Congestion When over-subscription occurs, it leads to a condition called congestion. When a node is unable to use as much bandwidth as it wants, because of contention with another node, then there is congestion. A...
What is Hop in SAN fabric When Fibre Channel traffic is going from one E_Port over an ISL to another E_Port, is one hop. ISLs are made by connecting an E_Port to an E_Port....
What are the well known addresses in Fibre Channel? A well-known address is a reserved address for each Fibre channel service. Each address provides it’s respective service. Well known addresses and its services are...
Hitachi / Hitachi USP / Hitachi VSP / SAN
HBA parameters for connecting to Hitachi VSP The minimum requirements for configuring the adapters for operation with the Hitachi RAID storage system are I/O timeout value (TOV) The disk I/O timeout value (TOV) is...
Hitachi / Hitachi VSP / SAN
Expand LDEV capacity in Hitachi VSP In the Storage Navigator main window, in the Storage Systems tree, select Pool. The pool name appears below Pool. Select the pool associated with the DP-VOL that has...
Hitachi / Hitachi VSP / SAN
Hitachi VSP family matrix VSP series is Hitachi’s latest version of SAN storage arrays Hitachi VSP series has 5 models G200 G400 G600 G800 G1000Let us discuss the specifications of each model G200: It...
Hitachi / Hitachi VSP / SAN
Hitachi Virtual Storage Platform (VSP) The Hitachi Virtual Storage Platform(VSP ) is a high-capacity, high-performance, large-scale, enterprise-class SAN storage system. The main advantage of the Hitachi Virtual storage platform (VSP) is its 3D scaling...
How to create a Dynamic provisioning(DP) pool in Hitachi VSP using storage navigator In storage systems tree on the left pane, select Pool. The Pool window appears. Click on Create Pools. The Create Pools...
Zero page reclamation in Hitachi VSP We can reclaim zero pages in a DP-VOL to free pool capacity. If a page assigned to a DP-VOL contains only zero binary data, we can reclaim the...
RAID / SAN / SAN fundamentals
What is Raid RAID stands for Redundant Array of Independent Disks or Redundant Array of Independent Disks. RAID is a storage virtualization technology that combines multiple small physical disks into a single large logical...
allocation Brocade Cisco cli commands datadomain Dell EMC emc fibre Fibre Channel health check Hitachi Hitachi Dynamic Provisioning (HDP) Hitachi USP Hitachi VSP host modes HP HP 3PAR layers LED light maintenance MDS netapp optic our of service powerpath Pure queue depth RAID replacement RTOS SAN SAN switch Software RAID ssid symmetrix tdev Topologies troubleshooting Virtual Storage Platform vmax well known addresses Zero page reclamation Zoning
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