servers(5)servers(5)NAMEservers - map server names to numbers
DESCRIPTION
Each file server has a file, /vice/db/servers, which maps server names
to numbers. The server numbers are 8 bit numbers so a maximum of 256
servers can be supported. Once a server number has been assigned, it
may not be reused. You should not reassign a server a new id without
initializing the server.
The server numbers are used in too many places, probably the most
important is in the creation of volumes. The server creating a volume
uses its server number as the first byte of the four-byte volume iden‐
tification number in order to ensure uniqueness.
NOTE: Replicated volume numbers must also be unique, so we reserve part
of the range, 0-127 (0-7F hex), for this purpose. Real server numbers
must not be allocated from the other subrange, and vice-versa.
The format of the file is the full server name (e.g.
mahler.coda.cs.cmu.edu) followed by a tab and then the servers number.
Any line beginning with a "\#" is considered a comment and is ignored.
The following is an example servers file:
MAHLER.CODA.CS.CMU.EDU 201
GRIEG.CODA.CS.CMU.EDU 204
HAYDN.CODA.CS.CMU.EDU 205
WAGNER.CODA.CS.CMU.EDU 206
DEBUSSY.CODA.CS.CMU.EDU 212
SCARLATTI.CODA.CS.CMU.EDU 214
ROSSINI.CODA.CS.CMU.EDU 215
PUCCINI.CODA.CS.CMU.EDU 216
GERSHWIN.CODA.CS.CMU.EDU 218
SCHUMANN.CODA.CS.CMU.EDU 219
FILES
/vice/db/servers
BUGS
The server numbers and replicated volume prefixes are pulled from the
same number space. Separation is enforced only by convention.
This file and /vice/db/hosts should be combined.
SEE ALSO
vrdb (5), vsgdb (5), maxgroupid (5), hosts (5)
AUTHOR
Maria R. Ebling, 1990, Created
servers(5)
