> On both Debian and RH, install the package sysstat and then you can use 
> iostat to see the I/O numbers.

Would you have a link to some good tutorial and/or graphical package
for IOstats that I could use.


Not sure what the following means to me:
Linux 2.6.18-6-amd64 (server3)         08/25/2008

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           1.57    0.04    3.37    3.68    0.00   91.34

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda              29.60       701.41       208.20  717798876  213064200
sdb              29.47       703.71       204.07  720155116  208841672
sdc              29.36       702.65       204.08  719072414  208844520
sdd              29.54       702.77       205.31  719189556  210104704
md0               0.00         0.00         0.00       2314        888
md5              89.19      2375.51       472.50 2431021068  483536880
dm-0             87.31      2368.43       461.36 2423775834  472143160
dm-1              1.85         7.00        11.02    7163338   11282256
dm-2              0.02         0.08         0.11      80192     111464


I guess I would like to know if hdd are writing/reading at enough
speeds? Is there some kind of bottleneck?
How would I know if I need to increase memory (RAM) size?

Thanks,
Lucas

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