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

2008-11-25 Thread Pasi Kärkkäinen
On Fri, Nov 21, 2008 at 12:16:05PM -0800, Heady wrote: > > Folks, > > I've been struggling with a similar problem for a while now. My write > speeds are around 110M/s whereas, even following A. Eijkhoudt's advice > I've only been able to get 34M/s reads. > > * The initiator is Open-iSCSI runni

Correct way to change I/O scheduler in a iSCSI dev

2008-11-25 Thread Santi Saez
Hi, What's the correct way to change configuration parameters for an iSCSI device? For example I/O scheduler, max_sectors_kb, etc... I could add commands to the S99local script: echo noop > /sys/block/sdb/queue/scheduler echo 64 > /sys/block/sdb/queue/max_hw_sectors_kb Unfortunately, iSCS

Re: Correct way to change I/O scheduler in a iSCSI dev

2008-11-25 Thread Bart Van Assche
On Tue, Nov 25, 2008 at 3:07 PM, Santi Saez <[EMAIL PROTECTED]> wrote: > What's the correct way to change configuration parameters for an iSCSI > device? For example I/O scheduler, max_sectors_kb, etc... Please have a look at the hierarchy created by udevd in /dev. You can find there soft links

Re: Correct way to change I/O scheduler in a iSCSI dev

2008-11-25 Thread Santi Saez
On Tue, 25 Nov 2008 15:19:24 +0100, "Bart Van Assche" <[EMAIL PROTECTED]> wrote: > Please have a look at the hierarchy created by udevd in /dev. You can > find there soft links that have a name that does not change over > sessions and that point to the devices created by the iSCSI initiator > (/

Re: Open-iscsi version 2.0.870 doesn't reestablish connection after a logout request

2008-11-25 Thread Mike Christie
Simone Morellato wrote: > Hi, > > I saw this different behavior in open-iscsi version 2.0.870 compare with > 2.0.865 > > Open-iscsi version 2.0.870 doesn't reestablish connection after a logout > request from the target. > > Anybody experience this problem? > > Is it the new behavior or is i

Re: Correct way to change I/O scheduler in a iSCSI dev

2008-11-25 Thread Mike Christie
Santi Saez wrote: > > On Tue, 25 Nov 2008 15:19:24 +0100, "Bart Van Assche" > <[EMAIL PROTECTED]> wrote: > >> Please have a look at the hierarchy created by udevd in /dev. You can >> find there soft links that have a name that does not change over >> sessions and that point to the devices create