Re: iscsi problem for two nics

2009-09-10 Thread Yao Wei
In short: Case A Initiator: IBM x3550 (two NICs), /dev/sda (local disk), 100-120 MB/s (hdparm -t /dev/sda). Target:Dell (only one NIC), /dev/sda (local disk), dev/sda (IET disk),70-90 MB/s(hdparm -t

Re: iscsi problem for two nics

2009-09-10 Thread Paul
has anybody tested this with 10Gb cards? what is the performance gains? I have tested it lightly and found that there are some gains but without a 10Gb switch in the mix testing is very difficult. Paul Yao Wei wrote: In short:

Re: iscsi problem for two nics

2009-09-09 Thread Ulrich Windl
On 8 Sep 2009 at 10:31, mala...@us.ibm.com wrote: Yao Wei [njus...@gmail.com] wrote: The main purpose of my using iscsi is to implement remote disk copying. When I installed iscsi-target on Dell machine and using the whole disk to be the target: Lun 0

Re: iscsi problem for two nics

2009-09-08 Thread Yao Wei
The main purpose of my using iscsi is to implement remote disk copying. When I installed iscsi-target on Dell machine and using the whole disk to be the target: Lun 0 Path=/dev/sda,Type=fileio then on my ibm x3550 machine (with two NICs) , I first configure NIC1 and NIC2 with different MAC

Re: iscsi problem for two nics

2009-09-08 Thread Mike Christie
On 09/07/2009 05:46 AM, Yao Wei wrote: The main purpose of my using iscsi is to implement remote disk copying. When I installed iscsi-target on Dell machine and using the whole disk to be the target: Lun 0 Path=/dev/sda,Type=fileio then on my ibm x3550 machine (with two NICs) , I first

Re: iscsi problem for two nics

2009-09-08 Thread malahal
Yao Wei [njus...@gmail.com] wrote: The main purpose of my using iscsi is to implement remote disk copying. When I installed iscsi-target on Dell machine and using the whole disk to be the target: Lun 0 Path=/dev/sda,Type=fileio then on my ibm x3550 machine (with two NICs) , I first

Re: iscsi problem for two nics

2009-09-04 Thread Mike Christie
On 09/04/2009 07:58 AM, Yao Wei wrote: Dear sir: I have tested iscsi protocols on two machines using open-iscsi and iscsi-target. On IBM X3550 machine which has two NICs (SUSE Linux Enterprise 10.1) I simulate iscsi initiator , and on Dell Optiplex 755 machine (Fedora 8 ) for iscsi target .