From Unix Server
iostat -d -m
iostat -d /dev/sdc -m -x 2
where
/dev/sdc is
the name of the disk ( refer my earlier
post on how to map ASM device to physical disks)
await is disk
response time
svctm is time
to process i/o request by disk
hostname : tiger
From OEM:
Targets / tiger / performance / under the Disk I/O utilization click
‘Total I/Os per second’ / change view data to last 31 days. See
statistics on the left side of the page.
In OEM:
Targets / +ASM_tiger / Performance / Bottom of the page – Disk
Group I/O Cumulative Statistics
OEM is Targets / Hosts. Click the Total IO/sec header to sort
the list to see what other hosts are similar to tiger. Scroll down to find tiger
. This is the same variable as noted above but for the last 24 hours (instead
of last 31 days).
Hope this help! Rupam
