- First, keeping a lot of physical servers just out of laziness.
- Second, not implementing a separate iSCSI network.
- Third, not implementing a separate backup network.
- Forth, not implementing redundancy in (the only) network.
- Fifth, not choosing a VMware license which allows live migration (the customer thought they had but they didn't. VMware Essentials Bundle is.... just expensive)
- Sixth, not implementing a backup solution that targets a virtualized environment, just continuing the backups as usual and with no other backup storage then the primary deduplication disk.
- First, P2V ALL servers that does not require physical servers.(Lack of serial ports or USB is not a reason. There are dedicated, cheap, network appliances for that. Think $200.)
- Second, implement a seperate, redundant, iSCSI network using two Gbit switches.
- Third, implement a seperate backup network.
- Forth, implement redundancy for the server network using two Gbit switches.
- Fifth, change virtualization solution from VMware not-so Essential Bundle to Windows Server 2012, Hyper-V 3.0. Use the built in NIC teaming. Microsoft SA (Software Assurance) makes is "free" to change platform.
- Sixth, handle the backups of the 100% virtualized platform for what it is. Virtualized. Using proper agents. In this case, Symantec Backup Exec 2012 V-Ray Edition licensed for 4 CPU's. And choosing GRT for all applications such as SQL, Exchange, File etc.
Duplicate dedup-data to tape as secondary storage and and for long-term data storage.
So easy, and for almost no extra cost, to change. Just a couple of cables and switches, an Ultrium 5 tape machine, and choosing the correct license form for your IT-platform.