[resending, using the address I'm subscribed to this list. All this merging/bankcupting/resurrecting keeps fscking up my posting permissions. sigh. ]
On 2003/03/03 20:03, Sasha Mikheev <[EMAIL PROTECTED]> wrote: > > Recently we have encountered some "intresting" problems while using > RRDtool derivative for large scale data collection. > Just one comment (as I've been doing similar this during the last years): > About 4M disk space per file. ~100GB total disk space. System runs on > Sun V880 with 4Ultra III CPU, 8 GB RAM and 6 disk IBM Fastt2000 RAID5 > controller. > Further investigation revealed that we are spending most time waiting > for disk. rrdtool update is doing lots of small writes. Small writes are the worst things you can do to a RAID5 system, as it needs to redo parity in that case. Have you tried running your setup on a RAID0+1 array? /ol -- < Otmar Lendl ([EMAIL PROTECTED]) | EUnet AG Systems Engineer > -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-developers WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
