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Tag Archives: eSATA

Hard Drives - Part 7 - Protecting Externals

Posted on May 06th, 2013 by Tim

In this series of mini-blogs we’re looking at hard drives. What are hard drives, why do they fail and what can you do to extended their life and prevent data loss?

Why Protect External Drives

Just like their internal cousins, external drives are reasonably fragile. They contain numerous moving parts and are very susceptible to damage when they are spinning. This is compounded by their usage which often sees them hanging from a laptop when powered meaning they tend to fail far more often than both desktop or laptop hard drives.

Whilst the chassis of an external hard drive offers some protection they are  still far more fragile than a drive safely housed inside a PC or laptop. A standard external drive may have a few millilitres of plastic around the drive but that doesn’t offer a great deal in terms of shock protection and  provides almost nothing if the drive is spinning and then dropped.

How to Protect External Drives

  • Don’t move external drives when the are connected.
  • Sit them carefully on a solid surface when they are connected and treat them with care to avoid knocks and bumps.
  • If you are using an external drive as a backup on a server. Disconnect the drive and wait 5 seconds before moving it. Don’t pick it up whilst it is still connected.
  • If you are worried about a drive getting damaged in transit – Chose a model that offers some physical protection such as rubberised case or bumpers.
  • Would a USB pen disk suit you better – These are solid state (i.e. no moving parts) and are therefore less unacceptable to movement damage.

Next Time – Data Protection

With so much data stored on an external drives, data protection quickly becomes an issue. Check out our next blog entry for some great tips on protecting the data stored on a drive.

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Hard Drives - Part 6 - External Drives

Posted on May 03rd, 2013 by Tim

In this series of mini-blogs we’re looking at hard drives. What are hard drives, why do they fail and what can you do to extended their life and prevent data loss?

What are external drives

External drives are in many cases exactly the same technology as their internal counterparts – indeed often the exact same drive. Internally a hard drive is mounted in either a laptop or desktop PC drive cage and then connected to the motherboard via its on-board interface (usually a SATA cable). With external drives the same drive is mounted in a plastic case which is then connected to some form of intermediate interface – usually a USB or eSATA connection. The important thing to realise here is the drive within the plastic case is exactly the same as the drive in your computer and is subject to the same mechanical issues as those drives.

External drives comes in two flavours:

  1. Portable Drives – Contain a 2.5″ laptop drive; are smaller and lighter and do not require a separate power supply.
  2. Desktop Drives – Contain a 3.5″ desktop drive; are larger in physical size and data sizes and cheaper per MB but usually require a separate power supply.

External hard drives have numerous uses in the business including:

  • Bulk storage for data that is not used frequently (such as music or movies).
  • Backup of laptops, desktops and even servers.
  • Bulk movement of data around the office.
  • Bulk movement of data between offices / home / clients etc.

Next Time – Protecting External Drives

Because of their flexibility we find external drives in use throughout most of our clients. However, by their very nature external drives are subject to even more risk that their securely housed internal brethren. Next time we’ll be looking at the various options to protect your data.

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