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Fc_err_recov

Patton In order to succeed, your desire for success should be greater than your fear of failure. -Bill Cosby A man may fall many times, but he won't be a failure Practical Guide for samba configuration practical sendmail configuration Processor Folding providing sudo access for a user as a specific user PTF AIX Recover from Mirrored disk failure recovering a file from Change the reserve for the lun / hdisk from both VIOS partitions. Notify me of new posts via email.

View my complete profile flipcart7 POSTS BY GROUPS Aix Advance Config Aix Advance Scripts Aix Advance Troubleshooting Aix Basics AIX CONCEPTS Aix FAQ Aix MIGRATION Aix nim Aix Performance Monitoring Aix Bookmark the permalink. ← Thin Provisioning BuyersGuide Knowledge sharing inIT → One Response to Don't always default todefault Pingback: Don’t always default to default | Aussie Storage Blog | I Love I/O Virtualization IBM Storage Config If /tmp filesystem excluded If default route disappearing after every reboot what to do image backup of datavg in AIX IN DEPTH OF AIX BOOT PROCEDURE If you believe you won't, you most assuredly won't.

FC drivers won't recover if device change, I/Os takes longer to fail. However once multipath Fibre Channel became common, it made sense to allow more control over this behaviour. The command lspath will show the current paths.

If no device, I/O flush back to adapter and I/O fail; if has device but scsi_id has changed,the FC driver will re-route traffic to new scsi_id.(compare to 4,it will increase I/O The restart of VIOS is required for these changes to take effect. 3. Send to Email Address Your Name Your Email Address Cancel Post was not sent - check your email addresses! This issue is not seen if the path is disabled from the host side.

fc_err_recv=delayed_fail and dyntrk=no Default setting. This is because there is some overlap in dyntrk and fc_err_rec. The dynamic tracking and fast fail features of AIX prevent the long failover time. http://www.ibm.com/support/docview.wss?uid=nas8N1012518 Remove Multibos my configuration file bochsrc.txt named.conf configuration NETAPP AGGREGRATE STATUS NetApp Config Netapp storage disks commands Netbackup Config nfs cross mounting in hacmp nfs mount after restart Nfs mount point

AIX was in existence a long time before Fibre Channel came into common use.   I/O in those days normally travelled down a single path to a single device, or via rmdev -pdev vhost1 (is what I used) You then need to change the reserve for the lun/hdisk from both vios partitions. AIX has two settings that affect how link failures are handled (caused by an HBA failure, switch port failure, cable failure, someone disconnecting the wrong cable, etc). Tips to troubleshoot Total non-rootvg Failure tpconfig TROUBLEshooting disk in aix Troubleshooting disk performance related issue Troubleshooting Fiber channel adapter using script Troubleshooting multipath in RHEL Under Standing Linux Boot Process

TROUBLESHOOTING NETWORK ADAPTER ERROR , UNDERSTANDING NETWORK ERROS IN AIX , AIX NETWORK ERRORS - SOLVED ALL DOCUMENT ARE PROPERTY OF SHIVAKANT , DO NOT COPY IBM , AIX , HACMP get redirected here Resolving the problem This document describes how to set up redundant VIOS support for IBM i partitions. Posted by Ke Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest Reactions: No comments: Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) Blog Archive ► 2016 lspv -size from both VIOS should now show the correct size. 4.

fast_fail and dyntrk are seprate features, however, change one of them might change the other. How to see all the managed system through hmc how to see all wwpn numbers from hmc How to see disks in Netapp storage how to see hmc events How to This blog is totally my own work. Cascading 3.

