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Forum Discussion
Connecting ReadyNAS with crossover cable
Hello,
I have a Hyper-V server and I'm using iSCSI to connect to my ReadyNAS 2100. I want to configure the network so I get as much performance from the ReadyNAS as possible. I don't know a great deal about iSCSI or networking. My initial plan was to team a couple of NICs on my server and team the NICs on the ReadyNAS. I then connected both ports on my ReadyNAS to the corresponding ports on my server using two crossover cables. I set the teaming option on the ReadyNAS to "Round Robin" and set Jumbo packet size to 9000 on server and ReadyNAS ports. I then copied a 27GB file from the ReadyNAS (via iSCSI) to a local drive on my server. The file transfered very quickly with a reported speed of 700mb/s. Since the ReadyNAS has a number of teaming options I decided to try them all to see which one provided the best performance. It looks like "Round Robin" is the best option for me, but when I went back to this option it seemed to stop working. A ping of the ReadyNAS teamed IP address suggests that one of the ports isn't transmitting. After doing some more reading I've read a number of times that teaming should not be used. Could someone recommend the best way to configure my ReadyNAS for optimal speed? If possible I'd like to connect it directly to my server rather than go through a switch. I'm sure my initial solution is flawed in some way but since I'm no expert it's hard to know what to change. Having said that it did appear to work in the way I expected (the first time at least). Thanks in advance for any help
I have a Hyper-V server and I'm using iSCSI to connect to my ReadyNAS 2100. I want to configure the network so I get as much performance from the ReadyNAS as possible. I don't know a great deal about iSCSI or networking. My initial plan was to team a couple of NICs on my server and team the NICs on the ReadyNAS. I then connected both ports on my ReadyNAS to the corresponding ports on my server using two crossover cables. I set the teaming option on the ReadyNAS to "Round Robin" and set Jumbo packet size to 9000 on server and ReadyNAS ports. I then copied a 27GB file from the ReadyNAS (via iSCSI) to a local drive on my server. The file transfered very quickly with a reported speed of 700mb/s. Since the ReadyNAS has a number of teaming options I decided to try them all to see which one provided the best performance. It looks like "Round Robin" is the best option for me, but when I went back to this option it seemed to stop working. A ping of the ReadyNAS teamed IP address suggests that one of the ports isn't transmitting. After doing some more reading I've read a number of times that teaming should not be used. Could someone recommend the best way to configure my ReadyNAS for optimal speed? If possible I'd like to connect it directly to my server rather than go through a switch. I'm sure my initial solution is flawed in some way but since I'm no expert it's hard to know what to change. Having said that it did appear to work in the way I expected (the first time at least). Thanks in advance for any help
2 Replies
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- To be honest I'm not sure if you can use teaming with a directly connected system like that(and in most scenarios it's a redundancy benefit rather than performance, unless multiple clients are involved but in this instance you only have 1).
Although regarding a direct connection itself, you don't need to use crossover cables. - Thanks for your reply. I've read-up on this subject quite a lot since my original post and the way I was trying to use teaming was a bad idea. I'm now using functionality built into the iSCSI initiator on Windows 2008 R2 to achieve the same effect and everything now seems to be working as expected.
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