03-15-2016
the first error you receive - FCP_ERR4 4B436A3D - according to the sense information provided means, that AIX driver sent RESET command to the SAN device and didn't receive an answer. Usually it means, you have a SAN problem and you should open a case with your SAN switch or better - storage device vendor.
But as far as I see from the output of lsattr -El fscsi0 you don't have SAN. You have a direct-attached storage. If you have a SAN fabric, not a direct-attached storage, then you have a problem connecting to the fabric, mostly a broken cable is the cause.
If you really have a direct-attached storage, then I have some other question:
- how many LDEVs/LUNs do you receive from the storage?
- does the problem happen only with this LDEV (Nr. 00:00:00:00:00:00:00:02) or also with other LDEVs?
- is the storage connected through multiple adapters or is it the only adapter to the storage?
- how many different storages are connected using this adapter?
If it is a single storage directly connected through the single adapter, I would recommend:
- to check the cable
- to switch off dyntrk and fc_err_recov
- to minimize max_xfer_size and corresponding parameters on the hdisk
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LEARN ABOUT CENTOS
cgclear
CGCLEAR(1) libcgroup Manual CGCLEAR(1)
NAME
cgclear - unload the cgroup filesystem
SYNOPSIS
cgclear [-e] [-l <filename>] [-L <directory>] [...]
DESCRIPTION
Without parameters, this command moves all the tasks inside the various cgroups to the root cgroup, deletes all the cgroups and finally
unmounts the cgroup filesystem from the system.
If one or more config files are specified, only groups defined in the config files are removed. The files are processed in reverse order,
i.e. the last file on command line is processed first, so cgclear can have the same command line arguments as appropriate cgconfigparser.
-l, --load=<filename>
specifies the config file to read. This option can be used multiple times and can be mixed with -L option.
-L, --load-directory=<directory>
specifies the directory, which is searched for configuration files. All files in this directory will be processed in alphabetical
order as they were specified by -l option. This option can be used multiple times and can be mixed with -l option.
-e specifies that only empty groups should be removed. If a group defined in a config file has tasks inside or has a subgroup, it won't
be removed. This option works only with -l or -L options.
ENVIRONMENT VARIABLES
CGROUP_LOGLEVEL
controls verbosity of the tool. Allowed values are DEBUG, INFO, WARNING or ERROR.
SEE ALSO
cgconfigparser(1)
Linux 2009-10-23 CGCLEAR(1)