Letterman. • If you believe you can, you probably can. Aix restore command How to restore inittab file in maintenance mode how to restrict aix user time How to run a script on all aix server from a single server How How to restore a corrupted inittab file in aix How to restore AIX mksysb image from a DVD how to restore hmc How to restore inittab file from mksysb tape in The pair of chdev commands above must be repeated for each fscsiX device.

fc_err_recv=fast_fail and dyntrk=no If link loss between storage and switch, ater 15 seconds delay, FC drives will query the device again. Recovery steps if you don't set the no_reserve prior to mapping the disk. Script to remove disk from PowerHA Script to remove file system in cluster Script to shut down all the lpars script to view lv and vg info SEA CONFIGURATION SEA 802.1Q

Active Memory Mirroring Adding a application resource to monitor with src adding a application to resource controller ADDING A DISK IN SHARED VOLUME IN HACMP Adding a Host in svc V7000

A classic example I keep seeing is AIX Fibre Channel HBA settings, in particular for error recovery and dynamic tracking. To configure the AIX fast fail feature for use with VxVM and DMP Enter the following commands for each Fibre Channel adapter or controller: # chdev -l fscsiN -a fc_err_recov=fast_fail -P Monitoring File system utilization by script mounting a nfs file system Mounting iso image in aix Mounting iso image in Aix 7.1 moving from windows to fedora Multibos . In single-path configurations, especially configurations with a single path to a paging device or tape drive, the delayed_fail default setting is recommended.

HACMP QUICK REFERENCE AND INTERVIEW PREPERATION , POWERHA QUICK REFERENCE AND INTERVIEW PREPERATION HACMP BASICS HACMP CAN BE CONFIGURED IN 3 WAYS. 1. After 15 seconds the path is failed and that I/O is resent down a different path.   With delayed fail, this pause can be as long as 40 seconds. AIX LPAR ,DLPAR AND VIO AIX GENERAL DOCUMENTS HACMP ADMINISTRATION AND CONFIGURATIONS AIX TROUBLESHOOTING UNIX / BACKUP /SAN ADMINISTRATION I JUST WANT THAT VIEWER OF THIS BLOG CAN PERFORM COMPLEX TASK After all fscsiX attributes have been set, restart VIOS.

CREATING TWO NODE HACMP CLUSTER STEP BY STEP ,CREATING TWO NODE POWERHA CLUSTER STEP BY STEP PLANNING IP FOR A ALIASING (IP TAKE OVER BY ALIASING) To create two node hacmp What should you look for?   This is the default (normally less ideal) situation:   # lsattr -E -l fscsi0 attach switch How this adapter is CONNECTED False dyntrk no Dynamic Yesterday is dead, tomorrow hasn't arrived yet. TAKING BACKUP OF DATA VG USING SAVEVG COMMAND , HOW TO BACKUP A DATAVG IN AIX ALL DOCUMENT ARE PROPERTY OF SHIVAKANT , DO NOT COPY IBM , AIX , HACMP

fc_err_recv=fast_fail and dyntrk=yes If link loss between storage and switch, ater 15 seconds delay, FC drives will query the device again. Related About Anthony Vandewerdt I am an IT Professional who lives and works in Melbourne Australia. Skip to content HomeAbout me ← Thin Provisioning BuyersGuide Knowledge sharing inIT → Don't always default todefault Posted on May 30, 2014 by Anthony Vandewerdt I once sat in a project While you may think there is some logic in the statement, it is a flawed belief.

Set the fast fail and dynamic tracking attributes on these devices: chdev –dev fscsiX –attr fc_err_recov=fast_fail –perm chdev –dev fscsiX –attr dyntrk=yes –perm 2. Feedjit Feedjit Live Blog Stats Labels /etc/iscsi/targets /usr/es/sbin/cluster/cl_crfs /usr/es/sbin/cluster/cl_rmfs 0453-054 Unable to get physical volume name for from ODM 0516-1734 mklvcopy: Warning 0516-934 /usr/sbin/syncvg: Unable to synchronize logical volume A new View all posts by Anthony Vandewerdt → This entry was posted in advice and tagged AIX, IBM AIX. How does VLAN works in VIO Server How liux boots How t aix How to create user in aix on all the servers in the network How to INSTALL PACKAGES FROM

chdev -l fscsi0 -a dyntrk=yes -P (default is no) Requirement: device PWWN and NWWN must remain constant. device will only track from the same HBA. Powered by Blogger. The readme for AIX 5.2 (which applies equally to higher versions) explains all of this behaviour here: http://www-1.ibm.com/support/docview.wss?uid=isg1520readmefb4520desr_lpp_bos Share this:TwitterFacebookGoogleLinkedInPrintEmailRedditPinterestTumblrLike this:Like Loading...

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