Re: tar with LTO2

2007-07-09 Thread Jim Zajkowski
On Jul 9, 2007, at 10:46 AM, Michael Green wrote: However, tar'ing the actual target directory revealed that the data is flowing at extremely low rates - less than 100kb/sec. In the few cases we've had to write actual tars to tape, we usually run it through a double-buffer using dd: tar cf

Re: tar with LTO2

2007-07-09 Thread Len Boyle
Green Sent: Monday, July 09, 2007 10:47 AM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] tar with LTO2 This post is a bit offtopic, but still I decided to send ti here because it's probably one of the very few places where large amount backup administrators that are invested in IBM equipment

Re: tar with LTO2

2007-07-09 Thread Richard Sims
On Jul 9, 2007, at 10:46 AM, Michael Green wrote: However, tar'ing the actual target directory revealed that the data is flowing at extremely low rates - less than 100kb/sec. Two major factors affect this: 1. File system state, fragmentation, and disk capabilities. 2. The tar block size choi

tar with LTO2

2007-07-09 Thread Michael Green
This post is a bit offtopic, but still I decided to send ti here because it's probably one of the very few places where large amount backup administrators that are invested in IBM equipment come together. My question is related to using old school tar with IBM LTO2 drives. I was asked to archive