Tagged: troubleshooting

5

VxVM Troubleshooting – Procedure to Replace Internal FibreChannel (FC) Disks controlled by VxVM

Hot swapping of a failed disk is fairly straight procedure if the disks are regular SCSI disks, but for the Fibre Channel (FC) disks we should follow different procedure for hot swaping. Below specific procedure should be used when replacing one of the internal disks in...

3

Solaris Troubleshooting : map the Physical Device(s) from an EMC PowerPath Pseudo Device seen in “format” output

Under normal circumstances, an administrator could use the EMC PowerPath commands to obtain this information (ie. the powermt command). Sometimes this output is not always available, especially since Sun Explorer script does not collect it.

4

Understand Boot Command

Boot arguments may include more than one string. All argument strings are passed to the secondary boot program; they are not interpreted by OpenBoot. If any arguments are specified on the boot command line, then neither the boot-file nor the diag-file nvram variable is used. The...

20

Daddy, I have no friends and you are not playing with me.

My Three years old daughter told me these words!! My kid ( priyakari) started her playschool in Feb/13, She used to be a happy kid and very punctual to her school for the first 6 months. But suddenly, something changed in her schedule and she started...

5

Solaris Troubleshooting : Disk i/o Performance Issues

This post is to highlight some of the steps needed to diagnose if an issue is in fact a disk performance issue or not.  And if it is, what data will be collected to help diagnose the issue. Please note that performance in general is not an...

6

Solaris SVM: Recovery procedures when BOTH sides of the mirror indicate a "Last Erred" state

As a result of unusual failures such as multiple power failures, Solstice DiskSuite /Solaris  Volume Manager both submirrors of a metadevice mirror may be left in an unusual “Last Erred / Last Erred” state making it impossible to determine exactly which submirror must be fixed/replaced first...

3

Solaris Troubleshooting Reference – Forcing a coredump on hung x86 / x64 solaris system

Befor going for troubleshooting please confirm that you really having ” system hang “    Symptoms of System hang: System appears to be hung system is not pingable can not login can not execute commands can not mount shares can not start/stop services system not responding hanging...

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