10:31 PM

UTC Time: October 26, 2016 8:31 PM

From: lindsay.mathieson@xxxxxxxxx

To: Gandalf Corvotempesta <gandalf.corvotempesta@xxxxxxxxx>

gluster-users <gluster-users@xxxxxxxxxxx>

On 27/10/2016 3:53 AM, Gandalf Corvotempesta wrote:

> Are you using any ZFS RAID on your servers?

Yah, RAID10.

- Two nodes with 4 WD 3TB RED

- One node with 2 WD 3TB reds and 6 * 600MB SAS Velocirtprs

High Endurance High Speed SSD's for SLOG devices on each node. Std SSD's

don't cut it, I've run through a lot of them. ZFS/Gluster/VM Hosting

generates an extraordinary amount of writes. And the quoted write speeds

for most SSD's are for *compressible* data, their performance goes to

shit when you write pre-compressed data to them, which I have activated

for ZFS.

--

Lindsay Mathieson

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