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Announcing DAT40 Tape drive Support on MPE/iX

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Beginning with Release 7.0 Express 1, MPE/iX supports the standalone DAT40 tape drive.

Software Requirements

Customers wishing to use this new DAT device must be running on MPE/iX 7.0 Express 1 or later version of MPE/iX. This DAT drive is fully tested and certified with a patch (MPELXL1) in MPE/iX 7.0 Express 1.

This device is not supported on MPE/iX releases 6.0 and 6.5. There are no plans to support the DAT40 on these two releases in the future.

Hardware Requirements

The DAT40 works with all the MPE/iX 7.0 supported hardware platforms. For performance reasons, we do NOT recommend the sharing SCSI bus with the DAT40 drive and the system's internal disks. Unpredictable and unacceptable performance may be seen when disks and the DAT40 are accessed simultaneously (as during STORE/RESTORE).

Product Overview

The DAT40 drive provides 20 GB of storage in native mode. This can be expanded to 40 GB using hardware data compression with a DDS-4 data cartridge. The actual amount of data stored in compression mode is dependent on the type of data being stored.

The drive recognizes DDS-4 (40 GB), DDS-3 (24 GB) and DDS-2 (8 GB) media cartridges, and drive is not compatible with 60m DDS-1 tapes (with 90m DDS-1 tapes it is read compatible only). The DAT40 provides LVD/SE Wide Ultra SCSI-2 interface for connectivity.

The performance of the drive in terms of time taken to store/retrieve files from the DAT40 drive may vary depending on various factors including HPe3000 system configuration, system load, tools and software packages used to store/retrieve data/files.

Configuration

Here is an example of what the configuration should look like on the HP3000 for the DAT40 tape drive:Sample SYSGEN configuration output on a HPe3000 9x9 server: 
 
 io> ld 8
  LDEV:     8  DEVNAME:                    OUTDEV:        0   MODE:
    ID: HPC5683A                           RSIZE:       128   DEVTYPE: TAPE
  PATH: 10/4/20.2.0                        MPETYPE:      24   MPESUBTYPE:  7
 CLASS: TAPE
 
 io> lp 10/4/20.2.0
  PATH:  10/4/20.2.0                            LDEV:    8
    ID:  HPC5683A                               TYPE: TAPE
  PMGR:  SCSI_TAPE_DM                        PMGRPRI:    10
  LMGR:  LOGICAL_DEVICE_MANAGER               MAXIOS:     0

 io> lp 10/4/20.2
  PATH:  10/4/20.2                              LDEV:
    ID:  PSEUDO                                 TYPE: DA
  PMGR:  TRANSPARENT_MGR                     PMGRPRI:     6
  LMGR:                                       MAXIOS:     0

 io> lp 10/4/20
  PATH:  10/4/20                                LDEV:
    ID:  A2372-60003-SCSI                       TYPE: DA
  PMGR:  SCSI_DAM                            PMGRPRI:     6
  LMGR:                                       MAXIOS:     0
Sample ISL>MAPPER output on a HPe3000 N-Class server 

 Path       Component Name                      ID    Model Model Hdwr  Firm
 ---------- ----------------------------------- ----- ----- ----- ----- -----
 0          IKE I/O Bus Converter               7H    803H  CH    0     0
 0/0        Elroy PCI Bridge                    DH    782H  AH    0     0
 0/0/0/0    Ethernet Controller                 1011H 0019H 103CH 104FH 41H
 0/0/1/0    Symbios SCSI Controller             1000H 000CH 0000H 0000H 01H
 0/0/1/0.6.0  HPC5683A DDS4 Tape Drive          -     -     -     -     C908
Sample SYSGEN configuration output on a HPe3000 N-class server: 

 io> lp 0
  PATH:  0                                      LDEV:
    ID:  PAT_IOA_BC                             TYPE: BC
  PMGR:  PCI_IKE_MGR                         PMGRPRI:     2
  LMGR:                                       MAXIOS:     0

 io> lp 0/0
  PATH:  0/0                                    LDEV:
    ID:  PAT_PCI_BC                             TYPE: BC
  PMGR:  PCI_ELROY_MGR                       PMGRPRI:     2
  LMGR:                                       MAXIOS:     0

 io> lp 0/0/1
  PATH:  0/0/1                                  LDEV:
    ID:  PCI_DEVICE                             TYPE: BC
  PMGR:  PCI_DEVICE_MGR                      PMGRPRI:     2
  LMGR:                                       MAXIOS:     0

 io> lp 0/0/1/0
  PATH:  0/0/1/0                                LDEV:
    ID:  A5150A                                 TYPE: DA
  PMGR:  PCI_SCSI_DAM                        PMGRPRI:     6
  LMGR:                                       MAXIOS:     0

 io> lp 0/0/1/0.6
  PATH:  0/0/1/0.6                              LDEV:
    ID:  PSEUDO                                 TYPE: DA
  PMGR:  TRANSPARENT_MGR                     PMGRPRI:     6
  LMGR:                                       MAXIOS:     0

 io> lp 0/0/1/0.6.0
  PATH:  0/0/1/0.6.0                            LDEV:    7
    ID:  HPC5683A                               TYPE: TAPE
  PMGR:  SCSI_TAPE_DM                        PMGRPRI:    10
  LMGR:  LOGICAL_DEVICE_MANAGER               MAXIOS:     0

 io> ld 7
  LDEV:     7  DEVNAME:                    OUTDEV:        0   MODE:
    ID: HPC5683A                           RSIZE:       128   DEVTYPE: TAPE
  PATH: 0/0/1/0.6.0                        MPETYPE:      24   MPESUBTYPE:  7
 CLASS: TAPE



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