3ware performance tuning

Hi,

I recently downloaded the log-package from my open-e, and i found a performance recommendation in lsi_logs.tar -> Generic_Perf_Tuning_sd?.txt for all my devices. The recommendation states that i have to set the following parameters:

echo 128 > /sys/block/sda/queue/max_sectors_kb
echo 1024 > /sys/block/sda/queue/nr_requests
echo deadline > /sys/block/sda/queue/scheduler
blockdev --setra 16384 /dev/sda

Currently, the following is set:
cat /sys/block/sda/queue/max_sectors_kb
128
cat /sys/block/sda/queue/nr_requests
128
cat /sys/block/sda/queue/scheduler
noop anticipatory [deadline] cfq
blockdev --getra /dev/sda
256

So for me it seems, that the parameters nr_requests and blockdev --setra must be "optimized".

Is this right, and how can I achieve it? I haven't discovered native shell access yet :-) Current build of DSS: 6.0up50.8101.4786 64bit.

Thanks in advance,
Tim

native shell doesn't exist.
You would have to contact tech support and either have them issue the commands for you on they might be able to make a small patch to apply the settings.

Quote:

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Originally Posted by tle

Hi,

I recently downloaded the log-package from my open-e, and i found a performance recommendation in lsi_logs.tar -> Generic_Perf_Tuning_sd?.txt for all my devices. The recommendation states that i have to set the following parameters:

echo 128 > /sys/block/sda/queue/max_sectors_kb
echo 1024 > /sys/block/sda/queue/nr_requests
echo deadline > /sys/block/sda/queue/scheduler
blockdev --setra 16384 /dev/sda

Currently, the following is set:
cat /sys/block/sda/queue/max_sectors_kb
128
cat /sys/block/sda/queue/nr_requests
128
cat /sys/block/sda/queue/scheduler
noop anticipatory [deadline] cfq
blockdev --getra /dev/sda
256

So for me it seems, that the parameters nr_requests and blockdev --setra must be "optimized".

Is this right, and how can I achieve it? I haven't discovered native shell access yet :-) Current build of DSS: 6.0up50.8101.4786 64bit.

Thanks in advance,
Tim

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First we recommend you to update to a newer build rather than up50.build 4786, you can find new builds at: http://www.open-e.com/account/products-and-updates/

For the Shell access, it is not available for end users, but you can open a ticket and send us your request, and we can do it through remote support (RSS), for more details:
http://kb.open-e.com/Remote-Support_137.html

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Alaa Souqi