User manual

iXOS-JUKEMAN — an overview
iXOS-JUKEMAN 2.2 User Manual Pre.12/97 15
hardware devices
iXOS generic SCSI driver
iXOS file system server iXOS writer software
NFS iXOS file system for NT
NT network support
The server
The iXOS-JUKEMAN server controls jukeboxes, disk drives, and the disks
they contain. The server combines all disks in a single file system in which
each disk is a subdirectory of the root directory and the jukeboxes are
hidden.
UNIX clients access the server’s file systems via NFS. The server accepts
NFS requests and replies with the NFS protocol (version 2). Clients mount
the file system just like any other Network File System.
With Windows NT, iXOS-JUKEMAN includes a native file system that ap-
pears as a drive letter, and can be accessed and shared through the file
system file server. This guarantees that the same jukeboxes are sup-
ported across both the NFS and NT file system interfaces.
Because NT shares local native file systems across all installed protocols,
PCs can access the file system as easily as they access a network drive.
The same file system can simultaneously be accessed by UNIX clients via
NFS. iXOS-JUKEMAN supports the MacFile service, allowing Macintosh
clients to access the file system.
IXOS JUKEMAN optimizes jukebox performance caching, optimizing disk
movement, parallel access to all devices, advanced queuing, and “request
anticipation”. iXOS-JUKEMAN also recognizes hard disk images as disks
– allowing them to be used as a replacement for CD drives. With the built
in NTFS compression, single hard disks can replace large numbers of
CDs.
For very high performance demands, disks can be replicated across sev-
eral jukeboxes. When a disk is requested the server automatically
chooses the least loaded jukebox.
NFS
Windows NT
file system
optimized
access