RE: "all green lights" from SAs
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: <ganstadba@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 22 Mar 2007 11:47:10 -0700
One more thing to add on this - the last time it happened to me, they
reported all disks looked fine from their monitoring/management software
and we went back and forth about it for 3.5 hours. It wasn't until I
asked them to quadruple check that someone actually walked back into the
datacenter and looked at the array that they saw one of the disks had
its amber light on. So if you suspect a bad disk, don't rely on the
monitoring software - walk back and look at the actual disk array.
-----Original Message-----
From: Allen, Brandon
Sent: Thursday, March 22, 2007 11:36 AM
To: 'ganstadba@xxxxxxxxxxx'; oracle-l@xxxxxxxxxxxxx
Subject: "all green lights" from SAs
When my SAs give me something like that, I give the output from "sar
-d", and historical stats from perfview or HP OpenView Performance
Manager showing that I usually get service times of 2ms and I'm
currently getting service times of 100ms and then they eventually figure
out that the disk array is running slow because the cache has been
disabled, or it was enabled for a LUN that it is supposed to be disabled
for, or there is a bad disk being rebuilt in the RAID 5 array.
Regards,
Brandon
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Michael McMullen
I guess I'm just bitter from always getting pages of meaningless
printouts showing "all green lights" from SA's when I complain about
slow disks.
--
//www.freelists.org/webpage/oracle-l
Other related posts:
