Bug 19646

Summary: Level 0 dump takes way longer than it should on 300GB scsi disk
Product: Base System Reporter: paulo <paulo>
Component: miscAssignee: freebsd-bugs (Nobody) <bugs>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: Unspecified   
Hardware: Any   
OS: Any   

Description paulo 2000-07-02 18:30:00 UTC 
Sitting on a Compaq 500Mhz pentium box I have two adaptec 2940UW scsi
cards and one Advansys 3940UW.  The two disks on the 2940UW cards
function without a problem  The 300GB disk (raidv box) on the 3940UW
has difficulty doing a dump.  A level 0 dump of 75GB that should take less than 9 hours takes upwards of 24.  Unlike one of the other disks that takes only 8 or 9 hours.  All disks on the machine are different.

some output...
DUMP: mapping (Pass II) [directories]
  DUMP: estimated 74690022 tape blocks.
  DUMP: dumping (Pass III) [directories]
  DUMP: 0.09% done, finished in 92:27
  DUMP: 0.15% done, finished in 113:28
  DUMP: 0.20% done, finished in 122:14
  DUMP: 0.26% done, finished in 127:50
  DUMP: 0.32% done, finished in 131:22
  DUMP: 0.37% done, finished in 132:52
  DUMP: 0.43% done, finished in 134:17
  DUMP: 0.49% done, finished in 135:12
  DUMP: 0.55% done, finished in 136:01
  DUMP: 0.60% done, finished in 138:56
  DUMP: 0.63% done, finished in 145:10
  DUMP: 0.66% done, finished in 151:25
  DUMP: 0.68% done, finished in 158:02
  DUMP: 0.70% done, finished in 164:27
  DUMP: 0.73% done, finished in 170:39
  DUMP: 0.75% done, finished in 176:36
etc....

How-To-Repeat: Do a dump.
Comment 1 paulo 2000-12-13 22:40:59 UTC 
It was the Advansys 3940UW card that the SCSI is hanging off.  Hopefully

the 3940UW problem will be addressed at some point and I can use it
again.
Comment 2 dd freebsd_committer freebsd_triage 2001-04-29 03:51:10 UTC 
State Changed
From-To: open->closed

Originator reports that this is not a dump problem.