When connecting new hosts to XtremIO arrays, it is essential to verify the path bandwidth in
addition to HBA driver configuration, file system queue depth, and data alignment. Path bandwidth
refers to the capacity of the data paths between the host and the storage array, which can
significantly impact overall performance.
Path Bandwidth: This is the amount of data that can be transferred between the host and the storage
array within a certain time frame. Ensuring that the path bandwidth is sufficient is crucial for
maintaining high performance and avoiding bottlenecks in data transfer1.
HBA Driver Configuration: The Host Bus Adapter (HBA) drivers must be correctly configured to
support the connection to the XtremIO array. This includes setting the appropriate parameters and
ensuring that the latest drivers are installed1.
File System Queue Depth: This setting determines how many I/O operations can be queued at the file
system level. It should be optimized based on the storage array’s capabilities and the expected
workload1.
Data Alignment: Proper data alignment is necessary to ensure efficient access to the storage array.
Misalignment can lead to performance degradation and increased latency1.
Volume Size (OA): While volume size is an important consideration, it is not typically a host
configuration setting that needs to be verified for connectivity purposes.
SSD Bandwidth (OB): SSD bandwidth is more related to the storage array’s internal performance
rather than a host configuration setting.
Snapshot Size (OC): The size of snapshots is managed within the storage array and does not directly
impact host configuration for connectivity.
