DBA process showing IB block in glance (DBA is very slow)

[shikhar_1]

Hi,

I am getting below errors in glance o/p. dba processes showing IO block due to which dba is very slow.

I have checked all the disks, dmesg. but did not get any issue.

ora_dbw1_APE       23743 oraape       51.8     1   8.4    71.0mb   74.1mb    IO
owcimomd            7559 owcimomd     49.0     4   0.0    1.30gb   1.32gb SLEEP
ora_dbw0_APE       23741 oraape       47.1     1   7.7    66.9mb   69.5mb    IO
xpinfo             19938 root         17.3     1   0.0    28.1mb   35.0mb    IO

Appreciate your response.

[chris huys_4]

Hi,

database processes that block for IO is one thing.

However xpinfo blocking for IO might be more interesting.

Time xpinfo.

#date; xpinfo -i; date

And then time ioscan -fnN.

# date;ioscan -fnN;date

If the time it takes for both commands is equal, and its more then it used to , relatively to the amount of lunpaths , then their could be a fibrechannel driver/sanissue/storage issue.

Log a hp support call to check things out, if the above is the case.

Br,

Chris