I would recommend D2D2T for the backups that really matter. You can improve the speed of writing and the fill % of the media to cut cost. But if you drop and break a tape you lose one day of some backups. If you corrupt your disk you likely lose all your backups of everything. If your luck is in you can replicate that corruption to your second copy.
Now you might well not keep all backups on tape – maybe production servers only, maybe not many copies, maybe not all the incrementals. Also, any long retention you want to avoid power costs – tape is cheap to store long term. William D L Brown From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of WEAVER, Simon (external) Sent: 07 October 2010 11:45 To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] D2D or Tape Libraries All Just wanted some views on this.... Been using Tape backups + Robots for years, and only lately things have been going wrong! Decisions seem to be made about removing tape backups (maybe using them for monthly) and going to D2D solutions only. Anyone got views on this? Pros or cons? I do not mind D2D but I also like the "feel" of Tapes and storing them outside a site in a secure safe! Cannot do that with a EVA System ! Note: D2D is not to go to tape, remains on disk until it expires. Regards Simon This email (including any attachments) may contain confidential and/or privileged information or information otherwise protected from disclosure. If you are not the intended recipient, please notify the sender immediately, do not copy this message or any attachments and do not use it for any purpose or disclose its content to any person, but delete this message and any attachments from your system. Astrium disclaims any and all liability if this email transmission was virus corrupted, altered or falsified. -o- Astrium Limited, Registered in England and Wales No. 2449259 Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, England ________________________________ This e-mail was sent by GlaxoSmithKline Services Unlimited (registered in England and Wales No. 1047315), which is a member of the GlaxoSmithKline group of companies. The registered address of GlaxoSmithKline Services Unlimited is 980 Great West Road, Brentford, Middlesex TW8 9GS. ----------------------------------------------------------- This e-mail was sent by GlaxoSmithKline Services Unlimited (registered in England and Wales No. 1047315), which is a member of the GlaxoSmithKline group of companies. The registered address of GlaxoSmithKline Services Unlimited is 980 Great West Road, Brentford, Middlesex TW8 9GS. -----------------------------------------------------------
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