Date: Thu, 12 Jun 2003 12:44:17 -0700 From: "Max Clark" <max.clark@media.net> To: <freebsd-isp@freebsd.org>, <freebsd-questions@freebsd.org> Subject: 3+ TB Storage... CCD, growfs, etc... Message-ID: <ILENIMHFIPIBHJLCDEHKAEBKCFAA.max.clark@media.net>
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Hi all, I am looking at the promise ultratrak RM 15000 (http://www.promise.com/product/product_detail_eng.asp?productId=109&familyI d=6) Raid appliance with a 3TB disk configuration. This box connects to the host with a SCSI 160 interface which is no problem, and as I understand it UFS2 is 64 bit so I am not constrained by a 2TB filesystem limit. The smallest size file on this box will be 11GB, and there will be lots of them. My questions are. 1) What is the maximum filesystem size with UFS2? Are there any special tuning parameters that I should be aware of that will better optimize the disk? 2) How much CPU/Ram would be suggested per TB of disk attached? 3) If I wanted to eventually strip two+ of these external boxes what would I need to do? Given this configuration would Vinum or CCD be better? Why? Oh... and this will be running Samba to serve these files to windows pc's over 1Gb copper ethernet. Thanks in advance, Max
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