Train accident LIVE..body..ALIVE..very scary to watch

PARENTS WATCH..KIDS HOSTEL LIFE never imagine...kids harassment

STORAGE Basics

STORAGE Basics:-
File System- Disk layout to read data/write the data.

File systems-
Windows
FAT-  File system allocation
NTFS- New Technology File System
Unix
File System- ext3/ext4
ex- extended file system
- ext3- ext2+journal form- developed from  version 3.0
ext3 is essential file system,easily migrate from ext2 to ext3
- ext4- ext3+journal form- developed from  version 6.0
ESX/ESXi-
VMFS- vmware file system

VMFS 3/VMFS5/6

Featurs-
we can share the hard disk
Sharing is very freely work.
DATASTORE- 
A LUN formated with VM's
LUN- Logical Unit Number

Types of Storages
1.FC - Fiber Channel
2.ISCSI- Internet Small Computer Syatem Interface.
3.NAS- NETWORk Attached Storage.

FC- Datawill pass light signel format

ISCSI- Cables(electronic cable like) performance bit slow than FCcost is low.

NAS-  Less cost .

HBA- host Bus Adapter
WWN- World Wide number or Name
ADD FC to Host-

1.VMWare WWn info
2.SAN-map LUN with specific host
3.VM- create datastore.

Locate WWN info:-
ESXi- Configration-> storage Aapter-> copy 
Creaye Datastore-
ESXi-configration->

VMware Tools,Status ,Installation,UPGRADE

VMware Tools-
1.video(Video related)
2.SCSI(Small Computer System Interface,main use scaner,printer disk)
3.Baloon(memory management)
4.Time Syncronization(server time)
5.NIC(Network related)

VMware tools is nothing but Set of drivers from VM.

Main purpose of VMware tools usage is it's increase the system  performance and Audio and video.
STATUS-
1.Not installed
2.Out dated
3.Current
VM -> summary->VMWare Tools

Note-   Not installed and Outdated both same Process we can install Vmware Tools.other wise we can get OS ans system other updates.

Install:-
VM-> right click-> Guest-> install/upgrade tools-> ok
NEXT
Go to My compute-> double click on cd/dvd-> next-> next-> finish.

NOte:-
If VM is on ESXi 5.0 or lesser than that version VM should reboot and apply drivers.

If VM is on ESXi 5.1 or lter version then no reboot needed.

VMcreation,cloning,cloning types,Template

VM creation-
To create VM in 5 ways -

1.create VM directly on ESX/ESXi
2.clone
3.Template
4.P2V/V2V
5..OVA/OVF
1. Create VM directly on ESX/ESXi
Connect to ESXi using vsphere client

Right click-> New VM ->Name- RAM/CPU/Hard disk->next->finish.

2.Cloning-
Duplicate an existing VM.
Normal we build a VM  it's take time  .so we can   minimize the time

clone-  VM -> Right click->enter the vm name ->select the destination(Host/Storage)->next->finish
SID- Security Identifier.

Clone types-
Hot Clone
Cold Clone
Hot Clone- Cloning a power on VM(online)

Cold Clone- Cloning the power off VM(offline)

Note:-
OS never change the cloning.
Cloning never copy the ESXi host

Template-
Duplicating an existing VM  or Master copy of VM.(Deploy the Template)
-we an multiple deploy(Multiple  VM)
Create Template-
Power off VM->Right click->Template->convert to Template

Deplot VM from Template-
Template-> Right click->deploy vm from template->enter vmname ->select destination(host/storage)->finish.
Template like a book symbol
Note-
-OS change the template but we can change template as VM (convet as VM)  then do as some changes then convert template.

.OVA/OVF-
OVA- Open virtual appliance(.ova)

OVF- Open Virtual File(Configration,Hard disk)

Export to OVA-
power off VM-> file->export->export as ova-> select destination(host/storage_-> ok

SAME LIKE OVF.

Deploy from .OVA-
Vcenter-> file-> deploy from OVA->select source file ->enter vm name ->  select destination(host/storage)-> next-> finish.

VMware Products and Servers using Real time,installation process

Requirements-
Server OS
Windows server 2003
Win server 2008
Win server 2007
Win server   2010 
Win server 2012(latest GUI)

Client OS
Window xp
Win  07
Win 08
Win 98
Win vista
Real time server-
Hp  - proliant BL 380
Dell- power edge R900
Cisco- C240 M1
IBM- System X 3650
VMWare Products-

Vcenter- Virtual center
ESX- Elestic Sky Ex
ESXi- Elestic Sky EX independent or integration
Vsphere client
Versions-
Vcenter- 2.5,4.0,4.1,5.0,5.1,5.5,6.0(New)
ESXi- 3.5,4.0,4.1,5.0,5.1,5.5,6.0
ESX- 3.5,4.0,4.1
VMWare Version- 4.0,7,7.x,8,9,10,11
Note- After 4.1 there is no ESX change as ESXi
5.5 is stable version
5.1 connectivity issues
6.0 still R&D going on(few companies are using this new version)
Vcenter- Centralized management interface.
Vsphere client- connecting the application.

Virtual Machine(VM)- A software computer (A set of files)
Files-
-vmware.vmx- vm configuration file(power off ,power on)
- .vmdk - vm hard disk file(index file)
-flat.vmdk -vm hard disk file (actual data)
.nvrm - BIOS file
vmware.log-log files (power on to power off=1 log file)
vmware.log n(number)
ex- vmware.log2,vmware.log3 etc...
- .vswap -swap file(created when power on, deleted when power off)
-.vmsn - snap shot files
-.vmsd- snap shot fils.

Why we need VMware(virtualization)
virtualization- Transforming the hardware into software.

benefits-
- To reduce the infrastructure cost.
- for effective utilization hardware information(hardware resources like RAM,hard disk)

virtualization Types-

1.Server virtualization
2. Network virtualization
3.Storage virtualization
4.Application virtualization
5.Desktop virtualization
virtualization  providing software companies.
company        product

VMWARE    (vsphere)  (leading in the industry)
Oracle            (virtual box)
Microsoft     (Hyper -virtualization)
Citrix             (Xen-Application,xen server)
Redhat           (KVM)
and many other companies also available but above are the best.
VMWARE main concepts:-
Virtual  Machine
Vcenter
ESX/ESXi
Virtual Storage
High availability and  DRS
Deploy,manage  and patching.
Update manager
ISCSI, FC, NFS,
Snapshots
Migrations - v Motion and s Motion