Hi,
Due to limitations of our Storage we need to set the device queue_depth to 4.
I did this with a script that basically does this: echo 4 >
/sys/block/sdft/device/queue_depth.
But after a few minutes it starts to grow until it reaches 32 again. What could
cause that behavior?
Furthermore the system doesn' t load my qlogic options. I have set them to:
cat /etc/modprobe.d/qlogic.conf
alias scsi_hostadapter1 qla2xxx
options qla2xxx ql2xmaxqdepth=4
But the max queue depth is
cat /sys/module/qla2xxx/parameters/ql2xmaxqdepth
32
Any help would be appreciated.
Centos: CentOS release 6.3 (Final)
Storage: DDN 9900
Qlogic: 2560 (using distri firmware)
Cheers
Axel
On 5/19/2014 12:00 AM, axel.weber at cbc.de wrote:> Centos: CentOS release 6.3 (Final) > Storage: DDN 9900 > Qlogic: 2560 (using distri firmware)have you tried 6.5 with latest yum update patches? If it does the same thing, then its quite likely Red Hat you need to file the report with, as Centos is a work-alike built from Red Hat Enterprise Linux sources. if RHEL 6 behaves differently, than the CentOS folks will want to investigate. -- john r pierce 37N 122W somewhere on the middle of the left coast