Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-08 Thread scott . george
@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Dedupe ratios and checkpoint backups Haven?t done any comparisons but we use checkpoint for our big ERP DB (near 6 TB) backup and still get good compression ratios. There is nothing that has made me think I need to look at it or tweak it to get better. I?d

Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-08 Thread William Brown
] On Behalf Of scott.geo...@parker.com Sent: 08 September 2011 12:19 To: veritas-bu@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Dedupe ratios and checkpoint backups I think the question was: where is that file located when it is created, and does it then get backed up by the job doing

Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-07 Thread Rusty Major
...@mailman.eng.auburn.edu] *On Behalf Of *Lightner, Jeff *Sent:* Tuesday, September 06, 2011 3:23 PM *To:* scott.geo...@parker.com; veritas-bu@mailman.eng.auburn.edu *Subject:* Re: [Veritas-bu] Dedupe ratios and checkpoint backups Haven’t done any comparisons but we use checkpoint for our big ERP DB

Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-07 Thread David Stanaway
*To:* scott.geo...@parker.com mailto:scott.geo...@parker.com; veritas-bu@mailman.eng.auburn.edu mailto:veritas-bu@mailman.eng.auburn.edu *Subject:* Re: [Veritas-bu] Dedupe ratios and checkpoint backups Haven't done any comparisons but we use checkpoint for our big ERP DB (near 6 TB) backup and still get

Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-06 Thread scott . george
If at all, this would probably affect fixed-block solutions more than the variable-block ones. The variable-blocked solutions would continue to look for identical blocks, but in different positions of the data stream. From: Stafford, Geoff gstaff...@barclaycardus.com To:

Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-06 Thread scott . george
of knowing if checkpoints were the culprit for the NBU5000 getting the lesser ratio, but it does present a plausible theory. From: scott.geo...@parker.com To: veritas-bu@mailman.eng.auburn.edu veritas-bu@mailman.eng.auburn.edu Date: 09/06/2011 02:54 PM Subject: Re: [Veritas-bu] Dedupe ratios

Re: [Veritas-bu] Dedupe ratios and checkpoint backups

2011-09-06 Thread Lightner, Jeff
, September 06, 2011 3:06 PM To: veritas-bu@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Dedupe ratios and checkpoint backups To answer your question, we tested both the NBU 5000 (Symantec) and the DD860 (Data Domain) and the differences couldn't be more stark. I was using a 30 minute