Real-time windows 2008 server or virtual machines mirroring
Hello all,
One of my clients wants me to implement a bullet-proof contingency solution for his servers.
There would be two physical servers located in two separate buildings. The goal is to achieve real-time synchronization between the servers.
I have read about clustering solutions where an i-SCSI storage is shared between the servers to allow failovers but I don't like the solution because the storage represents a single point of failure. In case of stealth, failure, fire, ... there is no storage anymore !
I thought also about installing Windows 2008 Hyper-V and replicate the virtual machines at night but the solution is not perfect since there can be data loss (between the last backup and the failure).
I'm looking for a solution where disks attached to (SAN/NAS) or local to each server would be replicated in real-time or a solution where the virtual machines would be replicated in the same way.
There will probably be one virtual machines for:
+ Active directory, DNS, WINS, etc (though it can be on the physical servers)
+ Exchange server
+ Intra/Extranet
+ File & Print
+ Remote Desktop
Any idea on how to perform this ?
Regards,
David
One of my clients wants me to implement a bullet-proof contingency solution for his servers.
There would be two physical servers located in two separate buildings. The goal is to achieve real-time synchronization between the servers.
I have read about clustering solutions where an i-SCSI storage is shared between the servers to allow failovers but I don't like the solution because the storage represents a single point of failure. In case of stealth, failure, fire, ... there is no storage anymore !
I thought also about installing Windows 2008 Hyper-V and replicate the virtual machines at night but the solution is not perfect since there can be data loss (between the last backup and the failure).
I'm looking for a solution where disks attached to (SAN/NAS) or local to each server would be replicated in real-time or a solution where the virtual machines would be replicated in the same way.
There will probably be one virtual machines for:
+ Active directory, DNS, WINS, etc (though it can be on the physical servers)
+ Exchange server
+ Intra/Extranet
+ File & Print
+ Remote Desktop
Any idea on how to perform this ?
Regards,
David
Doubletake was the industry leading product for replicating, there's a bundled package to replicate from physical to virtual but I think it's only for 4 machines rather than 5 in the bundle, although you can add more licenses of course. http://www.visionsolutions.com/
Platespin is another option for replicating VM servers/farms to other sites.
Also look at Veeam product
ASKER
Thank you all. Will analyze these tools and come back idea.
Is there no hardware solution available to mirror SAN/NAS devices in real-time ?
Is there no hardware solution available to mirror SAN/NAS devices in real-time ?
Yes, many SANs including iSCSI ones have hardware replication to DR sites. What sort of a budget is there and how many IOPS are needed?
ASKER
Is replication done in real-time ?
Global budget should be around 25.000€ (35.000$) for:
+ hardware (2 HP or IBM servers, 2 SANs)
+ software (Microsoft Windows Server 2008 R2 Hyper-V 20 CALs, Exchange 2010 20 CALs)
+ manpower.
Global budget should be around 25.000€ (35.000$) for:
+ hardware (2 HP or IBM servers, 2 SANs)
+ software (Microsoft Windows Server 2008 R2 Hyper-V 20 CALs, Exchange 2010 20 CALs)
+ manpower.
Just about manage a couple of HP P2000 G3 iSCSI plus remote snap for that price, but that's not including your servers or software.
ASKER
Doesn't mention remote mirroring between iSCSI units on the web page (can't open the PDF), i'd added that in to the price of the pair of P2000s plus 12 disks in each. Really does seem to be overkill for 20 users.
ASKER
Remote mirroring is not yet available on UltraStor devices (this is foreseen by the end of the year). Still analyzing the other suggested products and looking for other (cheaper) storage/remote mirroring capable devices than the HP P2000.
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ASKER
This is the solution to my needs
Hmm, wait 3 years and anything may happen. Probably best for us experts to wait 3 years before suggesting a solution next time.
ASKER
Not possible now would have been the good answer !!
It would have been a lie though since there were several products on the market which did the job when you asked the question, it was just that you were too much of a cheapskate to buy one of them.
ASKER
No products at a reasonnable price for a SMB ...