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 I/O (Disk on which control domain 0 is installed)  
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- 
SCSI,  iSCSI, Serial ATA (SATA) or Serial Attached SCSI (SAS). 
 
- 
Fibre channel to a JBOD (term for just a bunch of disks or
drives). 
 
 
 
Note – 
Legacy ATA (IDE) drives are acceptable for devices such as CD-ROM.
These drives are not recommended as the root or image drive on which control
domain 0 is installed, for performance reasons. 
 
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