Have you ever experience your Virtual Console down and VMWare Infrastructure Client not working?
Here’s an alternative solution for you: a Bash script to run on your ESX Server.
Sample screen shot:
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VMWARE ESX Management Tool Script
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Author : http://malaysiavm.com/blog
Version : 1.00.20081107.14.31
Supported ESX Version : 2.5 – 3.5
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0. VM Informations
1. Register VM
2. Unregister VM
3. Check VM Status
4. Power ON VM
5. Power OFF VM
6. Suspend VM
E. Exit
Choice:
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Your customer want you to add a new volume in one of the VM Windows server but can not affort down time? No worry, you can do that easily with ESX.
Below is step by step guide with screen captured from the VM (my test machine is running on Windows 2003 Enterprise):
Tip: It is best to do a snapshot before you start this task, incase anything goes wrong.
1) This is my test VM machine. It is having one disk at beginning.
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Your customer want you to add a new volume in one of the VM SLES server but can not affort down time? No worry, you can do that easily with ESX.
Below is step by step guide with screen captured from the VM (my test machine is running on SLES10 SP2):
Tip: It is best to do a snapshot before you start this task, incase anything goes wrong.
1) This is my test VM machine. It is having one disk at beginning.
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VMware ESX host need to have storage available before create VMs. Normally the storage is a LUN created on SAN. The question is, what is the best size for a single LUN (storage) in ESX?
Our design for a storage on ESX is 300GB, allow maximum VMFS up to 256GB.
The reasons behind are:
- better I/O performance: Each storage in ESX, we only assign to 5 VMs or less. Since more running VMs on a single storage will hit into the LUN I/O speed bottle neck.
- better disk utilization: You can safe lots of unuse space when you do it small. Say You assign a 2TB storage that can keep 40 VMs, but you only have 20 now, you actually waste 1TB which is sitting there doing nothing. But if you make each storage small, you can create only when you need it. It is much more manageable on SAN disk allocation point of view.
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The following article will share how to add new hard disk into SuSE Linux Enterprise Server without reboot.
Follow these steps:
- Create a new LUN and assign to the ESX Server Storage Group on SAN.
- Rescan Storage Adaptors on ESX Server Virtual Infrastructure Console.
- Add new Hard Disk into VM by Edit Setting.
- Open VM Console(SSH will work as well).
- Detect new disk command # rescan-scsi-bus.sh
- Find new disk command # cat /proc/partitions
- Create new partition on the disk command # fdisk /dev/sdx
- Format new disk partition # mkfs.ext3 /dev/sdx1
- Edit /etc/fstab to add in permanent mount point for new disk and partition.
- Mount new disk # mount -a
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