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DL380 G4 - Slow SCSI?? Help please!

Ender-1
Occasional Advisor

DL380 G4 - Slow SCSI?? Help please!

We are using a new HP DL380 G4 for our primary backup/media server with the following config:

2 x 3.6Ghz Xeon, 4 GB RAM, 2 x 146 GB 15k SCSI, LSI Logic 1030T Ultra320 HBA, Integrated SmartArray 6i, Windows Server 2003 Std

So this thing should scream. We are using it with a Quantum Superloader3 Ultrium 3 drive and it's talking at 160 MB/sec speed.

However backups are taking longer than they did with our old PIII-600Mhz server and Ultrium 1 drive!

I used the HPReadData tool to assess performance, and got the following:

Scanning C:\...
C:\: 3054.83 MB read (21890 files) in 135 seconds, 22.63 MB/sec
TOTAL: 3054.83 MB read (21890 files) in 135 seconds, 22.63 MB/sec
Completed

Scanning D:\...
D:\: 12622.07 MB read (6758 files) in 279 seconds, 45.24 MB/sec
TOTAL: 12622.07 MB read (6758 files) in 279 seconds, 45.24 MB/sec
Completed


For comparison sakes, I have a 3 yr old laptop with 5400rpm IDE drive that pulls ~13 MB/sec and we have a DL360 G4 server which pulls ~75 MB/sec with the same setup.

I am turning off antivirus, I migrated stripe size to 256K, defrag'd drives, etc.

I'm not sure what else to do. HP support can't seem to tell me what kind of performance I *should* see out of this unit. So far they had me replace the SCSI backplane (which resulted in no improvement) and then they are suggesting the system board might be the cause but it's obvious they are grasping at straws.

Any help here? Are these numbers really what this server can put out?
2 REPLIES
Garrett Taylor
Occasional Visitor

Re: DL380 G4 - Slow SCSI?? Help please!

Have you tried pulling the extra SCSI controller or any other non-HP hardware?

Try booting with a Linux LiveCD as well and see if you still have performance issues. That will rule out your OS or any installed software.
Gus Kwong
Respected Contributor

Re: DL380 G4 - Slow SCSI?? Help please!

Assuming you have done the usual things like installed the Proliant Support Pack and patched firmware --- have you tried the performance test with just the one disk?
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