On Tue, Jan 08, 2008 at 07:37:14PM -0500, Miguel Gonzalez Castaños wrote: > > Erez Zilber escribió: > > Hi, > > > > I'm running some performance tests with open-iscsi (iops & throughput). > > With open-iscsi over TCP, I see very low numbers: > > > > * iops: READ - 20000, WRITE - 13000 > > * throughput: READ - 185, WRITE - 185 > > > > In open-iscsi.org, I see much higher numbers. Did anyone measure > > open-iscsi performance lately? Can you share your numbers? Which > > iscsid.conf file did you use? > > > > Thanks, > > Erez > > > > > I'm having a HP AiO 600 Storage Server with SATA drives in RAID 5. > > I have tried using open-iscsi and samba mounts and I'm getting around 10 > MB/s of performance. I've asked in the HP forums: > > http://forums12.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1199836532175+28353475&threadId=1155370 > > And they say that this is the normal performance of iSCSI with SATA > drives, is that true? >
10 MB/sec sounds really poor. What kind of disk performance do you get locally on the target/server from the SATA RAID array? You can try iometer or some other disk benchmarking tools. What kind of latency (ping roundtrip with 4k packets) do you have from the initiator to the target? latency is one of the key factors limiting IOPS you will get. How's your network between the target and initiator? gigabit? jumbo frames? flow control? what kind of switch are you using? How's the performance with FTP/HTTP/CIFS between the target and the initiator? -- Pasi --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
