@chapter(Backup)

Backing up personal files on a VSII

Before this document can be written with any kind of veracity,
I need to know a couple of things:

Will our customers store their files on the hard disks,
or in rvd lockers?
Since the answer appears to be the former, and not the latter,
I will need to tell them how to work on a VSII without
having adequate space for their files.

Do our customers have access to time-sharing accounts,
and if so, do they have sufficient quota to:

a)  Store files that they cannot fit on the hard disk; and

b)  Backup files that they can fit on the hard disk.

Another thought that bothers me:
Alana assures me that each MicroVAX in the development
cluster will have multiple user accounts.
That restricts personal space on the workstation to an
absurd size.

How to get around this problem?
Users could keep personal files on diskette Unix file systems.
They can then mount their personal file system's when
they use the machine.  The problem is that they have to
log in as root to do so.
Note that a floppy file system can only hold about 300 kbytes.

If this becomes the mode for personal file storage,
users can use cp to backup floppy file systems to other
floppy file systems.

If users are storing their files on timesharing machines to
begin with,
they don't have to backup their files because Athenan already
performs this service for them.

If users store their files on rvd lockers,
backups can be made to floppy with tar, cpio, and dump.
You can even compress files on floppy to stuff more data onto the disk.