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Rob Beard wrote: > > You could try hdparm -t /dev/sdX (where X is the letter of the device > name). That'll give you read performance details. hdparm is great for basic checks and tuning. And will do a little more than just read performance with tweaking. Where you want a little bit more, for a little more effort, bonnie++ will report on different types of I/O. Of course this assumed you have a file system etc. Where performance matters I run bonnie++ after installation, and after all relevant I/O subsystem changes (new disks, new kernels), and put the notes in my server documentation. It can be very revealing! Extra swap space? I use any spare(?) disk space for back up copies of stuff. Swap space for me is a little bit of space so the kernel can page out idle pages, to expand the disk cache a little. On most systems a few 100MB is more than enough swap space even with modern bloatware. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html