Category: Blog for Unix Admin

11

Solaris Troubleshooting : Using Truss to Identify the Signals sending to a Process

One of the Sample Issue: Customer frequently sees in /var/adm/messages syslogd: going down on signal 15 which indicates that the system rebooted from a normal shutdown or init 6, yet no reboot has actually occurred and uptime indicates that no reboot occurred. If you stop the...

18

VxVM 5.0- Replacing rootdisk from rootdg – failing with error "Disk public region is too small"

Error while adding  replaced disk to the root mirror Solaris:/etc/vx/bin> vxdg -g rootdg -k adddisk rootdisk=c1t4d0s2 VxVM vxdg ERROR V-5-1-10127 associating disk-media rootdisk with c1t4d0s2:    Disk public region is too small   Resolution:  Solaris :/etc/vx/bin> vxdisk list DEVICE       TYPE            DISK         GROUP        STATUS c1t4d0s2     auto:sliced     –            –           ...

6

Solaris 10 : mpathadm vs luxadm – manage multipathing in solaris 10

Solaris Multipathing software MPXIO operate now with new arrays using other protocols like SAS or iscsi, . The old Solaris luxadm command still manage FC arrays, but mpathadm command has been developed to work on all the arrays using FC, SAS, and Iscsi connections.

0

Solaris Troubleshooting : Configure “Net Mgmt” or ALOM ( Advanced Lights out manamgement ) Port : For the v210, v240, v440, v250, v215, v245 and v445

The hardware set up is very basic. A standard network cable with RJ45 connectors needs to be plugged into the port on the I/O panel labeled “NET MGT” with the other end connected to the network. Note: This interface is 10HDX so please ensure that the...

1

Solaris : Configure to network service ( e.g. telnet) to listen different port other than default one

If you want to make a TCP application bind to a different port instead of standard port then here is what you do.  This will enable to telnet to a machine only if you know the port number. 1. vi /etc/services file and edit the line for telnet...

7

System admin Best Practices: Procedure to Install a New Server in a Datacenter and installing the Operating system remotely

Below are the steps commonly followed for the most of the enterprise networks where the data center located remotely and support performs build procedures remotely. 1. Procuring Hardware 2.  Allocate DC space and Racking Hardware 3.  Allocating network ports 4.  Configuring remote consoles 5.  Gather System...

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