Re: Correct qisioctl module version for RHEL 5.2 kernel qla4xxx driver

2008-09-11 Thread Pasi Kärkkäinen
On Wed, Jul 09, 2008 at 08:34:27AM -0400, [EMAIL PROTECTED] wrote: > > Hi Pasi. > > The correct IOCTL module should be included in the latest SANsurfer > package. > Thanks! This seems to be the case.. I'm succesfully using Qlogic iSCSI Sansurfer v5.00.32 on RHEL 5.2, using only the de

Extremely slow read performance, but write speeds are near-perfect!

2008-09-11 Thread A. Eijkhoudt
Hello and thanks in advance for reading, We've been having serious read performance issues with Open-iSCSI. I'll list the specs of our setup first: The SAN: - Dual-Core Xeon with 2GB RAM, running Microsoft Windows Storage Server 2003 R2 - 5TB storage, sliced into two 1.5TB and one 2.0TB partit

Re: Extremely slow read performance, but write speeds are near-perfect!

2008-09-11 Thread Bart Van Assche
On Fri, Sep 12, 2008 at 2:29 AM, A. Eijkhoudt <[EMAIL PROTECTED]> wrote: > - Use different read-ahead settings on the SCSI device 'blockdev -- > setra ...' (4096-65536). This only initially solves the problem: we > get a short burst of good speed, and then it dies again. It kills the > random read