dmesg output

[Vikas_2]

Hi all,
In my L1000 server,"dmesg" output shows only the single repeted line (vxfs: mesg 001: vx_nospace - /dev/vg00/lvol9 file system full (1 block extent)). But the said file system is only 30% full, rather it never went beyond 50%. I was expecting the normal output, talking about the boot messages but it is just different.
Please help.

Thanks
Vikas

[Rob Mallard]

File system full messsages are written to the message buffer, so if the repeat they can fill the buffer displacing the startup stuff you are used to seeing. Don't dispare, the same info was written to the syslog file and should be right at the top.

About the FS full message /dev/vg00/lvol9 is usually mounted at /var. This is a dynamic file system and can quickly fill with print jobs or temporary app files. etc. These files disappear when the system the application is finished with them. Could this system be filling up with temp files that arr gone now. Check /var/adm/syslog/syslog.log , it will have FS full messages also, along with date/time stamps. This may give you a clue as to what is happening.

[Ovidiu D. Raita]

I guess your file system was full at some point in time. Unfortunately the buffer size is limited and you loose the old messages

Ovidiu

[Rita C Workman]

dmesg can report old message information...here's the explanation:

http://my1.itrc.hp.com/cm/QuestionAnswer/1,1150,0x87657e990647d4118fee0090279cd0f9,00.html

If you've done a bdf and checked your syslog..your ok.

/rcw

[Anthony Goonetilleke]

Backup the filesystem execute newfs on the filesystem and restore the filesystem. I have seen this happen before and there is even a technote on it in the ITRC,
You could also try adding more contiguos space to the filesystem or running defrag on it have a look at Document Id : A5740417

[Vikas_2]

Thanks a lot guys. I noticed in syslog that the FS was full last week. Is there any way I can clear the buffer?

Thanks

[Rob Mallard]

If you run dmesg with the - option:

dmesg -

you will only see the new messages added since the time you ran dmesg -

[Rita C Workman]

Sorry about that wrong url before...I bet I flipped and the other one got yours..

Anyway the answer is that you can reboot to clear it...or wait until the buffer rolls the old info out on its own.

Here's a url on it...(let's hope I paste the right one..it's Monday !)
http://us-support2.external.hp.com/cki/bin/doc.pl/sid=9807c2bc17785b6e20/screen=ckiDisplayDocument?docId=200000024602800