[rich82fox]

hi there

I currently have a Apple Powermac G5 Dual 1.8GZ

It has 150gb and 280gb hard drives

I need more space I'm running out

- so I want to ask - what's the largest size hard drive I can add? and what type of hard drive?

How many hard drives does the Powermac G5 take? (internal)

rich

[reader50]

All G5s take SATA drives. There are two internal bays. The optical drive is PATA, and if you replace the cable, it is possible to put a 3rd HD (PATA) on top of the optical drive.

The max drive size you can fully use is 2 TB. This is a limitation of the Apple Partition Map which G5s use to boot from. You can install a 3 TB drive and partition it with GUID. It will mount as a data drive after bootup, but will not boot.

[mduell]

You may run into addressing issues with drives larger than 2TB... I don't know that the PPC OS X versions ever got support for LBA >32-bit.

[reader50]

Should be fine for a data drive. RAID volumes have gone past 2 TB for some time now without issue.

[mduell]

Software or hardware RAID? Software RAID means the OS is still dealing with devices <2TB.