Tips to Prevent Data Loss in Your RAID-based Storage Array

The term ‘RAID’ is defined as ‘Redundant Array of Independent Disks’ and primarily serves as a data storage system which is commonly used in enterprises and businesses. The RAID servers help to store a substantial degree of information in more than one hard drive. The categorisation of the servers has been bifurcated into different levels such as that of RAID 0, 1, 2, 3, 4, 5 and so on and so forth and this in turn, is subject to the sheer number of hard drives as well as the redundancy offered by the technology used. The chief objective is to have multiple redundant drives so as to avoid any potential data loss in the event of failure of the drive. If one of the drives happens to fail then it is possible to access data from the rest.

This in turn, will lead to data reliability & availability, along with storage capacity which are instrumental in improving performance. Furthermore, there are numerous ways and methods to redundancy namely server, storage, power, network, load balancing, site redundancy, disaster recovery, data backup and data replication. With that being said, RAID is very much pertinent to withstanding and averting drive failure without having to lose access to your data and what is important to remember is that any drive that is devoid of RAID will in all likelihood, fail. If that happens, then it means you will have lost all your data but there is an exception in cases wherein, there is a backup installed in external drives.

But one needs to keep in mind that RAID servers are subject to failure which can cause a loss of raid data.

What causes issues of data loss and RAID failure?

Virus attack

Even though RAID servers have protection from strong anti-virus programs, the virus attach can prove to be catastrophic because of the divisive code

Fault of the users

Mishandling on the part of the users in question, is actually quite a common occurrence. This can be observed in cases where there are partition overwriting problems, partition formatting or deletion, data formatting or deletion, inadequate reinstalling or even in the case of an accidental reconfiguration of the RAID partition.

Power shortages

Issues related to electrical power are some of the typical causes for data loss and failed RAID servers.

Natural disasters

Fire or water caused from natural disasters i.e. the eruption of volcanoes which causes the lava to emanate or the water from severe floods could serve to be detrimental to the RAID systems and essentially render these systems null. Part of the reason why this is so is because disasters can do extensive to the hardware and software alike. To rebuild them would mean reconstructing the file systems using specific solutions and techniques to be able to restore data from the RAID systems which has encountered a failure.

Tips to remember about data loss and RAID failure

  • Install an efficient antivirus that manages to update to the latest release
  • Try to avoid any mismanagement such as not doing any deletion or formatting of drive partitions/drive data
  • Avoid any overwriting
  • Avoid installing in the wrong fashion and neither should you reconfigure RAID partitions
  • Ensure that are no power outages and see to it that the RAID servers have a power supply which is uninterrupted
  • Ensure to protect your RAID systems in the event of a natural disaster such as a flood or volcano eruption
  • Make it a point to label the drives in the order of their positions
  • Do not attempt to repair the drives which are damaged on an inaccessible partition along with a repair utility
  • Before attempting to rebuild RAID, make sure that your drives are in a healthy condition
  • If many of the drives have encountered a failure simultaneously, then you will need to put a stop on the RAID rebuilding process immediately
  • Do not allow for any fragmented utility unless you’ve inspected the overall health conditions of the individual drives
  • In case any of the drives in RAID 5 or any of the other of the aforementioned RAIDs are in a corrupt condition, then you will need to ensure that the new drive which is laden with zeroes has either more or equal sectors located in the damaged drive. All this needs to be done whilst you replace it with a new one