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OWC Thunderbay Mini

The Thunderbay 4 Mini RAID-5 edition is available with SSDs in capacities from 1TB to 40TB. MPG strong recommends the RAID edition.

Thunderbay 4 Mini configurations (non RAID) are also available, as well as hard drive configurations are also available.

OWC sells and supports a RAID-5 edition of the Thunderbay Mini as a complete software/hardware solution; this is the OWC Thunderbay 4 Mini RAID-5 edition.

OWC by default ships this configuration as a RAID-4 yielding 30TB of usable capacity from the 40TB of storage (1/4 of the storage is used for parity data needed for fault tolerance). RAID-4 and RAID-5 have the same behavioral profile, the difference being a dedicated parity disk versus distributed parity; usually the performance is the same.

This page walks through the setup process with the supplied SoftRAID software, should the user with to change the setup to something else. Partitioning with RAID (all flavors) is also possible, and very easy to do.

OWC Easy SSD Upgrade Guide
MacBook Pro and MacBook Air
iMac, Mac Pro, MacMini, more!

With uninitialized drives

If the drives are re-initialized to factory state, the SoftRAID window will look as shown below, with four unformatted SSDs containing no file system.

SoftRAID showing four brand-new uninitialized SSDs in OWC Thunderbay 4 Mini

Creating a RAID volume

After Initializing the drives (Disk => Initialize…), a RAID volume can be created (Volume => New…). Choose the type of volume desired and the volume size and click Create—job done. If multiple volumes are desired (partitioning), simply specify the desired sizes and repeat the process.

SoftRAID dialog creating a 40TB RAID-0 stripe from 4 X 10TB SSD


Shown below is the SoftRAID display of one 30TB RAID-5 volume consisting of the four 10TB SSDs.

SoftRAID showing a 30TB RAID-5 SSD in OWC Thunderbay 4 Mini

Examples of RAID-0 stripe (40TB) and RAID-5 (30TB) from the same four drives.

40TB RAID-0 SSD stripe and 30TB RAID-5 SSD in OWC Thunderbay 4 Mini


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