The practical uses of RAID in your everyday backup and workflow
In part 1 of 5 they explain the practical uses of RAID in your everyday backup and workflow, some options, and what to look for when buying a drive
What Is RAID 0 & When To Use It
In part 2 of 5 they explore RAID 0, what that means, and how to best utilize it in your workflow.
What Is A RAID 1 Hard Drive
In part 3 of 5 they explore the practical uses of RAID 1, what it means, and how you can utilize these drives into your workflow.
What Is a RAID 5 Hard Drive
What Is a RAID 5 Hard Drive
How Do Mobile Drives Compare To RAID Drives
In Part 5 of 5 they cover the comparison of using bus powered Mobile ATC drives on location compared to the speed of RAID systems covered in previous videos.
Text and video via www.rggedu.com
Text and video via www.rggedu.com
1 comments:
No no no, and no. There are numerous technically incorrect statements in this series of videos. For starters, Software RAID is run in every enterprise environment. NetApp is software RAID. Equallogic is software RAID, virtualized infrastructures run on software RAID. Synology, QNap, Netgear/ReadyNAS, they all run software RAID. Here's a secret most hardware RAID vendors don't want you to know, when a RAID controller chip fails, your only recovery is to take the disks and put them into an identical system. Ask someone who had a Drobo enclosure (which is software RAID) how they recovered their data, because they had to hurriedly purchase another enclosure and hope for the best.
Next, RAID 0 with hard drives has no purpose any more. The reason for it was dealing with speed issues with rotational hard drives. This has been solved with SSD drives, which as a single drive perform so much better than a large set of RAID 0 drives, ignoring the costs, cabling, and management. RAID 0 is not used with plater hard drives anymore. RAID 0 across SSDs may be common in specific use cases, but most users should be perfectly set with a couple of independent SSD drives.
RAID is not backup, RAID1/5/6/10/50/60 are all methods of allowing a drive to die from a hardware failure, and give you a recovery method automatically via a rebuild. Rebuilds are painfully slow, and will impact performance until completed. The larger the dataset, the longer it takes.
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