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Power your analytics with storage optimized for mass capacity

Activate backups and improve data security, efficiency, and compliance

Extract more value from legacy content with managed migration services

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Significantly reduce TCO for secure, scalable cloud storage

Data storage solutions with cloud flexibility and cost predictability

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Deploy cost effective storage and data workflow solutions at the edge

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Significantly reduce TCO for secure, scalable cloud storage

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Simplify backup, long-term retention, and disaster recovery

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Solving data challenges with innovative enterprise storage solutions

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Build cost-effective active archives

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Massive in-vehicle storage capacity and modular edge solutions

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Meet high-speed network demands with exabyte scalability

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Put More of Your Business Data to Work—From Edge to Cloud

Put More of Your Business Data to Work—From Edge to Cloud

Put More of Your Business Data to Work—From Edge to Cloud

Put More of Your Business Data to Work—From Edge to Cloud

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Apple System and OS Support for Disk Drives Beyond 2.2 TeraBytes (TB)

Discussion of and instructions for updating your computer to be able to use the entire capacity of your larger-than-2TB internal drive in MacOS.

Macintosh systems with OS X 10.6 (Snow Leopard) and OS X 10.5 (Leopard) support direct attached disk drives greater than 2.2TB in size using GPT (GUID Partition Table).

Macintosh Power Mac G5, MacPro and iMac systems with the above versions of OS X can support 3.5” disk drives greater than 2.2TB in non-RAID configurations.

Software RAID 0 (striped) and RAID 1 (mirrored) with OS X 10.6.6 should work.

Other related categories of storage with possible 2.2TB limitations:

OS X 10.4 (Tiger) appears to recognize disk drives larger than 2.2TB and has GPT support for additional drives. However, it is reported to be unable to setup or boot a partition larger than 2.2TB.
Apple Software RAID prior to OS X 10.6
Apple Bootcamp (including Windows 7 64-bit)
Apple RAID cards
Software based full disk encryption tools
SoftRAID (a third-party application)

Product support for disk drives greater than 2.2TB is rapidly evolving. Please contact your suppliers directly for the latest status and capacity support limitations of their products. If you find that any part of this information is out of date or lacking, please let us know so that we may correct it and better serve future readers.

Below, a sample screen shot from OS X 10.5 Disk Utility, with a Seagate 3TB drives as additional storage: