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Problem with Database backup

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# 1  
Old 02-28-2008
Problem with Database backup
Hi! This is my first post and im not that familiar with UNIX but I'll try to explain my problem..

I have a server here at work running Open UNIX Release 8.0.0

It has a special application on it that I'm trying to run a database backup on. For the last 2 weeks this has failed.. Usually the backup takes 1 hour to run but now it failes after 8 hours (often have to reboot the machine in the morning for the users to be able to access the application again)

I have the backup log that i can attach but its very large.. And im not sure it will say anything...

I have some CPU and Disk activity output for you.. But my question is basicly is there some way i can see what is happening.. What the system is trying to write where? To find out why it failes?

The backup has been running for 1h 45min as i write this and it have some heavy disk activity on the c0b0t0d0s1 "slice?" all the time.. Is this /dev/root partition/slice?

Code:
07:45:30    %usr   %sys   %wio  %idle  %intr
08:00:00       3      4     45     49      0
08:20:00       1      4     95      1      0
08:40:00       1      4     95      1      0
09:00:00       1      4     95      1      0
Average        1      4     85     10      0

filesystem          kbytes   used     avail    capacity  mounted on
/dev/root           460800   291847   168953   64%       /
/dev/stand          20480    7332     13148    36%       /stand
/dev/dsk/c0b0t0d0s5 1024000  837202   186798   82%       /var
/proc               0        0        0         0%       /proc
/dev/fd             0        0        0         0%       /dev/fd
/dev/_tcp           0        0        0         0%       /dev/_tcp
/processorfs        0        0        0         0%       /system/processor
/dev/dsk/c0b0t0d0s4 204800   83918    120882   41%       /home
/dev/dsk/c0b0t0d0s6 819200   62788    756412    8%       /var/col
/dev/dsk/c0b0t0d0s9 819200   52406    766794    7%       /SWS
/dev/dsk/c0b0t0d0sb 1536000  1344794  191206   88%       /opt
/dev/dsk/c0b0t0d0sc 614400   115204   499196   19%       /.AS/SWS
/dev/dsk/c0b0t0d0sd 77188096 5642228  71545868  8%       /.AS/BACKUP     

09:24:34 device         MB       %busy   avque   r+w/s  blks/s  avwait  avserv
09:24:35 c0b0t0d0s1     450         99     1.1     149     386     0.5     6.6
09:24:35 c0b0t0d0s5     1000        31     1.5      13      64    11.5    23.8
09:24:35 c0b0t0d0s11    1500        12    12.7      19     304    73.7     6.3
09:24:35 c0b0t0d0s15    2047         7     1.0      10     164     0.0     7.0
09:24:35 c0b0t0d0       138799      99     3.1     191     918    11.1     5.2

Last edited by TaZ; 02-28-2008 at 05:36 AM..
# 2  
Old 02-28-2008
I will attach a logfile from the database backup. A backup is started every night at 02:00 and usally takes 1 hour to complete.

I notice that the days before the backup starts to fail the backup takes longer and longer time. Last successful day before failure it took 6h 20min to complete.

Not it gets interupted 10:14 every day if i do not reboot the server before that. (Means it runs 8h 14min and then abort)

By the way.. The database is Informix.
unixlog.txt (41.0 KB) 
# 3  
Old 03-20-2008
No reply Smilie
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