From: Michael Monnerie <michael.monnerie@is.it-management.at>
To: xfs@oss.sgi.com
Cc: Richard Ems <richard.ems@cape-horn-eng.com>
Subject: Re: creating a new 80 TB XFS
Date: Mon, 27 Feb 2012 12:56:57 +0100 [thread overview]
Message-ID: <2897177.rcH5T34bLh@saturn> (raw)
In-Reply-To: <4F478818.4050803@cape-horn-eng.com>
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Am Freitag, 24. Februar 2012, 13:52:40 schrieb Richard Ems:
> The raw storage space will then be 28 x 3 TB = 84 TB.
Please remember that it will be 2,79 TiB per drive, that's 78 TiB
overall. So it's missing 6 TB in reality, depending on how you
calculated the source space you have and backup space you need. In
Multi-TB environments people still are surprised by the big "rounding
error" from harddisk TB to real TiB. And I've had customers who couldn't
even do their first backup, as the backup system was full already. They
calculated backup space only for one backup, and without the TB->TiB
conversion.
https://en.wikipedia.org/wiki/Byte
--
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc
it-management Internet Services: Protéger
http://proteger.at [gesprochen: Prot-e-schee]
Tel: +43 660 / 415 6531
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next prev parent reply other threads:[~2012-02-27 11:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-24 12:52 creating a new 80 TB XFS Richard Ems
2012-02-24 14:08 ` Emmanuel Florac
2012-02-24 15:43 ` Richard Ems
2012-02-24 16:20 ` Martin Steigerwald
2012-02-24 16:51 ` Stan Hoeppner
2012-02-25 10:59 ` Martin Steigerwald
2012-02-24 16:58 ` Roger Willcocks
2012-02-25 21:57 ` Peter Grandi
2012-02-26 2:57 ` Stan Hoeppner
2012-02-26 16:08 ` Emmanuel Florac
2012-02-26 16:55 ` Joe Landman
2012-02-24 14:52 ` Peter Grandi
2012-02-24 14:57 ` Michael Weissenbacher
2012-02-24 16:05 ` Richard Ems
2012-02-24 15:17 ` Eric Sandeen
2012-10-01 14:28 ` Richard Ems
2012-10-01 14:36 ` Richard Ems
2012-10-01 14:39 ` Eric Sandeen
2012-10-01 14:45 ` Richard Ems
2012-02-27 11:56 ` Michael Monnerie [this message]
2012-02-27 12:20 ` Richard Ems
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