Archive for the ‘RAID 1-10’ Category

How reliable are the new generation multi terabyte hard disk drives?

Thursday, December 17th, 2009

As we come to the end of the year, 2010 is going to be the age of multi-terabyte storage, with many manufacturers introducing 2TB hard drives. But how reliable will they be?

A new manufacturing process that will put 640GB on a single HDD platter, has allowed manufacturers to dramatically increase storage capacities drastically. As the 3.5-inch drives used in desktop PCs typically hold four or five platters, that suggests a whopping 3.2TB hard disk space of storage on a single drive. Looking at the likely timing, the new manufacturing technology could put the giant drives in shops as early as February next year.

Don’t be fooled by External Hard Drives

Tuesday, November 3rd, 2009

It’s an unfortunate fact that hard disk drives are rather slow at storing and retrieving data. Due to their mechanical nature they can only retrieve and send data to the controller at a certain speed. Many users now opt for an external hard drive as a supplement – big mistake if you are storing a lot of critical data, such as client files etc.

Hard disks are mechanical devices with moving parts, and as such will break down eventually, compromising any data stored on them that is not backed up. External drives are likely to break down much quicker. One technology that was developed to deal specifically with this issue and deal with this is a RAID data recovery drive (Redundant Array of Inexpensive Disks).

RAID Level 1 or 5 – why not try Level 1+0 or 6?

Wednesday, September 9th, 2009

RAID-6 offers additional redundancy in allowing for two simultaneous drive failures. It is essentially an extension of RAID level 5 which allows for additional fault tolerance by using a second independent distributed parity scheme (two-dimensional parity). RAID 10 (or 1+0) uses both striping and mirroring. Either way RAID data recovery is always an option.

Drive failures frequently are correlated and if you absolutely don’t want to lose your data, RAID 6 is the safer of the two options. There’s always the possibility that a second drive will fail during the build of the hot spare process.

RAID Levels for the Thecus N4100

Wednesday, June 3rd, 2009

RAID Levels

The Thecus N4100+ supports standard RAID levels 0, 1, 5, and JBOD. You choose
a RAID level when you create a system volume. The factors for selecting a RAID
level are:

  • Your requirements for performance
  • Your need for data security
  • Number of hard disk drives in the system, capacity of hard disk drives in
  • Will you be required to perform a RAID data recovery

the system

The following is a description of each RAID level:

Understanding RAID data recovery

Wednesday, March 19th, 2008

RAID data recovery is, of course, the act of recovering data from a RAID system. For those of you in the dark about what a RAID system is, I hope to shed a bit of light on the subject in this brief outline. I will also point you to a few sources for RAID data recovery that can help your issues with ease and recover your lost data in no time and with very little cost. All of this, of course, can be done at your greatest convenience but I’m willing to be that data recovery is no matter of convenience.

RAID Data Recovery for Those Who Have Crashed, Burned… and Learned

Wednesday, March 19th, 2008

If you want to know about RAID data recovery, it means either one of two things. You’ve maybe crashed your hard drive – or are afraid it may soon crash – and are looking into storing data using RAID’s scheme (redundant arrays of inexpensive disks, “independent” sometimes used in place of “inexpensive”).

It could also mean that you’re trying to recover files from a damaged RAID. Since the RAID system uses multiple hard disks, you can suffer either partial or whole failure.

You’d think that your database would be safe after you’ve protected it with a RAID backup. But statistics show that of total data loss in any system, approximately 44% comes from hardware failure.

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