Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hey all. Last week I posted about repeated failures in the integrity checks, and am still having the problem. I have changed my configuration significantly since then in order to fix this, but it didn't change anything and this thing's never finished a full sync. I'd appreciate any further assistance in troubleshooting this. Cabling, identical on both peers: eth0 and eth1, both GigE eth0 for Internet and LAN traffic eth1 is a crossover to the other server, using 192.168 IPs So that's a dedicated GigE link between the peers Filesystem and underlying device: 2.4 TB partition, /dev/sda4 on a 3ware 9650 RAID-5 formatted with ext3 Offloading: # ethtool --show-offload eth1 Offload parameters for eth1: rx-checksumming: off tx-checksumming: off scatter-gather: off tcp segmentation offload: off udp fragmentation offload: off generic segmentation offload: off drbd.conf (selected bits) net { cram-hmac-alg "sha1"; shared-secret "yeahright"; data-integrity-alg "crc32c"; max-buffers 1024; } disk { on-io-error pass_on; } syncer { rate 50M; verify-alg crc32c; } Internal metadata being used on both endpoints Packet filters et al: iptables allows all traffic on eth1, period. after that are additional rules which should pertain only to other interfaces no traffic shaping or monitoring, etc at the ethernet switch General system load: The system is under some significant load at all times. Load average ranges from 3 to 8 depending on the usage. LOTS of free/cache RAM I also have a nearly-identical setup, which successfully syncs and verifies without a hitch. The configuration is identical to above, except as follows: * 1.2 TB partition * 3ware 9550s instead of 9650s * no system load, since it's not yet deployed -- Gregor Mosheh / Greg Allensworth, BS, A+ System Administrator HostGIS cartographic development & hosting services http://www.HostGIS.com/ "Remember that no one cares if you can back up, only if you can restore." - AMANDA