Extending from ESX 3.5 (HP Server) with SAN + second server

Hello community!

We are currently working on extending our (tiny) virtualization environment. It consists of a single server:

-HP ProLiant 2 x QuadCore

-16 GB OF RAM

-3 x 300 GB SAS internal

-VMWare ESX 3.5

We want to expand storage with a SAN and a second server for better reliability and more. Our plan is to go the medium iSCSI and buy the following components:

(1) a Bay iSCSI SAN:

-HP MSA2312i DualController with 8 x 450 GB 15 k SAS

(2) two switches:

-Switches of GB class business with an internal switching capacity > 20 GB/s

(3) second ESX 3.5 server:

-same features as the existing ProLiant ESX 3.5

A few issues:

(1) hardware compatibility seems given to the MSA. The ProLiant server shipped with ESX, so I guess that its 100% compatible. Should I pay attention to the compatibility of the network components?

(2) what should I be careful when choosing switches for iSCSI SAN? Is a huge power of internal cut enough?

(3) what host iSCSI adapters performance gains would give me and it justifies the extra cost?

(4) can I combine the two machines as having different virtual machines on them, but also implement a sort of built-in security mechanism / HA, so that a machine can run temporarily all virtual machines of these machines in the case of a hardware failure on one of the ESX?

(5) there is what other mechanisms HA (cheap)? As only using a production server and the other as 'rescue' (virtual machines from the SAN on the machine hot standby in the event of a hardware failure on the production ESX)?

(6) do you have the General with our scheduled install concerns or advice for such a small virtualization environment?

(7) a less expensive configuration would also do the job (like using a less expensive Netgear NAS iSCSI as storage for virtual machines)?

Thans in advance! Kind regards

-sd

Hello and welcome to the forums.

(1) hardware compatibility seems given to the MSA. The ProLiant server shipped with ESX, so I guess that its 100% compatible. Should I pay attention to the compatibility of the network components?

MSA2312i is supported with ESX 4.0 U1, ESX 4.0, ESX 3.5 U5, ESX 3.5 U4, ESX 3.5 U3.  You do not specify the exact Proliant you use, but you can check it on the VMware Compatibility Guide.  You can also consult the various components of IO it - chances are good that you will be fine, but it is always good to check.

(2) what should I be careful when choosing switches for iSCSI SAN? Is a huge power of internal cut enough?

You summed it up above when you said "class business.  Buy company switches compatible with for your business.

(3) what host iSCSI adapters performance gains would give me and it justifies the extra cost?

Some, but it may not be enough to justify the cost - depends on your configuration.  Check it out "[comparison of the performance of the storage Protocol | ]. "[http://www.VMware.com/files/PDF/storage_protocol_perf.pdf] ' study of performance for more details.  It's been a while since the last, I checked, but once there is no supported iSCSI HBA for blades not HPs on 3.5.

(4) can I combine the two machines as having different virtual machines on them, but also implement a sort of built-in security mechanism / HA, so that a machine can run temporarily all virtual machines of these machines in the case of a hardware failure on one of the ESX?

Yes.  VMware HA or FT would work, but likely ft won't work on the Proliant you have.

(5) there is what other mechanisms HA (cheap)? As only using a production server and the other as 'rescue' (virtual machines from the SAN on the machine hot standby in the event of a hardware failure on the production ESX)?

This approach could work, if you do not have vCenter or VMware HA.

(6) do you have the General with our scheduled install concerns or advice for such a small virtualization environment?

Reference your current systems.  Find out what resources will be needed in.  Now, plan your backup strategy if you have not already.  This isn't something to do after the build is complete.

(7) a less expensive configuration would also do the job (like using a less expensive Netgear NAS iSCSI as storage for virtual machines)?

Of course, but you almost always get what you pay for.  See the above compatibility Guide and only buy storage which are listed there.  This is also where repositories of the project your systems and your needs in workload comes into play.

Good luck!

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