What is multipathing in Solaris?
Oracle Solaris Storage Multipathing MPxIO provides multipath access to storage luns by grouping together the physical paths and presenting a single logical path. MPxIO can also be referred as STMS or SCSI_VHCI due to the commands used and logical device paths created.
What is the use of multipathing?
Multipathing allows the combination of multiple physical connections between a server and a storage array into one virtual device. This can be done to provide a more resilient connection to your storage (a path going down will not hamper connectivity), or to aggregate storage bandwidth for improved performance.
What is multipath and how do you configure it?
Device Mapper Multipathing. Device mapper multipathing (DM Multipath) allows you to configure multiple I/O paths between server nodes and storage arrays into a single device. These I/O paths are physical SAN connections that can include separate cables, switches, and controllers.
What is wwn storage?
A World Wide Name (WWN) or World Wide Identifier (WWID) is a unique identifier used in storage technologies including Fibre Channel, Parallel ATA, Serial ATA, NVM Express, SCSI and Serial Attached SCSI (SAS).
Where is HBA model in Solaris 10?
Step 1 Run the fcinfo hba-port command to the HBA WWN in Solaris 10. Manufacturer: QLogic Corp. Manufacturer: QLogic Corp. Step 2 Run the prtpicl -v -c scsi-fcp |grep -i wwn command to view the HBA WWN in Solaris 8 and 9.
How do I remove a disk from Solaris?
You must select the disk and stop any activity or applications on it, unmount it, physically remove the drive, and configure the Solaris environment to recognize that the drive is no longer there. You must then configure your application to operate without this device in place.
What is Oracle Solaris MPxIO?
Oracle Solaris Storage Multipathing MPxIO provides multipath access to storage luns by grouping together the physical paths and presenting a single logical path. MPxIO can also be referred as STMS or SCSI_VHCI due to the commands used and logical device paths created.
What is the difference between luxadm and mpathadm in Solaris?
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. mpathadm is included since s10u3 for SPARC and x86 platform with SUNWmpathadm SUNWmpathadmr packages.
How do I administer multipathing devices?
Perform the following tasks to administer any multipathing devices. Multipathing support and property information is identified with the Multipath Management API plug-in library name. Become an administrator. Identify the multipathing support on your system.
How to set load balancing and auto-failback policy in Solaris?
The load balancing policy can be set in the configuration file /kernel/drv/scsi_vhci.conf for solaris 10 and earlier or in the /etc/driver/drv/scsi_vhci.conf file for solaris 11. Auto-failback policy enables the re-enable the failed path after it has recovered from the failure.