[gpfsug-discuss] Spectrum Scale RAID usable space

Mark.Bush at siriuscom.com Mark.Bush at siriuscom.com
Wed Oct 12 23:25:48 BST 2016


GL2 with 6TB drives.

From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Andrew Beattie <abeattie at au1.ibm.com>
Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: Wednesday, October 12, 2016 at 4:58 PM
To: "gpfsug-discuss at spectrumscale.org" <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] Spectrum Scale RAID usable space

Hi Mark,

If you let me know which model ESS  and what drive size I can give you the possible capacities.
there are effectively 4 options

8+2P
8+3P
3-way replication
4-way replication

for example:
GL6 - 8TB drives
Possible capacity options:
8+2P - 2,036TB
8+3P - 1,851TB
3 Way - 848TB
4 Way - 636TB
[cid:image002.png at 01D224AD.AB668310]

Business Partners:  http://www.ibm.com/partnerworld/wps/servlet/ContentHandler/SSPQ048068H83479I86
There is a ESS capacity calculator in the same set of BP links with Capacity Magic and Disk magic


Andrew Beattie
Software Defined Storage  - IT Specialist
Phone: 614-2133-7927
E-mail: abeattie at au1.ibm.com<mailto:abeattie at au1.ibm.com>


----- Original message -----
From: "Mark.Bush at siriuscom.com" <Mark.Bush at siriuscom.com>
Sent by: gpfsug-discuss-bounces at spectrumscale.org
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Cc:
Subject: [gpfsug-discuss] Spectrum Scale RAID usable space
Date: Thu, Oct 13, 2016 7:19 AM



Anyone know how to calculate this?  I realize this is an ESS thing now but I wonder if someone on here knows how to extrapolate usable space.





Thanks



Mark

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