Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Sampo Blom wrote: > > I have two: > > Intel Q6600 boxes with 4GB of RAM > > 8 x 750Gb (4,5TB RAID5EE, Adaptec 2820SA) > > 2 x 1Gbit Ethernet > > eth0: LAN > > eth1: DRBD SYNC (crosscable between machines) > > /dev/sda2 ~4,5TB for DRBD > > The problem is that, when I connect to an ftp/samba server on LAN > (eth0) and I start uploading a file. Transfer rate is about 20-40MB/s > about 10-15 seconds, then it starts lagging, about 4-10MB/s. > Transfer-rate sleeps 0MB/s 5 seconds for example and all ftp transfers > gets timeout. > > I have monitored eth1 with iptraf, and it doesn’t sync more that > 6-10MB/s while drbd state is (cs:Connected st:Primary/Secondary > ds:UpToDate/UpToDate C r---). > > When drbd does sync while other end has been offline for a while… sync > rate is about 20-25MB/s. > 1. Test You network between the two boxes with fe. netperf 2. Test disc read/write speed with fe. bonnie++ Best Regards Maciej Bogucki