upgrade query from esx3.5 u4 to vsphere

[vcms]

hai

i sucessfully upgraded my test server with 1.5 tb of lun from esx3.5 to esx4.0 , now i want to do it to my company production site it has 4 ESX 3.5 hosts and 28 live servers ,

precautions i did for test upgrade upgraded vcentre and

1) shut down vms

2) moved esx to maintainance mode

3) started hosted update facility pointed to that esx 4dvd iso image and upgraded sucessfully

4) upgraded vmtools

5) upgraded virutl hardware

now i am going for my production site

these are the general steps i follow but my production cluster has 28 vms in common lun of 2tb

besides shutting down vms what should i do to the lun, should i leave the lun attached to esx during upgrade (earlier i left it as it is ) and upgraded sucessfully but this is my live environment and i dont want to

have any disaster

all advices are most welcome :smileygrin:

vamsi

[AntonVZhbankov]

I upgraded my ESXes without issues even with datastores attached.

---

VMware vExpert '2009

http://blog.vadmin.ru

[davver]

So did I.

Last week i upgraded 4 esx hosts from v3.5 to v4.0 with 6TB on data.

On the next site, you can find the howto's again for the upgrade.

http://www.vmware.com/products/vsphere/upgrade-center/upgrade.html

[vcms]

hai

what iam asking is my 4 esx hots have 2 common luns attached . they have 28 vms i upgrade esx by host update facility with out removing those luns i have done this sucessfully with test iam a little bit in doubt for my production site ?:|

thank s

vamsi

[davver · Accepted solution]

Hi vamsi,

You do an uprgade. You wont loose any settings.

Your LUNs will stilled be recognized.

Met vriendelijke groeten

Davy Vermeir

Network Engineer

Tel. dir. +32 (0)3 451 32 39

Aurelium, People enjoying ICT

[AntonVZhbankov]

Backup all VMs and proceed.

---

VMware vExpert '2009

http://blog.vadmin.ru

[vcms]

hai

i would like to thank both of you ( ,[Anton V Zhbankov|http://communities.vmware.com/people/Anton%20V%20Zhbankov|Click to view Anton V Zhbankov's profile]) :smileygrin:

vamsi

[Sreejesh_D]

my two cents:

1. before upgrade ensure that your hardware (chipset, SCSI controllers, HBA, etc) are in the ESX 4.0 HCL.

2. Upgrade the BIOS and HBA firmwares to the latest one.

3. Read the vSphere Upgrade guide 4.0, especially the chapters 10, 11 and 12.

http://www.vmware.com/pdf/vsphere4/r40/vsp_40_upgrade_guide.pdf

4.Read the Upgrade known issues which are described in ESX 4.0 release notes.

http://www.vmware.com/support/vsphere4/doc/vsp_esx40_vc40_rel_notes.html#upgradeissues