Redundant and non-redundant configurations, Direct-attached configurations – Dell PowerVault MD3260i User Manual
Page 10

Redundant And Non-Redundant Configurations
Non-redundant configurations are configurations that provide only a single data path from a host to the storage array.
This type of configuration is only recommended for non-critical data storage. Path failure from a failed or removed cable,
a failed HBA, or a failed or removed RAID controller module results in loss of host access to storage on the storage
array.
Redundancy is established by installing separate data paths between the host and the storage array, in which each path
is to one of the two RAID controller modules installed in the storage array. Redundancy protects the host from losing
access to data in the event of path failure, because both RAID controller modules can access all the disks in the storage
array.
Direct-Attached Configurations
You can connect the Ethernet ports of the host servers directly to the storage array RAID controller module iSCSI ports.
The following figure shows eight stand-alone hosts with a single data path.
10
- PowerEdge RAID Controller H700 (56 pages)
- PowerEdge RAID Controller H700 (200 pages)
- PowerEdge RAID Controller H700 (178 pages)
- PowerVault TL2000 (1 page)
- PowerVault 110T DLT VS80 (Tape Drive) (49 pages)
- PowerVault TL2000 (22 pages)
- PowerVault TL4000 (306 pages)
- PowerVault TL2000 (2 pages)
- PowerVault TL4000 (2 pages)
- PowerVault TL2000 (176 pages)
- PowerVault TL2000 (16 pages)
- PowerVault TL2000 (3 pages)
- PowerVault TL2000 (116 pages)
- PowerVault 130T DLT (Tape Library) (49 pages)
- PowerEdge 800 (24 pages)
- PowerEdge 800 (82 pages)
- PowerEdge 800 (2 pages)
- PowerEdge 800 (27 pages)
- PowerEdge 800 (28 pages)
- PowerEdge 800 (58 pages)
- PowerEdge 800 (87 pages)
- PowerEdge 6400 (86 pages)
- PowerVault 124T (66 pages)
- PowerVault 124T (57 pages)
- PowerVault 110T LTO (Tape Drive) (28 pages)
- PowerVault 124T (55 pages)
- PowerVault 124T (73 pages)
- PowerVault 124T (65 pages)
- PowerVault 124T (4 pages)
- PowerVault 124T (79 pages)
- PowerVault 124T (2 pages)
- PowerVault 124T (64 pages)
- PowerVault 124T (56 pages)
- PowerVault TL4000 (116 pages)
- PowerVault TL4000 (1 page)
- PowerVault TL4000 (66 pages)
- PowerVault TL4000 (22 pages)
- PowerVault TL4000 (3 pages)
- PowerVault TL4000 (176 pages)
- PowerVault TL4000 (2 pages)
- PowerVault TL4000 (16 pages)
- PowerEdge RAID Controller 6i (120 pages)
- PowerEdge RAID Controller 6i (156 pages)
- PowerVault 715N (Rackmount NAS Appliance) (10 pages)
- PowerVault 715N (Rackmount NAS Appliance) (86 pages)