Hi Christian, On 07.10.2015 09:04, Christian Balzer wrote: > > ... > > My main suspect for the excessive slowness are actually the Toshiba DT > type drives used. > We only found out after deployment that these can go into a zombie mode > (20% of their usual performance for ~8 hours if not permanently until power > cycled) after a week of uptime. > Again, the HW cache is likely masking this for the steady state, but > asking a sick DT drive to seek (for reads) is just asking for trouble. > > ... does this mean, you can reboot your OSD-Nodes one after the other and then your cluster should be fast enough for app. one week to bring the additional node in?
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