are LTO4 already in the market? We are getting info that won't be available until beginning of next year.
The best solution right now is mixing disk and tapes backups: VTL (Virtual Tape Library). But it's a little bit pricey for a small businesses, although I believe there could be open source or free (or close to free) solutions. Tapes are good to manage and take them to a firesafe place (not only good in the case of fire but also in the case of robbery or flooding or any other disaster). We are using Netbackup at work and have saved our asses almost every week. Netbackup marks tapes that are no good so you can discard them. I've seen a business spending around $12,000 to recover data for having no backups (which is close to have a bad backup policy) because a RAID array failed after a battery replacement. We have evolved our pure-tape-LTO backups to a VTL. This is great since backups and restores from disk take nothing to be done and you can decide which information will be exported to tapes (you can keep email and user data on disk for instance). I guess you can dimension it as you want: from just an old server with a huge hard drive and a LTO tape drive to a more reliable RAID array with a robot. It always depends on your budget. Regards, Miguel --- El mié, 16/9/09, Sam Cayze <[email protected]> escribió: > De: Sam Cayze <[email protected]> > Asunto: RE: Disk based backup > Para: "NT System Admin Issues" <[email protected]> > Fecha: miércoles, 16 septiembre, 2009 1:32 > Sounds about right, I am getting > 1,500MB/MIN (25MB/SEC) on my backups. > And iirc my restores were about 20MB/Sec going to bare > metal RAID5. > > What speeds do you see with LTO? Has the reliability of > tapes increased > in your opinion? > > Good info, thanks as always. > > Sam > > -----Original Message----- > From: Ken Schaefer [mailto:[email protected]] > > Sent: Tuesday, September 15, 2009 11:04 PM > To: NT System Admin Issues > Subject: RE: Disk based backup > > eSata will be about 1.5x what you can get with USB only > (assuming you > are copying to a single target disk). I've generally found > that USB2 > peaks at around 15-20MB/sec, and eSATA is around > 25-30MB/sec (max) > > With LTO4 - if you are copying from a single disk, then the > limitation > will be the source, not the destination. Likewise with > restores, you'll > probably be bottlenecked by the target if it's a single > spindle. > > Cheers > Ken > > -----Original Message----- > From: Sam Cayze [mailto:[email protected]] > Sent: Wednesday, 16 September 2009 1:41 PM > To: NT System Admin Issues > Subject: RE: Disk based backup > > Wow! Had no idea. I've been on eSATA drives for years > now, ditched > tapes for the speed and reliability. > Ken, do the restore speeds also show this type of > performance? Because > ultimately that's what matters, right. > > -----Original Message----- > From: Ken Schaefer [mailto:[email protected]] > Sent: Tuesday, September 15, 2009 10:36 PM > To: NT System Admin Issues > Subject: RE: Disk based backup > > USB connected drives are way too slow. LTO4 alone should > get you 5x-6x > the speed of a USB connected drive (YMMV) > > Cheers > Ken > > -----Original Message----- > From: Benjamin Zachary - Lists [mailto:[email protected]] > Sent: Wednesday, 16 September 2009 9:14 AM > To: NT System Admin Issues > Subject: RE: Disk based backup > > Why not just take some external drives and mount them in > whatever you > use (BEX/UB etc) and rotate the drives. > > At 79 bucks for a 1TB SATA, or 89 for a USB version, you > could do a 5 > day rotation for 2 weeks for 900 dollars if you can get the > data on 1tb. > > > If you want to be more involved do the backups with deltas > so you only > do changes throughout the week and should be good. With the > drives being > so fast restoring through 3-4 usb drives isn't really a big > deal, not > like waiting 30 mins for cataloging a tape.. > > ~ Finally, powerful endpoint security that ISN'T a resource > hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> > ~ > > > ~ Finally, powerful endpoint security that ISN'T a resource > hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> > ~ > > > ~ Finally, powerful endpoint security that ISN'T a resource > hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> > ~ > > > ~ Finally, powerful endpoint security that ISN'T a resource > hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> > ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
