Slow ISCSI

I finally found a network card for my poweredge 1900 so I tested DSS with this new server

Result=Slow


Server:

Dell Poweredge 1900 Xeon 5130 ( 4 CPU'S )
2GB RAM
146GB SAS 10K RAID0 on PERC5/i
1000Base/T PCI-X 64bit Broadcom 5703
Open-E Demo CD 1.16

This setup bench over 270MB/s on windoze


Client

HP ML350 2.8GHz Xeon
1GB RAM
Built-in 1000BaseT Broadcom
Windows 2000 SP4
Microsoft Initator 2.0.2


They are connected with a crossover cable

ISCSI-Target0 40GB = 57.1MB/s:(

This is equal to performance of any recent SATA drive in regular desktop computer , to slow for server room.My apple XRaid on fiber reach 116MB/s on 6 SATA drive's

I have seen speeds vary from 50MB /s to 80MB /s, with DSS version 1.18 from the Demo-CD you can enable Write Back for your iSCSI LUN. It should improve iSCSI performance.
Also try changing the in console CTRL. + ALT. + W then iSCSI Daemon options to increase MaxRecvDataSegmentLength to 65526 and MaxXmitDataSegmentLength to 65536

Finally some good number


Server :

Dell PowerEdge 1900 5130 (4CPU)
2GB RAM 667MHZ
LSI Logic 7202 Fiber 2GB/s
AppleXRAID Raid5 with 6 drives and one hot spare ( connected to 1 fiber channel 2GB/s)
BroadCom PCI-X 64 bit 5703
Cisco 3750 Switch

Client :

HP Proliant DL380 G4 3.8GHz Xeon ( 4CPU)
2GB RAM
Windows 2003 Server
Built-In Broadcom


The Apple XRaid directly connected to this DL380 via fiber 2GB/s was able to reach 103.5MB/s burst rate and 85MB/s sustained. With Open-E over only one link gigabit the burst rate was 89.5MB/s and 70MB/s sustained , this was bench with HDTach , the real world file copy is little less but same as directly connected fiber XRaid

2097MB file write = 35 secs = 60MB/s ( real file copy )
2097MB file read = same = same

The thing that I miss in Open-E is server clustering , the power I need to reach good performance is simply to much . Open-E could you tell me how much MB/s your Intel SSR212 can push with his 2 Built-In Gigabit Interface over ISCSI ? . I know that this machine's are certified so I'm sure that you have some benchmark of it

Yes Clustering will happen but no set date (revised). Intel is assisting us on some numbers but they have not been released for the SSR212MC2. I will ask around to see if any of our lab engineers have any new updates on this.