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Storage, Backup and HA for new vmware architecture.

Greetings,

We're looking to virtualize our servers. I have a few questions but first of all, this is what I currently have.

1 Exchange server
2 TS server
1 Domain controller
1 Linux
1 PBX on windows 2008

I have about 40 employees.

I'm looking at the Dell R510 Dual E5620 Xeon with 32GB ram. 4X300GB SAS. To host this.

First of all, would you recommend me to buy two servers and to share the vm between both ?
Should I use Vmware HA, Vmotion or should I buy something like Vreplicator or Veeam software ?
Or do I need both ?

I was thinking to use a QNAP TS-859U-RP+ Turbo NAS with 8X1TB Seagate 7200rpm 32M cache. It's ISCSI compatible.. and it's VMWARE compatible. Do you think it will support all my vm load ? Exchange DB ?

How should I backup my VM ? Is VReplicator a good software for VM backup ? Do you have something else to suggest me ?

For the budget question...
About 8k$ for the servers
2.5k - 3k$ for Storage
?? for software

To resume:
- 1 or 2 servers ?
- HA or not ?
- Which backup solution can I, should I use ?
- Shared storage ? Will the Qnap do the job ?

Thanks in advance !


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tblinc
Asked:
tblinc
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2 Solutions
 
Neil RussellTechnical Development LeadCommented:
2 servers at that spec
HA if you can afford it is always a bonus
VRanger is great for a clustered VMware solution backup
NAS, SATA storage? Hmmmm


Storage is a big area with virtulization. If you spend extra cash anywhere spend it on your storage.  Your server has 4 x 300BS SAS drives, you dont need ANY for vmware, you can boot it off of a USB.  Thats gonna save you a lot of bucks, put that into your storage.
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Neil RussellTechnical Development LeadCommented:
Oh and are you sure that your PBX Supports virtulization? I know a lot dont
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You can use a single server to Host all your VMs, but you've got all your eggs in one basket. If the single HOST should fail, all your VMs, will fail. So you need to cost the risk assocoiated with a Server Outage, but also, if you use Shared Storage and the SHared Storage failed this is also a Single Point of Failure.

Another server and HA, will prevent this, at the expense of another server and shared storage.

User using the QNAP TS-859U-RP+ Turbo NAS here on EE have had poor performance using this iSCSI evice with SATA disks compared to local SAS disks.

Veeam Backup and Replication is a good choice and the World Leader.

You could consider vSphere VSA which uses the storage on the Host Servers, to create shared storage and a virtual storage array.

http://www.vmware.com/products/datacenter-virtualization/vsphere/vsphere-storage-appliance/faqs.html

Two Servers and VSA should fit the bill, and Veeam Backup and Replication for Backup.
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tblincAuthor Commented:
Neilsr: The PBX is supported on VM.

Hanccocka: If I don't have the QNAP, were will the Veeam Backup will be made ? The VSA is a nice idea and I agree that the SAS disk is a way better.. but I was wondering if the NAS could do the job.

So VSA will use the SAS drive from both server ? What about network traffic ? Should I simply use the local storage of each server and copy replicate the VM using Veeam ?

Will HA works in those setup ? (VSA or Local)
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Neil RussellTechnical Development LeadCommented:
Another point of course, you mention 1 AD DC !

Make that 2. NEVER have a comain running with ONLY 1 domain controller unless your skint.If your skint, sell your kids and use the cash for a second DC.
Make sure BOTH are GC's and IF you go for 2 server hosts then tie one to each physical box in your cluster.
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tblincAuthor Commented:
Thanks for the advice.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Veeam Backups need to backup to some network share, a inexpensive NAS can do this, but slow write performance will slow backups down.

Okay, using the NAS for backup is okay, I thought you were thing of using for shared storage.

HA requires Shared Storage, its designed by VMware for HA, DRS, vMotion by VMware.

Network traffic is fine, if you have good 1Gbe switches for the servers.

HA will not work without shared storage.

that is one DR scenario, one server, backup using Veeam Backup to NAS, or replicate to another server.
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tblincAuthor Commented:
I effectively was thinking of using NAS for shared storage. eheh. I won't !

So if it looks like this.. I should have some quite nice DR scenario.

- 2 servers with VMware Essentials +
- VSA to share my local SAS storage.
- HA and Vmotion configured on each physical server (for hardware failure / maintenance)
- 1 NAS for Veeam Backup. (for software failure)

Shouldn't I also backup the data file on my server ? If users accidentally delete some files, corruption or things like that ? Am I safe with Veeam backup ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You are perfectley safe with Veeam, it supports File Level Restore, Replication, Backup, DR
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Good Design, install ESXi on USB or SD card and leave internal storage for VSA, if you got cash left purchase more SAS disks, more disks more spindles more performance, and do RAID 5.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
sorry what am I typing brain tired...

RAID 10!!!!!!
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tblincAuthor Commented:
Is this all compatible with ESXi 4.1 ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
vSphere 5.0 is what you should now be implementing.
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tblincAuthor Commented:
This is brilliant !

This is exactly what I wanted to know !

Thanks very good support !

Last thing.. is it better to make my backup on a nas server or directly to the VSA ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
NAS is cheaper storage, than VSA, and if VSA fails, where is your backup?
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tblincAuthor Commented:
Indeed. So VSA + NAS for backup.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, better idea.
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tblincAuthor Commented:
thanks
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