3ware performance tuning

[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

[adamvh]

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.

[Al-S]

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

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

______________
Alaa Souqi