Sorry for the delay of the summary, I had unexpected surgery and
was out for a while. But now, I'm baaaack.
I asked the following questions:
-------------- Begin Original Post -----------------------
We are just about to upgrade from many 3/60's and 3/80's to IPC's.
We have chosen to make them all dataless clients.
Will it be necessary to include a line in /etc/exports for all these
machines to boot ?
/usr -root=ipc1:ipc2:ipc3 ... to machine n.
/cdrom -ro
/export/home
/export/home1
/var/spool/mail
/export/exec/sun3.sunos.4.1.1
/export/exec/sun4.sunos.4.1.1 -root=ipc1:ipc2:ipc3 ... ditto
/export/exec/kvm/sun3x.sunos.4.1.1
/export/exec/kvm/sun4c.sunos.4.1.1 -root=ipc1:ipc2:ipc3 ... ditto
I tried the entries with just:
/usr
/export/exec/sun4.sunos.4.1.1
/export/exec/kvm/sun4c.sunos.4.1.1
but the machines wouldn't boot. So the questions are really:
1) Why do I need to specifically state root= ...
2) Will I need an entry for every machine or can I set up a netgroup ?
3) Number of max entries on a line ?
4) Estimated max number of IPC's served dataless from 470 or 490 ?
All machines are running 4.1.1b
-------------- End Original Post -----------------------
The answers:
The general consensus is that I was confused during my initial studies and mixed
data from diskless and dataless clients. So, that said ......
1) Not necessary
2) Use netgroups, it's fun and easy ;-)
3) This varied from 255 bytes to 4k bytes, shouldn't be a problem.
4) This also varied from 20 to 40 for a 4/490. I am serving 45 with
no significant problems. Since all users were upgraded from
diskless 3/60's and 3/80's to dataless 4/40's, everyone sees a
speed improvement.
Here is an example of /etc/exports using netgroup:
#--------------------
#carrier:/etc/exports
#--------------------
#
/home/carrier -access=AllHosts
#
# Must export /usr *first*.
#
/usr -access=AllHosts
/export/exec/kvm/sun4c.sunos.4.1.1 -access=CarSparcClients
#
#/usr/share -access=CarSparcClients
/var/spool/mail -access=CarSparcClients
#
# Clients with NFS swap
/export/root/america -access=america,root=america
/export/swap/america -access=america,root=america
/export/root/jfk -access=jfk,root=jfk
/export/swap/jfk -access=jfk,root=jfk
#
# Clients with local swap
/export/root/hancock -access=hancock,root=hancock
/export/root/intrepid -access=intrepid,root=intrepid
#--------------------
#<NISserver's>:/etc/netgroup
#--------------------
#
CarSparcClients (nimitz,,) \
(intrepid,,) \
(america,,) \
(jfk,,) \
(midway,,) \
(vinson,,) \
(wasp,,) \
(langley,,) \
(yorktown,,) \
(hancock,,) \
(lincoln,,) \
(enterprise,,) \
(ranger,,)
CarClients CarSparcClients
Servers (carrier,,) \
(aircraft,,)
AllHosts CarClients Servers
Thanks to:
------------------------------------------------------
milt@PE-Nelson.COM (Milt Ratcliff)
joerg @ wp-470-1.fl.bs.dlr.de (Joerg Theuerkauf)
geertj@ica.philips.nl (Geert Jan de Groot)
Tony.sbd-e@RX.Xerox.COM (Tony Christie)
pomeranz@dccs.upenn.edu (Hal Pomeranz)
frankk@cwi.nl (Frank Kuiper)
exudnw@exu.ericsson.se (David Williams)
mikem@juliet.ll.mit.edu (Michael Maciolek)
kevinmac@ll.mit.edu (Kevin McElearney)
mario@wdc.sps.mot.com (Mario Nigrovic)
------------------------------------------------------
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