Virtualization, Storage & Backup

Virtualization lets one or two strong servers do the work of five old ones. It is also a good excuse to fix storage and backups at the same time.

Why bother with virtualization

Many offices have a server for accounts, another for files, another for the old software nobody dares to touch. Each one is a separate machine to power, cool, patch and worry about. Virtualization puts those jobs on one or two stronger servers as separate virtual machines. You use less power, the room is calmer, and moving a workload to another machine, or restoring it, becomes a matter of minutes.

VMware or Proxmox?

A lot of clients ask this now. VMware changed its licensing after the Broadcom takeover and many small and medium businesses found the renewal cost jumped. Proxmox is an open-source alternative that is very capable and costs far less, but it asks for a bit more comfort with Linux. Hyper-V is another sensible option if you are a Windows shop. We have no favourite. We look at what you already own, who will look after it afterwards, and how much a licence will cost you over five years, and then recommend one.

Storage

Shared storage lets several servers use the same disks. For small teams a NAS (network attached storage) with sensible RAID and a good UPS is often all you need. Bigger setups use a SAN, or storage built into the servers themselves. We size it by what you store and how fast it has to be, not by the biggest number in the brochure, and we leave room to add disks.

Backup, the dull part that matters

RAID is not a backup. It protects you if a disk dies, not if someone deletes a folder, a virus encrypts everything or the room floods. A proper backup is a separate copy, in a different place, that you have tested. We usually set up daily backups to a second device, a weekly copy that goes offsite or to cloud storage, and one copy that is not connected to the network at all, since that is the one ransomware cannot reach.

Disaster recovery in plain words

Two questions tell you what you need. How much data can you afford to lose: an hour, a day? And how long can you be down: an hour, a week? Answers to these set the budget. A shop may be fine restoring tomorrow morning; a call centre may need to be back in an hour. We write a recovery plan on two pages, not twenty: what happens, who does it, in what order. Then we run it once, so the first time is not during a real emergency.

It fits with a proper server room and with the protection in cybersecurity. For small offices without a room at all, our hardware and network team can suggest a simpler setup.

Products for this job: rack servers and NAS storage.

Frequently asked questions

Is virtualization worth it for a small company?

If you have three or more servers or one server that runs several jobs, usually yes. You save on power and hardware, and recovery becomes much easier. For a single server with one job it is often not needed.

Is RAID enough as a backup?

No. RAID keeps the system running if a disk fails. A backup lets you go back in time after a mistake, a virus or a disaster. You need both.

How often should we test the backup?

At least twice a year for a normal office, and any time something major changes. We include a test restore in the setup and can repeat it under a maintenance contract.

Can you migrate our old servers without long downtime?

In most cases yes. We copy first, test the copy, and switch during a quiet window such as a weekend, keeping the old machine until you are sure.

Virtualization, Storage, Backup & Disaster Recovery in Rawalpindi