Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Get up to 16x more storage and 2x the speeds of the original drive
128GB Memory in iMac 5K

Up to 128GB for 2019 iMac 5K!
Up to 64GB for 2015/2017 iMac 5K

Save nearly 50% over Apple pricing

Using High Capacity Drives in a RAID-0 Stripe Volume

Last updated 2015-11-11 - Send Feedback
Related: backup, hard drive, HGST, RAID, RAID-0, storage

Get HGST 8TB Ultrastar He8 Hard Drive at OWC.
Also utilized in the 32TB OWC Thunderbay 4 RAID-5 edition.

See the topology overview which discusses general considerations in using four or five or more large hard drives.

Questions? One-on-one consulting is available with Lloyd.

Example: one RAID-0 striped volume

Finder Info for 32 TB / 29.1 TiB RAID-0 stripe volume,
using 4 HGST Ultrastar He8 8TB hard drives

This example could be extended to any number of drives for increased performance which scales linearly to at least 5 drives. However, with a RAID-0 stripe volume, failure of any drive kills the entire volume; there is no fault tolerance.

The use of RAID-0 makes sense only for the highest performance demands. Yet in most cases the smart move for high performance is instead to use a large and very fast SSD. Exceptions include cases where very high capacity with high performance is required, such as with processing uncompressed 4K video.

In some cases, a striped RAID-0 may make sense as a small volume for special purposes; the remainder of the drive capacity can be used for a RAID-4/5 or single drives, etc.

When a striped RAID is used, nearline (always attached) backup as well as offsite backups are essential unless the contents are dispensable (e.g., temporary work files).

Given the risks of failure in a RAID-0, most of the performance of a 4-drive RAID-0 can be achieved using 5 drives in a RAID-4/RAID-5. For most users this makes a lot of sense and greatly blunts the risk of failure.

TIP: use diglloydTools IntegrityChecker to verify backup integrity.

SoftRAID view of a 32 TB / 29.1 TiB RAID-0 stripe volume, using 4 HGST Ultrastar He8 8TB hard drives

Save the tax, we pay you back, instantly!
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 16 hours unless noted. Certain deals may last longer.
$2797 SAVE $600 = 17.0% $246 FREE ITEMS Nikon Z 7 Mirrorless in Cameras: Mirrorless
$2798 SAVE $400 = 12.0% Sony a7R III Mirrorless in Cameras: Mirrorless
$3498 SAVE $1000 = 22.0% Sony a9 Mirrorless in Cameras: Mirrorless
$898 SAVE $100 = 10.0% $161 FREE ITEMS Sony DSC-RX100 VA in Cameras: Point and Shoot
$1879 SAVE $1071 = 36.0% ZEISS 15mm f/2.8 Distagon T* ZE in Lenses: DSLR

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__