What if, your server suffered an unexpected hard disk failure and the entire data on your server suddenly vanished? You frantically look for ways to recover the lost data, only to find that there are no backups available.
A single disk failure instance has turned out to be detrimental to your business. Data loss due to disk failures, human errors or virus attack can lead to business downtime and financial loss.
In spite of that, many business owners tend to overlook this risk and skip the backup process, leading to catastrophic events. For every business that depends on data availability, it is therefore very critical to safeguard and backup data. (more…)
Fixing OnApp error “Cannot snapshot a degraded Vdisk” was last modified: July 19th, 2017 by Reeshma Mathews
It is unwelcome, it is tedious, but it is inevitable.
Every service provider dreads a hard disk crash, and the downtime it can lead to, but it is one eventuality that will happen sooner or later.
Today was one such day. A high priority alert notified our Dedicated Linux Server Administrators about a degraded RAID array in a data center we managed. Hard disk crashes are a P0 (highest priority) alert in our infrastructure management procedures, and initiates an emergency response.
The ability to make choices based on facts and analysis, has always been a challenge for a person managing IT infrastructure. Much of this hardship can be attributed to the day to day advances in technology, and stiff markets.
Adopting a specific RAID technology, involves finding the right implementation that meets all your requirements. It is more or less, striking a balance between cost of devices, performance, and fault tolerance.
Apart from the big decision of selecting either hardware of software RAID, which I will cover in my next blog, selecting RAID levels is the first step.
A term coined decades ago, RAID is essentially, disks arranged in a manner to protect the information they contain – simply by adding redundancy.
While there are multiple expansions for RAID – Redundant Array of Inexpensive Disks, which has now transformed to Redundant Array of Independent Disks, the aim is essentially to protect the data and RAID achieves this, by not putting all the data into a single disk.
Performance of storage media, gains a lot of importance in cases where data in the media is to be constantly read from, or written to. Many a time, the bottleneck in a computing environment is related to this input/output performance. Most RAID configurations provide performance enhancement that make it a popular option of SME’s and web-hosts.
There are two major events that haunt every Webhost. One is the ghastly image of the word “HacKeD” popping up on all of the sites on their server, usually accompanied by a skull. Neon green always being the color of choice. The second is usually in the form of a mail or phone call informing you that the hard drive on your server just went bust. As far as problems for Webhosts go, these rank right up there with “Houston…we have a problem.”
Backup and Recovery Strategy for a Webhost was last modified: July 18th, 2017 by Hamish Oscar Lawrence
Bobcares is a server management company that helps businesses deliver uninterrupted and secure online services. Our engineers manage close to 51,500 servers that include virtualized servers, cloud infrastructure, physical server clusters, and more.