Regarding /proc/diskstats when EMC PP is configured.

Hi.  Would you please tell me what version of PP you are running?

Thanks, Brion

Hi,

linux-46:~ # cat /etc/issue

Welcome to SUSE Linux Enterprise Server 10 SP1 (x86_64) - Kernel \r (\l).

linux-46:/software # uname -a

Linux linux-46 2.6.16.46-0.12-smp #1 SMP Thu May 17 14:00:09 UTC 2007 x86_64 x86_64 x86_64 GNU/Linux

linux-46:/software # rpm -qa | grep -i emc

EMCpower.LINUX-5.0.1-022

Thanks,

Ulag

Hi.  This issue was fixed in PowerPath 5.1 for Linux.  We recommend upgrading to the latest (5.3 SP1) if your configuration is supported under the guidelines specified in the EMC Support Matrix.

Thanks, Brion

Hi Biron,

We upgraded PowerPath 5.3 SP1 on one of our linux Server. But observing the same issue. Only the pseudo paths are updated in /proc/diskstats when I/O was happening, not the actual /dev/sd(x) device paths.

# powermt version

EMC powermt for PowerPath (c) Version 5.3 SP 1 (build 111)

# uname -a

Linux sd-dvt-lnx43 2.6.18-128.el5PAE #1 SMP Wed Dec 17 12:02:33 EST 2008 i686 i686 i386 GNU/Linux

# cat /etc/issue

Red Hat Enterprise Linux Server release 5.3 (Tikanga)

Kernel \r on an \m

#

The server is connected to EMC Clariion Array.

Thanks,

Ulag.

Hi.  I am looking into this.  I'll get back to you as soon as I can.

-Brion

Hi.  We have also seen this issue in a more current build.  We are investigating this now.  I can't specify a date for a fix at this time.  Let's continue to communicate in this forum about updates.  Thanks!

-Brion