User`s guide
IST-033576 D2.1.4
root 25731 25730 0 17:05 pts/2 00:00:00 bash
root 25748 25731 0 17:05 pts/2 00:00:00 ./xos_amsd -d
root 25906 14038 0 17:29 pts/7 00:00:00 sshd-xos: xosuse
yjegou 25907 13968 0 17:29 pts/8 00:00:00 ssh-xos paraski3
55285 25914 25906 0 17:29 pts/5 00:00:00 -bash
55285 25924 25914 0 17:35 pts/5 00:00:00 ps -aef
root 25925 25748 0 17:35 pts/2 00:00:00 ./xos_amsd -d
/C=FR/ST=Bretagne/L=Rennes/O=INRIA/OU=IRISA/CN=Yvon Jegou/emailA
ddress=Yvon.Jegou-at-irisa.fr/CN=28216/CN=10098738018704381327:
pwd
/tmp
/C=FR/ST=Bretagne/L=Rennes/O=INRIA/OU=IRISA/CN=Yvon Jegou/emailA
ddress=Yvon.Jegou-at-irisa.fr/CN=28216/CN=10098738018704381327@p
aradeux101:~$ touch myfile
/C=FR/ST=Bretagne/L=Rennes/O=INRIA/OU=IRISA/CN=Yvon Jegou/emailA
ddress=Yvon.Jegou-at-irisa.fr/CN=28216/CN=10098738018704381327:
ls -al
total 20
drwxrwxrwt 4 root root 4096 Nov 6 11:08 .
drwxr-xr-x 20 root root 4096 Nov 6 10:36 ..
drwxrwxrwt 2 root root 4096 Nov 6 10:36 .ICE-unix
drwxrwxrwt 2 root root 4096 Nov 6 10:36 .X11-unix
-rw------- 1 53557 xos_admin 46 Nov 6 11:01 .bash_history
-rw-r--r-- 1 /C=FR/ST=Bretagne/L=Rennes/O=INRIA/OU=IRISA/CN=Yvo
n Jegou/emailAddress=Yvon.Jegou-at-irisa.fr/CN=28216/CN=10098738
018704381327 xos_admin 0 Nov 12 17:13 myfile
/C=FR/ST=Bretagne/L=Rennes/O=INRIA/OU=IRISA/CN=Yvon Jegou/emailA
ddress=Yvon.Jegou-at-irisa.fr/CN=28216/CN=10098738018704381327:
exit
logout
Connection to paraski30 closed.
yjegou:
4 Conclusion and Future Work
The current prototype of checkpoint/restart offers low level functionalities for
checkpoint/restart mechanisms in Linux-XOS. The API described here is directly
inherited from BLCR and will evolve as presented in [2] in order to present a
POSIX-like flavour.
Current prototype of node-level VO support has leveraged existing Linux ex-
tensions such as PAM and NSS, to deal with local user account management for
XtreemOS–Integrated Project 30/49










