Help answer threads with 0 replies.
Go Back > Forums > Linux Forums > Linux - Newbie
User Name
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!


  Search this Thread
Old 01-16-2015, 10:28 AM   #1
LQ Newbie
Registered: Aug 2009
Posts: 1

Rep: Reputation: 0
Linux Native Multipath IO timeout

My Oracle RAC runs on ASM. ASM has an I/O timeout of 15 seconds. How do I find my Linux native multipath I/O timeout? I am running RedHat Linux 6 Enterprise, x86-64.
This is the device section of my multipath.conf

device {
vendor "NETAPP"
product "LUN.*"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
path_selector "round-robin 0"
path_checker tur
features "3 queue_if_no_path pg_init_retries 50"
hardware_handler "0"
prio ontap
failback immediate
rr_weight uniform
rr_min_io 128
rr_min_io_rq 1
flush_on_last_del yes
fast_io_fail_tmo 5
dev_loss_tmo infinity
retain_attached_hw_handler yes
detect_prio yes

Old 01-16-2015, 10:46 AM   #2
Senior Member
Registered: Feb 2011
Location: Massachusetts, USA
Distribution: CentOS 6 (pre-systemd)
Posts: 2,838

Rep: Reputation: 755Reputation: 755Reputation: 755Reputation: 755Reputation: 755Reputation: 755Reputation: 755
I believe that fast_io_fail_tmo and dev_loss_tmo are for fibre channel rports.
The SCSI command timer may be viewed or changed independently for each device.

cat /sys/block/sda/device/timeout


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] RDAC to multipath conversion in SuSe Linux harwansh Linux - Enterprise 4 10-03-2013 03:56 AM
From PP/Basic to Linux Native Multipath nwee Red Hat 0 12-06-2012 02:44 PM
how to configure SuSE Linux native multipath to integrate EMC Storage array rhce5 Linux - Newbie 0 03-20-2012 01:01 AM
[SOLVED] The way to compile kernel with -mtune=native (or -march=native) kaz2100 Debian 3 08-18-2011 04:45 AM > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 09:37 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration