Features

Ubuntu 22.04 LTS LPAR mode z/VM guest

The zfcp device driver supports a wide range of SCSI devices, various hardware adapters, specific topologies, and specific features that depend on the IBM® Z hardware.

  • Linux® on IBM Z can use various SAN-attached SCSI device types, including SCSI disks, tapes, CD-ROMs, and DVDs.
  • SAN access through the following hardware adapters:
    • FICON® Express32S (as of IBM z16™)
    • FICON Express16SA (as of z15®)
    • FCP Express32S (LinuxONE only, as of LinuxONE II)
    • FICON Express16S+ (as of z14)
    • FICON Express16S (as of z13®)
    You can order hardware adapters as features for mainframe systems.

    See Fibre Channel Protocol for Linux and z/VM® on IBM System z®, SG24-7266 for more details about using FCP with Linux on IBM Z.

  • The zfcp device driver supports switched fabric and point-to-point topologies. You can use either of these topologies, provided that it is supported by your storage server.
  • The zfcp device driver supports end-to-end data consistency checking.
  • The zfcp device driver supports the data router hardware feature to improve performance by reducing the path length.

To find out whether a combination of device and IBM mainframe is supported for your distribution, see the individual interoperability matrix for each storage device. The interoperability matrices are available at:
www.ibm.com/systems/support/storage/ssic/interoperability.wss

For information about the maximum number of configurable devices, NPIV-enabled subchannels, and other configurations per FCP channel path, see Input/Output Configuration Program User's Guide for ICP IOCP, SB10-7172. Search for FCP Channel Path Limits.

For information about SCSI-3, the Fibre Channel Protocol, and Fibre Channel related information, see www.t10.org and www.t11.org