D2D might require a lot more storage than you estimate. Think of how often you buy new tapes.
However, that can be mitigated with dedupe solutions like Data Domain. Also Data Domain offers syncing to an offsite unit of the same type. Also the big disk array manufacturers due have things that allow you to sync from one array to another. (However, this is typically a one off kind of thing - the next sync overwrites the previous one.) You'd have to pay the offsite vendor for floor space, networking and power though. Haven't priced that myself but suspect it wouldn't be cheaper than tapes. Also with "permanent" storage on disk as opposed to tape you always take the risk that the remote storage might die and kill all your backups. Tapes can degrade but you are far less likely to lose all your offsite tapes at one fell swoop. ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of WEAVER, Simon (external) Sent: Thursday, October 07, 2010 6:45 AM To: [email protected] 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 Proud partner. Susan G. Komen for the Cure. Please consider our environment before printing this e-mail or attachments. ---------------------------------- CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential information and is for the sole use of the intended recipient(s). If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you. ----------------------------------
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