New device recognition for Windows

Virtual Storage Platform Family Host Attachment Guide

Version
A3-02-2x
Audience
anonymous
Part Number
MK-90RD7037-32

Device recognition

  • Do not create partitions on the FX devices. If the FX devices will be used in the MSCS environment, you must write a signature on each FX device. If not, do not write a signature.
  • Online LU expansion: data migration is not needed for OPEN V (required for other LU types). A host reboot is not required for Windows. For more information, contact your Hitachi Vantara representative.

When the adapter connected to the storage system shows the new devices (see the example below), pause the screen and record the disk number for each new device on your SCSI Device worksheet (see the example for worksheet below). You will need this information when you write signatures on the devices (see About writing the signatures for Windows).

Disk number assignments

The Windows system assigns the disk numbers sequentially starting with the local disks and then by adapter, and by TID/LUN. If the storage system is attached to the first adapter (displayed first during system start up), the disk numbers for the new devices will start at 1 (the local disk is 0). If the storage system is not attached to the first adapter, the disk numbers for the new devices will start at the next available disk number. For example, if 40 disks are attached to the first adapter (disks 1–40) and the storage system is attached to the second adapter, the disk numbers for the storage system will start at 41.

Note: When disk devices are added to or removed from the Windows system, the disk numbers are reassigned automatically. For the FX devices, be sure to update your FX volume definition file (datasetmount.dat) with the new disk numbers.
LDEV (CU:LDEV) LU Type VLL (MB) Device Number Bus Number Path 1 Alternate Paths
0:00

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:01

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:02

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:03

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:04

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:05

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:06

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:07

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:08

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:09

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:0a

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:0b

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:0c

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:0d

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:0e

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:0f

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

0:10

TID:____

LUN:____

TID:____

LUN:____

TID:____

LUN:____

and so on…