Curious
Hi there,
Perhaps I have mis-read your question, but I don't believe Open-E yet supports software RAID10? Unless this has changed in the latest release?
Do you actually mean that your primary server uses hardware RAID10 and you are performing replication to a software RAID1 or RAID0 array you have on your secondary system?
Four SATA disks in RAID0 will easily saturate a single channel of ethernet. I have practicle results showing that 150MB/s write and 125MB/s read are achievable with low cost hardware.
Do beware that bonding only helps when you have multiple clients accessing the SAN at the same time, it doesn't increase the bandwidth for any single "TCP connection", such as that created for volume replication. Therefore your theoretical maximum transfer rate will be that of a single channel of ethernet (~113-125MB/s).
Do also note that regular PCI slots have a maximum throughput of around 133MB/s (32bit * 33MHz / 8bits) Therefore if you hang your NIC's and SATA controller off the same PCI bus you will have to share that bandwidth out amongst all the attached hardware. PCI-X is a much better choice since it's throughput is much higher.
I would connect your primary and secondary server together with a single NIC at both ends and cross-over cable between them. This will help give you a baseline for performance comparisons, then add the complication of Bonding later if your system really needs it.
Also, I wouldn't enable JUMBO frames until you have this problem resolved.
Are you mixing NIC types in your BOND?
Bets regards
TFZ
If it can go wrong, it generally will!