我最少 HD 留一份DVD back up 做雙碟兩份 .
Mac 最簡單加。 Time Capsule - 1 TB
否則Mac pro :
http://store.apple.com/hk/configure/MA970ZP/A?mco=NzUzNTM3引用:
RAID Card
Enhance storage performance and data protection by configuring your system with the Mac Pro RAID Card and multiple hard drives. Please note: The Mac Pro RAID Card is required when selecting SAS drives.
Learn more
The Mac Pro RAID Card brings data protection with improved performance to your Mac Pro system — up to 250MB/s of sequential read performance in RAID 5. Ideal for video and creative professionals with demanding storage needs, as well as for tower server applications, this hardware RAID option supports RAID levels 0, 1, 5, 0+1, and Enhanced JBOD. It has 256MB of cache and an integrated 72-hour battery for protecting the RAID cache. The card occupies the top PCI Express slot (slot 4) and connects to the four internal drive bays.
To enable your Mac Pro for hardware RAID, select the Mac Pro RAID Card option and two or more hard drives in bays 1 through 4. Each RAID level has minimum requirements for the number of hard drives:
RAID Level Drive Requirements Benefit
Enhanced JBOD One to four drives A non-RAID configuration with the ability to migrate to a RAID set at any time
RAID 0 (striping) Two to four hard drives Maximum performance and capacity for the most demanding I/O requirements
RAID 1 (mirroring) Two hard drives Maximum protection for critical data
RAID 5 Three or four hard drives Data protection, up to 250MB/s of sequential read performance, and efficient capacity utilization
RAID 0+1 Four hard drives A mirror of striped drive pairs providing performance and data protection
The Mac Pro RAID Card supports the creation of multiple RAID sets in a system and multiple volumes per RAID set. For optimal disk utilization in a RAID set, all hard drives should be the same size. Your Mac Pro system ships with each hard drive individually configured in the Enhanced JBOD level with Mac OS X installed on the drive in bay 1. Using Apple's RAID Utility software, you can migrate the drives into a RAID set without reinstalling Mac OS X or reformatting the drives, or you can customize your RAID volumes to meet your exact requirements.
The Mac Pro RAID card occupies one of the available PCI Express expansion slots.
Please note:
The Mac Pro RAID Card occupies one of the available PCI Express expansion slots.
The Mac Pro RAID Card is required when selecting 15,000-rpm SAS drives.
The Mac Pro RAID Card supports Mac OS X only.
