Re: DLT1 Tape drive performance...

2004-11-06 Thread Dan Brown
Paul Bijnens wrote: Dan Brown wrote: I adjusted the tapebufs setting from 20 to 128, and the DLT drive now writes for around 10 seconds before stopping and seeking. I've adjusted it to 256 to see what happens once I need to flush the holding disk again. I think because of the fact the holding

Re: DLT1 Tape drive performance...

2004-11-05 Thread Paul Bijnens
Dan Brown wrote: This may be a problem then as the IDE holding disk is NFS mounted from a third machine. The server with the backup is a SCSI only system and doesn't support IDE. That's bad indeed, unless you have gigabit ethernet (and even then maybe not). drive (+$700CDN / 80GB?!) nor even

Re: DLT1 Tape drive performance...

2004-11-04 Thread Jon LaBadie
On Thu, Nov 04, 2004 at 05:38:13PM -0600, Dan Brown wrote: > > This may be a problem then as the IDE holding disk is NFS mounted from a > third machine. The server with the backup is a SCSI only system and > doesn't support IDE. It was worth neither the cost of an expensive SCSI > drive (+$7

Re: DLT1 Tape drive performance...

2004-11-04 Thread Dan Brown
Paul Bijnens wrote: Dan Brown wrote: During a backup, or a flush, the tape drive writes data for 4 seconds, then rewinds for 1 second, then writes for 4 seconds, then rewinds for 1 second, etc. This seems like a good way to wear out a drive. That's usually a symptom of a too fast tapedrive connecte

Re: DLT1 Tape drive performance...

2004-11-04 Thread Paul Bijnens
Dan Brown wrote: During a backup, or a flush, the tape drive writes data for 4 seconds, then rewinds for 1 second, then writes for 4 seconds, then rewinds for 1 second, etc. This seems like a good way to wear out a drive. That's usually a symptom of a too fast tapedrive connected to a too slow serv

Re: DLT1 Tape drive performance...

2004-11-03 Thread Frank Smith
--On Wednesday, November 03, 2004 13:50:51 -0600 Dan Brown <[EMAIL PROTECTED]> wrote: > I've never really thought about this before until I had our DLT drive sitting beside > our desk during some renovations. What should the average DLT1 tape drive perform > like during backup? > Ours happens to

Re: DLT1 Tape drive performance...

2004-11-03 Thread Glenn English
On Wed, 2004-11-03 at 12:50, Dan Brown wrote: > During a backup, or a flush, the tape drive writes data for 4 seconds, then rewinds > for 1 second, then writes for 4 seconds, then rewinds for 1 second, etc. > This seems like a good way to wear out a drive. I had a very similar "shoe polishing" p

DLT1 Tape drive performance...

2004-11-03 Thread Dan Brown
I've never really thought about this before until I had our DLT drive sitting beside our desk during some renovations. What should the average DLT1 tape drive perform like during backup? Ours happens to be a Lacie DLT1 (a Quantum DLT1 in a LaCie enclosure basically) which is used to backup appro