Storage

Storage

In this post we will see what is multipathing & DM-Multipathing in Redhat Linux What is Multipath? Multipath allows servers to route I/O over multiple paths to a storage controller. A path refers to the connection from an HBA port to a storage controller port. …

In this post we will how to increase LUN limitation at SCSI layer on RH5 & RH6 There is a parameter of SCSI core module to control the number of multiple LUNs.              For RH5             1)   Check the current settings for scsi_mod.max_luns (SCSI mid layer). This …

In this post we will see how to resize LUN online at OS level in RH Linux and resize under lying Filesystem. 1) Detect new size of LUN at SCSI level After resizing the LUN at storage level, rescan the LUN to make sure that …