Supported Cable Configurations; External Tape Drive Support For Dell Hba355E Adapter; Internal Tape Drive Support For Dell Hba355I Adapter And Dell Hba350I Adapter - Dell HBA 355 Series User Manual

● MD14XX, MD24XX, ME484, and tape drives on the same HBA card is unsupported.
● No loop back connections of enclosures are supported. For example, if there are two enclosures connected in daisy/
multipath configuration, then connecting a port of second enclosure again back to one of the port on the first enclosure is
not supported.
● Mixing of single path and dual path configurations on the same controller is not supported. For example, if Port 0 and Port 1
are connected to Enclosure 0, then you cannot connect Port 2 to Enclosure 1.
● Interleaving of port for dual path configuration is not supported. For example, if port 0 is used to connect the 1st EMM, then
only port 1 should be used to connect multipath to other EMM for the same enclosure.
● Using Port 1 and Port 2 for dual path on the same enclosure is not supported.
● Any combinations conforming to the above rules will be supported.

Supported Cable Configurations

● Connect to the JBOD EMM by using SAS4 cables only.
● Redundant cable configurations only:
○ Both EMMs must be cabled to the PERC or HBA in a server to properly manage the JBOD.
○ All elements cannot be monitored in single cable configuration. For example, fans, temperature, and probes.
○ Firmware of both EMMs cannot be upgraded in a single cable configuration. Peer update functionality is unavailable in
JBOD.
○ DUP supports only dual cable configurations.
● Symmetrical cable configurations only:
○ Chain configurations do not support asymmetrical cabling. All cables will run top to bottom or bottom to top in a stack.
● Mixing of enclosures in chain configuration is not supported:
○ You must connect enclosures of same model only. For example, an MD2412 can be daisy-chained only to an MD2412
enclosure.

External tape drive support for Dell HBA355e Adapter

Dell HBA355e Adapter supports external tape drives.
External tape drive topology rules for Dell HBA355e Adapter are:
● A maximum of four tape drives are supported if external LT06/7/8/9 are connected.
● Each port supports a maximum of one tape drive.
● Multipath configurations are not supported.
● Mixing of tape drives with ME (ME484) or MD (MD1420 or MD1400) enclosures on the same controller is not supported.
● Mixing of tape drives with ME484, MD14XX, and MD24XX on the same controller card is not supported.
Internal tape drive support for Dell HBA355i Adapter
and Dell HBA350i Adapter
HBA355i Adapter and HBA350i Adapter support one tape drive (LT06/7/8/9).
Dell HBA355i Adapter, Dell HBA355i Front, Dell HBA355e Adapter, Dell HBA350i MX, Dell HBA350i Adapter, and Dell 15
HBA350i MM