Section: AFS File Reference (5)
sysid - Lists file server machine interface addresses registered in VLDB
file records the network interface addresses that the FileServer (fileserver
process) registers in the Volume Location Database(VLDB) for the local file server machine.
Each time the File Server restarts, it builds a list of interfaces on thelocal machine by reading the /usr/afs/local/NetInfo file, if itexists. If the file does not exist, the File Server uses the list ofnetwork interfaces configured with the operating system. It then removesfrom the list any addresses that appear in the/usr/afs/local/NetRestrict file, if it exists. The File Server recordsthe resulting list in the binary-format sysid file and registers theinterfaces in the VLDB.
When the Cache Manager requests volume location information, the VolumeLocation (VL) Server provides all of the interfaces registered for eachserver machine that houses the volume. This enables the Cache Manager tomake use of multiple addresses when accessing AFS data stored on amultihomed file server machine.
file is unique to each file server machine, and must not becopied from one machine to another. If it is a common practice in the cellto copy the contents of the /usr/afs/local
directory from an existingfile server machine to a newly installed one, be sure to remove thesysid
file from the new machine before starting the fs
trio ofprocesses, which includes the fileserver
Some versions of AFS limit how many of a file server machine's interfaceaddresses that can be registered. Consult the IBM AFS Release Notes.
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