From owner-freebsd-current Thu Apr 30 18:39:59 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA00177 for freebsd-current-outgoing; Thu, 30 Apr 1998 18:39:59 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from khavrinen.lcs.mit.edu (khavrinen.lcs.mit.edu [18.24.4.193]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA00163 for ; Thu, 30 Apr 1998 18:39:57 -0700 (PDT) (envelope-from wollman@khavrinen.lcs.mit.edu) Received: (from wollman@localhost) by khavrinen.lcs.mit.edu (8.8.8/8.8.8) id VAA06214; Thu, 30 Apr 1998 21:39:55 -0400 (EDT) (envelope-from wollman) Date: Thu, 30 Apr 1998 21:39:55 -0400 (EDT) From: Garrett Wollman Message-Id: <199805010139.VAA06214@khavrinen.lcs.mit.edu> To: Karl Denninger Cc: Jason Nordwick , freebsd-current@FreeBSD.ORG Subject: Re: Time to get a backup device, suggestions ? In-Reply-To: <19980430183155.46401@mcs.net> References: <19980430213741.27185.qmail@xcf.berkeley.edu> <19980430183155.46401@mcs.net> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG < said: > You're dangerously close to needing "big league" backup capacity; DLTs are > currently "god" in that area, both in terms of capacity and transfer rate. Actually, ``god'' in that area is a box made by Ampex called DST that's about twice the size of a VCR, uses $150 15"x6"x2" tapes, and costs about $150,000 a pop for the transport. (They tried to sell us one, but we'd have to pay two FTEs to change tapes before that would be cost-effective.) They sell boatloads of the things to outfits like banks (usually with a $2 million library system attached). > We run 2 15/30G 2000XT DLT drives. Next step up for us is DLT7000s - those > suckers are EXPENSIVE, but they are both large (20/40G) and fast (best speed > out there right now). We bought DDS-3 drives in our latest round of machines. They are incredibly cheap, and the vendor claims they do 24G on a single tape. Only fly in the ointment: our stock room doesn't carry DDS-3 tapes, and I don't know how much they cost (probably a lot more than DDS-2 tapes, which go for peanuts). -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message