From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q1RBv39s053254 for ; Mon, 27 Feb 2012 05:57:03 -0600 Received: from mailsrv14.zmi.at (mailsrv14.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id trYID5XrJ2g1PeEQ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 27 Feb 2012 03:57:00 -0800 (PST) From: Michael Monnerie Subject: Re: creating a new 80 TB XFS Date: Mon, 27 Feb 2012 12:56:57 +0100 Message-ID: <2897177.rcH5T34bLh@saturn> In-Reply-To: <4F478818.4050803@cape-horn-eng.com> References: <4F478818.4050803@cape-horn-eng.com> MIME-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============6444359729370014012==" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Cc: Richard Ems --===============6444359729370014012== Content-Type: multipart/signed; boundary="nextPart5630910.kUIWtkkh4g"; micalg="pgp-sha1"; protocol="application/pgp-signature" Content-Transfer-Encoding: quoted-printable --nextPart5630910.kUIWtkkh4g Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Am Freitag, 24. Februar 2012, 13:52:40 schrieb Richard Ems: > The raw storage space will then be 28 x 3 TB =3D 84 TB. Please remember that it will be 2,79 TiB per drive, that's 78 TiB=20 overall. So it's missing 6 TB in reality, depending on how you=20 calculated the source space you have and backup space you need. In=20 Multi-TB environments people still are surprised by the big "rounding=20= error" from harddisk TB to real TiB. And I've had customers who couldn'= t=20 even do their first backup, as the backup system was full already. They= =20 calculated backup space only for one backup, and without the TB->TiB=20= conversion. https://en.wikipedia.org/wiki/Byte --=20 mit freundlichen Gr=C3=BCssen, Michael Monnerie, Ing. BSc it-management Internet Services: Prot=C3=A9ger http://proteger.at [gesprochen: Prot-e-schee] Tel: +43 660 / 415 6531 --nextPart5630910.kUIWtkkh4g Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iEYEABECAAYFAk9Lb4kACgkQzhSR9xwSCbT3XQCdGs+7lqZcIm7kiTARX+8njT3V RoIAoKwEC+nlkItlbnXIyQhk53Q1wLmQ =NV2l -----END PGP SIGNATURE----- --nextPart5630910.kUIWtkkh4g-- --===============6444359729370014012== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs --===============6444359729370014012==--