As you may have noted on our website, we provide the Microsoft Small Business Server 2011 (SBS 2011) solution which is perfect for SME businesses with up to 75 users. One of the great things about SBS 2011 is the built-in backup utility that takes a complete image of the server (the System State and Data) and then adds incremental backups each day.
We typically recommend each purchaser of the SBS 2011 also purchases a couple of high capacity external hard drives to backup the server. Due to their capacity they are able to take the full image mentioned above and also backup several months-worth of data depending on the amount of incremental data added on each cycle.
Often when we recommend external hard drives, clients ask about tape backup devices and tape storage, as this is what they have been used to previously and they want clarification as to why disk technology is the preferred route.
Recent research by IDC summarised top five reasons why firms are abandoning their tape based back and recovery solutions. The findings also support our recommendations for disk backup technology.
1. Subpar backup performance
- Tape systems are having difficulty meeting shrinking backup windows.
- Daily and weekly incremental backups have been exceeding the allotted time windows.
- Recovery from physical tape is cumbersome and time consuming.
2. Lengthy recovery time
- It is all about recovery in user environments.
- Recovery of business-critical data and applications from tape takes many hours, if not days. Ironically the ‘best practice’ of using offsite tape repositories adds to recovery time.
3. Spiralling operational and capital costs
- Tape deployments are costly and cumbersome to maintain long term.
- Adding capacity to existing tape libraries and upgrading tape drive technology to non-compatible, higher-capacity media can be a costly endeavour.
- Ongoing service, support, and warranty can be high, especially for aging tape systems.
4. Mitigate risks from lost or misplaced tapes
- Shipping tape cartridges to offsite repositories exposes firms to risk due to loss.
- Companies must invest in tape encryption and key management systems to alleviate security risks, which adds cost and complexity.
- The ‘human element’ involved when handling tape can add to risk of loss (could be operational cost as well).
5. Lack of storage efficiency
- Tape based compression is typically on 2:1.
- In many cases, customers must move to another media type to gain additional capacity – not always read or write compatible.
- There has been an explosion of the growth of redundant data using tape backup.
The use of disk in the backup and recovery process relieves many of the bottlenecks associated with using traditional tape methods. Customers are demanding faster backups to meet their shrinking backup timescales. As such, disk backup technology meets these needs.
As an addendum, we are not suggesting disk backup is the be-all and end-all. For added protection against data loss, we also suggest clients consider remote backup of business critical data to another location. This is relatively cheap and worth every penny if you have ever had the misfortune to lose some valuable data.