Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Upgrade the memory of your 2018 Mac mini up to 64GB
GET THE BEST DEALS
Top deals pages updated daily for Sony, Nikon, Canon, Apple, many more!
Instant rebates, Black Friday deals, etc
OWC Thunderbolt 3 Dock
Must-have expansion for iMac/MacBook Pro/Mac mini
Thunderbolt 3 • USB 3 • USB-C • Gigabit Ethernet • Dual Thunderbolt 3 Ports
4K Support • Mini Display Port • Analog sound in/out • Optical sound out
Works on any Mac with Thunderbolt 3


Using High Capacity Drives in a RAID-0 Stripe Volume

Last updated 2015-11-11 - Send Feedback
Related: hard drive, RAID, 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
Cycling
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 23 hours unless noted. Certain deals may last longer.
$797 SAVE $350 = 30.0% $59 FREE ITEMS Nikon D5600 DSLR with 18-55mm and 70-300mm Lenses in Cameras: DSLR
$1099 SAVE $300 = 21.0% $249 FREE ITEMS Sigma 70-200mm f/2.8 EX DG APO OS HSM in Lenses: DSLR
$3498 SAVE $1000 = 22.0% Sony a9 Mirrorless in Cameras: Mirrorless

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2008-2017 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__