We have so many input/output errors in daemon.log everyday also. However, after my investigation, I found that all of these errors are because the Networker server issue two “nsrjb” commands at exactly the same time. How can they expect a tape library load two tapes simultaneously even I have enabled the fastload feature??? Networker server do create the error itself and I don’t think it is a hardware problem.
The log below is an example of those input/output errors:
daemon.log
10/29/02 06:31:02 PM nsrd: savegroup info: starting SQLDumpDaily1 (with 1 client(s))
10/29/02 06:31:49 PM nsrd: media info: suggest mounting HK0841 on hkgtape for writing to pool 'Daily'
10/29/02 06:31:51 PM nsrd: media waiting event: Waiting for 1 writable volumes to backup pool 'Daily' tape(s) on hkgtape
10/29/02 06:31:51 PM nsrd: media info: suggest mounting HK0834 on hkgtape for writing to pool 'Daily'
10/29/02 06:31:53 PM nsrd: media event cleared: Waiting for 1 writable volumes to backup pool 'Daily' tape(s) on hkgtape
10/29/02 06:31:53 PM nsrd: media waiting event: Waiting for 2 writable volumes to backup pool 'Daily' tape(s) on hkgtape
10/29/02 06:32:11 PM nsrd: media info: loading volume HK0841 into \\.\Tape3
10/29/02 06:32:17 PM nsrd: Jukebox 'STKL180' failed: SJI Failure[0x 29]: Input/output error
10/29/02 06:32:24 PM nsrd: Jukebox 'STKL180' failed: Input/output error
10/29/02 06:32:24 PM nsrd: Jukebox 'STKL180' failed: Input/output error
10/29/02 06:33:52 PM nsrd: media info: loading volume HK0834 into \\.\Tape1
10/29/02 06:34:09 PM nsrd: \\.\Tape3 Verify label operation in progress
10/29/02 06:34:13 PM nsrd: \\.\Tape3 Mount operation in progress
nsrjb history
10/29/02 06:31:54 PM nsrjb -j STKL180 -O1 -l -M HK0841
10/29/02 06:31:54 PM nsrjb -j STKL180 -O2 -l -M HK0834
10/29/02 06:32:24 PM nsrjb -j STKL180 -O3 -l -M HK0834
10/29/02 06:32:34 PM nsrjb -j STKL180 -O4 -l -M HK0834
10/29/02 09:00:34 PM nsrjb -j STKL180 -O5 -l -M HK0838
You can reproduce the problem if you load two tape in separate DOS prompt.