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тАО03-01-2005 06:07 AM
тАО03-01-2005 06:07 AM
iostat on SAN disk
Hi,
we are using HP-UX 11.23ia64 OS for oracle dataase. database stored in EMC SAN storage.
we are using volume manager and powerpath software.
iostat is not returing SAN disk information, I was able see the disk using ioscan command.
tried sar, vmstat, iostat unable to get SAN disk stats.
Is there a way I can get SAN disk io perfomance informaton.
-SR
we are using HP-UX 11.23ia64 OS for oracle dataase. database stored in EMC SAN storage.
we are using volume manager and powerpath software.
iostat is not returing SAN disk information, I was able see the disk using ioscan command.
tried sar, vmstat, iostat unable to get SAN disk stats.
Is there a way I can get SAN disk io perfomance informaton.
-SR
2 REPLIES 2
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тАО03-01-2005 07:00 AM
тАО03-01-2005 07:00 AM
Re: iostat on SAN disk
Hi,
Is the SAN volumes listed with ioscan -fnC disk ?
iostat reports activity on physical volumes. It sounds strange to me that no activity is reported.
I have no experience with EMC disk system and powerpath software but, with EVA disk system and SecurePath, iostat behaviour is normal.
Is the SAN volumes listed with ioscan -fnC disk ?
iostat reports activity on physical volumes. It sounds strange to me that no activity is reported.
I have no experience with EMC disk system and powerpath software but, with EVA disk system and SecurePath, iostat behaviour is normal.
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тАО03-01-2005 07:03 AM
тАО03-01-2005 07:03 AM
Re: iostat on SAN disk
yes, ioscan seeing the device
$ioscan -funC disk | grep c8
/dev/dsk/c8t0d0 /dev/rdsk/c8t0d0
/dev/dsk/c8t0d1 /dev/rdsk/c8t0d1
/dev/dsk/c8t0d2 /dev/rdsk/c8t0d2
/dev/dsk/c8t0d3 /dev/rdsk/c8t0d3
$iostat |grep c8
thanks
$ioscan -funC disk | grep c8
/dev/dsk/c8t0d0 /dev/rdsk/c8t0d0
/dev/dsk/c8t0d1 /dev/rdsk/c8t0d1
/dev/dsk/c8t0d2 /dev/rdsk/c8t0d2
/dev/dsk/c8t0d3 /dev/rdsk/c8t0d3
$iostat |grep c8
thanks
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