Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Capacities up to 56TB and speeds up to 1527MB/s
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$849 $489
SAVE $360

$950 $380
SAVE $570

$2799 $2499
SAVE $300

$1499 $899
SAVE $600

$799 $639
SAVE $160

$1180 $1050
SAVE $130

$150 $90
SAVE $60

$2399 $2159
SAVE $240

$1999 $1799
SAVE $200

$1099 $899
SAVE $200

$259 $209
SAVE $50

$1199 $1079
SAVE $120

$599 $199
SAVE $400

$819 $649
SAVE $170

$348 $298
SAVE $50

$2799 $2149
SAVE $650

$750 $450
SAVE $300

$299 $169
SAVE $130

$1099 $899
SAVE $200

$280 $220
SAVE $60

$1299 $1169
SAVE $130

$250 $250
SAVE $0

$998 $498
SAVE $500

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

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__