I have expirience in support of UNIX servers ( HP-UX, AIX ) such as HP SuperDome sx2000, IBM p590, HP bl890 connected with tape libraries (HP ESL, IBM TS3310) and disk arrays (HP XP24000, EMC, HP EVA) by SAN ( 2 Brocade DCX fabrics ) and with LAN ( Cisco 6506, etc). Some servers cooperated in clusters by ServiceGuard. Main responsibility - OS of servers, but in fact i worked with all of these devices. For example with disks by HORCM, with tapes by utilites of OS and Data Protector, LAN & SAN switches worked for 2 years. Wrote a lot of instructions about work with OS & LAN Switches.