eServices is investigating the cause of problem which shut down the z3950 server on ALEPH just after 4.30pm yesterday afternoon.
A consequence of the shutdown was that from that time SFX was unable to check the Library Catalogue for holdings information – so SFX menus were reporting that no ISSNs or ISBNs were being matched against print catalogue records. Another consequence of the closure was that searches of the library catalogue from RefWorks were unavailable. (eSearch searches of the catalogue were unaffected.)
The server has now been restarted and both SFX and RefWorks services have been confirmed as connecting to ALEPH successfully.
eServices is now in discussion with both IS and Ex Libris to isolate the cause of this issue.