Thanks Lajber. Sorry for taking so long to reply but it's been a busy week. Your test benchmarks look interesting. Do they take into consideration the random seeks that Molle mentioned in his email? As Molle mentioned: "I've seen lots of MD tests, but none that covered profiling MD's random access performance". Does this cover MD's random access performance? Also, have you thought of using iometer (http://www.iometer.org) and comparing it's results with bonnie++'s results? Just a thought... Thanks for your time... --- Lajber Zoltan <lajbi@xxxxxxxxxxxx> wrote: > Hi, > > On Thu, 22 Dec 2005, Rik Herrin wrote: > > > 1) OCE: Online Capacity Expansion: From the > latest > > version of mdadm (v2.2), it ssems that there is > > support for it with the -G option. How well > tested is > > Well, we use LVM above raid, thins is not a big > issue. > > > 3) Performance issues: I'm currently thinking of > > I have some simple test with bonnie++, the sw raid > superior to hw raid, > except big-name storage systems. > http://zeus.gau.hu/~lajbi/diskbenchmarks.txt > > > 4) Would anyone recommend a certain hotswap > > enclosure? > > We used ibm xseries and sun machines. The hotswap > working well, but the > number of drives very limited. > > Take a look at http://www.coraid.com : very well > scalable, cheap storage. > > Bye, > -=Lajbi=---------------------------------------------------------------- > LAJBER Zoltan Szent Istvan Egyetem, > Informatika Hivatal > Most of the time, if you think you are in trouble, > crank that throttle! > __________________________________________ Yahoo! DSL ? Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html