Hi everyone, I'm fairly new to the whole ATA over Ethernet game, so I hope you'll bear with me. :) I am having to learn heaps of new things, but I think I'm actually getting somewhere now. :)
I have just set up two new vblade disk nodes and I wanted to ask a quick couple of questions that I haven't seen in the archives for this mailing list. The first being, is this the place to ask about vblade? If so, I would like to know if there is a step-by step on getting it going "properly". I've done what I think is right; downloaded, installed, run, but am having huge speed issues so far. I would love to know if it's ME doing something wrong, or just something I've missed. I see in the archives there are questions and statements regarding the partition table being mis-aligned when using AoE/vblade and this causing more reads than needed. I used iostat to monitor at a disk I was writing to over the network (dedicated switch, balance-rr bonding) and saw that there seemed to be about 20+ times more READS than there was WRITES! I believe this is the problem people were talking about, so is there a fix, or some special way to get around this? Currently I can get 1.4Gb/sec over the network (iperf) andat least 110+MB/sec with hdparm on the AoE device. However, if I try to copy anything over to the disk, it can hit a maximum of about 20-27MB/sec. Is this normal? My setup is as follows: * dedicated 3com 1Gb switch (model 3870 - 24 port) * 4x e1000 ethernet ports each node - balance-rr config (bonding) * hardware SATA RAID using an Adaptec 31605. I've tried RAID5 and now am using RAID10 (hardware) - no huge difference * nodes are dual-core [EMAIL PROTECTED] - 2GB RAM * jumbo frames enabled on switch and nodes - aoe-stat confirms payload of 8704 As far as I can tell, this performance is abysmal. I've seen people posting about their 100-200+MB/sec setups... Please can someone tell me what I'm doing wrong? If needed, I can provide more information. I'm running RHEL5.2 x64 on both nodes. I was hoping to set them up identically and use them for shared server storage. Thanks in advance, Phil. **Come to our Silver Anniversary Technology Meeting. Email [EMAIL PROTECTED] for further information.** ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Aoetools-discuss mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/aoetools-discuss
