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Showing posts from February, 2017

Bonding ( Port Trunking)

http://www.linuxhorizon.ro/bonding.html What is bonding? Bonding is the same as port trunking. In the following I will use the word bonding because practically we will bond interfaces as one. But still...what is bonding? Bonding allows you to aggregate multiple ports into a single group, effectively combining the bandwidth into a single connection. Bonding also allows you to create multi-gigabit pipes to transport traffic through the highest traffic areas of your network. For example, you can aggregate three megabits ports (1 mb each) into a three-megabits trunk port. That is equivalent with having one interface with three megabits speed. Where should I use bonding? You can use it wherever you need redundant links, fault tolerance or load balancing networks. It is the best way to have a high availability network segment. A very useful way to use bonding is to use it in connection with 802.1q VLAN support (your network equipment must have 802.1q protocol implemented).

How to get the SAN environment information and statistics on AIX, HP-UX, Linux, Solaris, and Windows

How to get the SAN environment information and statistics on AIX, HP-UX, Linux, Solaris, and Windows Description NetBackup SAN Client is supported on the Linux , Solaris, Windows, HP-UX and AIX operating systems.  These environments provide the initiator device driver which can login to the SAN client media server and mount an pseudo   target device “ARCHIVE PYTHON” so that the backup or restore can be use the fiber transport (FT).  If there is an issue in the SAN environment, it is necessary to get the information/statistics from the SAN fabric for analysis.  The commands below can be used, on the respective operating system, to gather the necessary information. If the outputs show many or steadily increasing error counts, that indicates one or more issues with  the fabric  infrastructure. The issue(s) can be caused by cabling, SFP, san switch, DWDM, HBA or ISL and those components will need to be analyzed and evaluated.  Linux Get the hardware information fo