EonStor DS S12/S16/S24 Series Hardware Manual
storage configuration is supported, e.g., 150GB SAS drives in your RAID
enclosure and 750GB SATA drives in JBODs. However, you should not include
both SAS and SATA drives in a logical drive.
A spare drive should have a minimum capacity that is equivalent to the largest
drive that it is expected to replace. If the capacity of the spare is less than the
capacity of the drive it is expected to replace, the controller will not proceed with
the failed drive rebuild.
When rack-mounted, leave enough slack in the cables so that they do not bend to
a diameter of less than 76mm (3 inches) when.
Route the cables away from places where it can be damaged by other devices,
e.g., foot traffic or fan exhaust.
Do not over-tighten or bend the cables.
3.1.1
Host-Side Topologies
The primary concern for configuring host-side topologies is to avoid points of failure.
It is therefore recommended that the host ports be connected to at least two (2)
HBAs. It is also preferable to apply Fibre Channel switches.
NOTE
In order to manage the fault-tolerant data paths and to optimize data throughput on
multiple data paths, it is necessary to apply Infortrend’s EonPath multi-pathing
software or utilities such as Linux Device Mapper.
3.1.2
Host-Side Parameters
It will be necessary to fine-tune your host-side parameters if you are attaching the
S12/ S16/ S24systems in a complex, multi-host SAN environment. The options can
be found in terminal console with firmware in Main Menu -> View and Edit
Configuration Parameters -> Host-side Parameters. For example, you may need to
enlarge values for the following parameters:
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