On Friday, May 02, 2014 03:56:20 PM Howard White wrote: > On 05/02/2014 03:06 PM, Bill Woody wrote: > > Did I leave my punch cards at the last meeting? > > I'm sorry Bill. I believe I missed the announcement for the 150TB hard > disks. > > So long as LTO cartridges were the same volume and more expensive than > comparable hard drives (RDX), tapes became the dinosaur Bill describes. > LTO drive $3000-$6000 and $60-$100 for a 6TB tape compared to a 6TB > SATA hard disk for $300-$600. Obviously, a backup scheme requires more > than one tape or more than one disk. > > BTW - 12TB on one spindle??? <shudder> > > So the viability of any new tape technology has to make the above > economic dynamic work in its favor. Likewise, the time it takes to > WRITE 150TB to the drive has to be within somebodies' backup window. > > The speed of light is a constant... > > Howard
Along these lines, Tape, well above HDD is portable. This is the problem disk still has not overcome. This makes tape much more valuable for backup and Last Resort Disaster Recovery of most types of data. The benefit being that you can take your tapes anywhere in the country and if you have a contract with a DR company (such as Sungard or IBM) you can put your tapes anywhere and recover. By now, companies should be thinking along the lines of Business continuity with DR as last resort, and backups should be going to disk for small - medium recoveries (files / directory restores). Most Databases now are well above the double digits in TB size which makes recovery from any medium take far too long, so if you're not replicating that data to a warm site, you're in trouble if you're DC dies. Having managed TSM systems, and server systems for years, I can tell you that just plain ole' file server data is too large to expect timely recovery from tape (no matter what Backup software you're using) depending on how that was setup. Unless Sony has addressed that problem, they are a day late and a dollar short. -- See Ya' Howard Coles Jr. John 3:16 -- -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en --- You received this message because you are subscribed to the Google Groups "NLUG" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
