Hi, sorry for the late answer. Anyway, our figures aren't quite as impressive as the CERN ones ;-) Notice these are for DESY's Zeuthen site only, and that the Hamburg site is considerably larger. > o site size > - number of users administered Some 600, about 250 of them are typically active. > - number of hosts administered Some 400 linux systems. Most of them are desktops, compute nodes or servers (file/web/nis/ldap/....), but there are some more exotic setups like the system for reading out the radiation monitor data of the photon injector, using the same basic setup as the others. 75% are running SL now, the rest hopefully will soon. > o hetereogeneous hardware Inevitably. Anything from a 233 MHz PII to 8 GB dual Opteron 250 running 64-bit SL. Ia64 might become attractive next year. NB hardware support IMHO is *not* a good promotional argument for SL/RHEL. There's some pretty common hardware that's not supported although GPL'd drivers are available (3ware 9k on SL3, NICs on Intel desktop boards on both SL3&4). > o heterogeneous networks/compatibility with other > Unices/Windows/etc. We have Solaris and Windows around. Compatibility is getting worse, but also less and less important. > o Features deployed > - kerberos Yes, Heimdal Server (still running on Solaris). Clients have Heimdal and MIT libraries installed. > - afs Yes, a few dozen TB, most of them now hosted on linux servers. DB servers ares still running on Solaris. AFS is used for all Unix home directories. > - single-sign-on Only between linux and solaris (same krb5 realm). We have a DESY-wide user registry that pushes password changes to AD and krb5, but that's it. > - cluster/gfs Not yet. I'm afraid we'll need a parallel filesystem for the compute nodes in the future, but I'm not sure GFS would be the right choice. > - etc > > Would some of the major players (Cern, FermiLab, IfH Zeuthen) want to I'm flattered ;-) > present their usage of SL, which could be put at the Website? Answering this way does not mean I object to Troy's proposal of putting some information up on the SL site. Cheers, Stephan -- ---------------------------------------------------- | Stephan Wiesand | | | | | | DESY - DV - | phone +49 33762 7 7370 | | Platanenallee 6 | fax +49 33762 7 7216 | | 15738 Zeuthen | | | Germany | | ----------------------------------------------------