Yamaha A4000 Owner's Manual page 66

1. System Overview
Drives
The A5000/A4000 has a built-in floppy disk drive, and additional internal hard disk, ZIP, or similar
drives can be installed and connected via the SCSI and IDE connectors provided. External storage
devices such as hard disks, ZIP drives, CD-ROM drives, MO drives, etc., can be connected via the
sampler's built-in SCSI interface. Such drives are referred to as SCSI or IDE devices.
Disks
The term "disk" refers to the actual storage disk/medium used: floppy disk, ZIP disk, MO disk, etc.
New disks must be "formatted" by the A5000/A4000 before they can be used for data storage and
retrieval (page 177). Furthermore, hard disks, ZIP disks, and similar media can be "partitioned" to
function as up to 8 individual disks.
Volumes
The A5000/A4000 stores all main-memory data into a volume on the target disk (or disk partition).
The volume stores an entire set of main-memory data.
A floppy disk can store a single volume only. The A5000/A4000 automatically creates this volume
(named "FD VOLUME") when you format the disk.
If you are using a SCSI disk, then you are free to create multiple volumes, so that you can store a dif-
ferent set of data onto each. The following illustration shows the relationship between disks and vol-
umes.
Floppy Disk
Volume
("FD VOLUME")
The point to remember here is that each disk volume corresponds exactly to a full set of main-memory
data. As the next illustration shows, the A5000/A4000 saves all main-memory data into a single vol-
ume. When you reload the volume, you restore the main memory to its exact state at the time of the
data save.
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Chapter 3 The A5000/A4000 System & Features
Hard Disk
Disk 1
Volume
(Partition 1)
Volume Volume
Volume
Volume
Volume Volume
Volume Volume
• A5000/A4000
Partitioned Hard Disk
Disk 2 Disk 3
(Partition 2) (Partition 3)
Volume Volume
Volume Volume
Volume Volume
Volume Volume