HP-UX Error: 6: No such device or address

[Saul O. Reyes]

I checked by Oracle backups this morning which failed. I have done some investigating and found that RMAN backup indicated the following error:
HP-UX Error: 6: No such device or address

I then checked the syslog and found:
Apr 18 23:03:24 elauux01 vmunix: vxfs: mesg 056: vx_dataioerr - /dev/vg03/u06 file system file data write error^M
Apr 18 23:03:27 elauux01 vmunix: vxfs: mesg 033: vx_check_badblock - /dev/vg03/u06 file system had an I/O error, setting VX_
FULLFSCK^M

Any ideas?

[Jeff Schussele · Accepted solution]

Hi Saul,

Msg appears to me to be indicating that a drive in the vg03 VG, specifically a drive in the LV that u06 is using, is giving I/O errors. If you can find no SCSI specific errors in syslog or dmesg that indicate exactly which disk then I would suggest you use the stm diag utils to exercise all disks in the LV to discover the culprit.

HTH,
Jeff

[Helen French]

Hi,

Check this out (TKB # KBRC00000370):

http://us-support.external.hp.com/cki/bin/doc.pl/sid=c3aa989902e936ed28/screen=ckiDisplayDocument?docId=200000047257288

HTH,
Shiju

[MANOJ SRIVASTAVA]

Hi Saul

It looks you ahve a bad block or data coruuption , error no:6 for /usr/include/sys/errno.h is no such device or address , so it looks that it is trying to load data from /dev/vg03/u06 which is either corrupted or missing , do you get any dmesgs for this . Try stopping the database and check for error in that mountpoint .May be an fsck can clear it .


Manoj Srivastava

[S.K. Chan]

At a glance it looks like the disk/disks used by LV u06 in vg03 is having some IO error. The VX_FULLFSCK flag kinnda indicate you need to run fsck on the LV.
You need to do this ..

1) Umount the FS or if it's a raw LV, make sure the DB does not access to it.
2) Run a full fsck check..

# fsck -F vxfs -o full /dev/vg03/ru06

Keep an eye on the output. After it's done, if you do not see any error, mount it back and monitor the syslog file. If still got errors, I would quickly have the disk replaced.

[Hai Nguyen_1]

Saul,

That seems to be a disk drive error.
Use /usr/sbin/xstm in CDE to examine all disks
which this logical volume lies on.

Hai