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Full Discussion: How to put vscsi in available state?
Operating Systems AIX How to put vscsi in available state? Post 302950734 by bakunin on Tuesday 28th of July 2015 10:09:29 AM
Old 07-28-2015
You seem to lack a solid understanding how all the virtualisation works:

First you create a virtual SCSI adapter on the VIOS and allow a certain LPAR to use it. For the LPAR it is used like any physical SCSI adapter, save for the fact that it is just a software construct in the VIOS. You do this on the HMC (see here), then run cfgdev on the VIOS.

Next you create (virtual) SCSI-devices on the VIOS: see the command "mkvdev" on the VIOS for creating such devices. You create such a device by assigning a "backing device" (some disk space the VIOS can control) and connect it to a virtual SCSI adapter.

For instance:
Code:
mkvdev -vdev hdisk10 -dev vtdisk_lpar5 -vadapter vhost5

This means: take "hdisk10" on the VIOS and use it(s disk space) to create a virtual disk "vtdisk_lpar5", which is connected to a virtual SCSI adapter named "vhost5". If "vhost5" is connected to the "lpar 5" you can run the cfgmgr command there and the newly connected disk would appear.

I hope this helps.

bakunin
 

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LEARN ABOUT NETBSD

trm

TRM(4)							   BSD Kernel Interfaces Manual 						    TRM(4)

NAME

     trm -- Tekram TRM-S1040 ASIC based PCI SCSI host adapter driver

SYNOPSIS

     trm* at pci? dev ? function ?
     scsibus* at trm?

DESCRIPTION

     The trm driver supports PCI SCSI host adapters based on the Tekram TRM-S1040 SCSI ASIC.

HARDWARE

     Supported SCSI controllers include:

	   Tekram DC-315 PCI Ultra SCSI adapter without flash BIOS and internal SCSI connector

	   Tekram DC-315U PCI Ultra SCSI adapter without flash BIOS

	   Tekram DC-395U PCI Ultra SCSI adapter with flash BIOS

	   Tekram DC-395UW PCI Ultra-Wide SCSI adapter with flash BIOS

	   Tekram DC-395F PCI Ultra-Wide SCSI adapter with flash BIOS and 68-pin external SCSI connector

     For Tekram DC-390 PCI SCSI host adapter, use pcscp(4) driver.

     For Tekram DC-310/U and DC-390U/UW/F PCI SCSI host adapters, use siop(4) driver.

SEE ALSO

     cd(4), ch(4), intro(4), pci(4), scsi(4), sd(4), ss(4), st(4), uk(4), scsipi(9)

     http://www.tekram.com/

AUTHORS

     The trm driver was originally written for NetBSD 1.4/i386 by Erich Chen of Tekram Technology, and Rui-Xiang Guo rewrote the driver to use
     bus_space(9) and bus_dma(9) for NetBSD 1.6.

BSD
								 November 6, 2001							       BSD
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