Bug 4644

Summary: dump-0.4b4-9.i386.rpm doesn't read blocksize variable correctly
Product: [Retired] Red Hat Raw Hide Reporter: steveh
Component: dumpAssignee: Nalin Dahyabhai <nalin>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 1.0CC: steveh
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 1999-08-30 23:28:48 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description steveh 1999-08-22 02:08:11 UTC
After installing dump-0.4b4-9.i386.rpm, my backup script
started failing, with a "DUMP: Please choose a blocksize <=
64KB" message, and a commandline that read:

/sbin/rdump 0ubdsf 126 62500 76800 poplar:/dev/rmt/0n /

Rolling back to dump-0.3-17.i386.rpm fixed the problem.


P233 RH6.0 32Mb RAM 4.3Gb drive remotely backing up to
Solaris 2.6 Sparc 10 server onto an Exabyte 8mm tapedrive.


Comment 1 Jeff Johnson 1999-08-23 17:35:59 UTC
This a feature not a bug. There are few performance gains (and
possible losses!) with large block sizes due to max TCP window
sizes and/or physical DMA allocation.

Does dump-0.4b4 with 64K buffers run significantly slower than
dump-0.3 with 768K buffers to solaris server? Are you sure that
the blocksize and not some other factor that is the rate limiting

Comment 2 Cristian Gafton 1999-08-27 23:25:59 UTC
jbj is the dump guru.