Lab configuration: Part 1
Configuring and Testing High Availability of VM: Part 8
Powershell Rocks - Creating virtual Nic cards for testing (Standalone HyperV)
Error resolved: Hyperv cannot be installed: A Hyperviser is already running.
Preparing iSCSI Target (installing and configuring Microsoft Software Target 3.3)
What is Microsoft iSCSI target?
Microsoft iSCSI Target (Server) is a software where Disks (Luns) are
presented to their initiators (Clients) to access it concurrently over network.
From above screen as you can see iscsi target software is installed on bottom
server and it has created 2 VHD extention (virtual harddisk) files, then they
are accessed by initiator (client) servers on network. Initiators use them as a
local disks.
I am assuming here you have downloaded Microsoft iSCSI Target 3.3 on iSCSI_server,
log onto it. Execute installation setup, extract files to default c:\iscsitarget.
Execute iscsitarget_public.msi from c:\iscsitarget\x64
Main part starts from here, Install software with all the defaults. Launch Microsft iSCSI software
Target from administrative tools.
Right click iSCSI Targets, and click Create iSCSI Target.
Enter the name for iSCSI target, description is optional.
Next screen is something similar to SAN zoning, here I am going to add hyperV servers' ip address in
the advanced, so only they can access lun presented by this target. Press
Advanced button.
Press ADD button to add which host can access this target, Select IP
address from the dropdown list, you can use hostname, initiator IQN as well.
IQN stands for iSCSI qualified name, you will find it on iSCSI
initiator once you start the service on the hosts.
Add ip address in value click
ok, Once you add IP addresses of HyperV servers, it will show in the identifiers
list. While adding more than one IP it will show another dialog box that do you
want to use this target by multiple initiators, press ok twice press next then
finish.
Your iSCSI target is ready, but there are no disks to present to
initiator. lets create it. Right click iSCSItarget, select create virtual disk
for iSCSI Target
I am keeping my files on d:\vDisks folder as shown example and
always give .vhd extension for file, without it, It will not process. Click
next.
Next configure size for vhd file, I have total 40 gb of D drive space and
39.30 GB is free, so I can only assign below 39.30 gb size for the vhd file,
configure it to 20000 MB means 20 GB. If you add another disk you will see only
19.30 GB is remaining. And if you try size more than 19.30 gb you will get
error not enough space at the finish.
Next screen is Description for the virtual disk, it is optional and can
be press next to finish wizard.
Same way create another disk with below configuration
File name and location
|
D:\vdisks\Quorum.vhd
|
Size of virtual disk (MB):
|
1000
|
Virtual disk Description
|
This is Quorum disk
|
It will look like below once configured.
Open D:\vdisks and check the file size and extensions.
CBM file is for integrity check
of VHD file, When creating a snapshot of a VHD, the CBM is used to track the
changes to the VHD file since the last snapshot, which allows fast rollback of
the VHD.
Here our iscsi target server is ready and working now need to configure
iscsi initiators.
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