HDS 2000-series AMS Storage Arrays (2)

Day 2 of the TCI1535 class.  Day 1 summary here.Web Tool - similar to managing the SVP on an enterprise box.  Plug laptop to the "LAN 0" or "Maintenance port" on controller of AMS, access via web browser to default IP address, and you're in.  Note this is the "other" ethernet port on the controller.  The "LAN 1" or "User port" is the one you hook into a switch so users/admins can access SNM2.  Richard Houston (instructor for this week and course developer) says FireFox works fine with web tool.  Two modes, normal and maintenance.  Normal is used to get summary information, maintenance mode to set system parameters, microcode updates, etc.Active/Active I/O Architecture - this is HUGE change/enhancement of 2000s over older systems.  Thunders and older AMS arrays did Active/Passive, where LUNs were "owned" by either CTL0 or CTL1.  The 2000s use a "cross-path" communication that's much improved.  User no longer assigns lun ownership, is a function of microcode.  LUNs no longer "ping-pong" back-and-forth, and controllers don't thrash like they used to when a path failed.  (I don't want to get more involved on this here, but it's essential that sales and pre-sales folks understand this enhancement/change completely.  This and the improved back-end speed of the SAS architecture are two things that totally change the competitive position of the AMS product line.)Installation - course walks through a summary of installation.  Go back to manuals for your specific array and work procedure through completely.  This is a good overview for the rest of us who will not likely do physical installs.SNM2 - First there was DAMP, then Storage Navigator Modular (SNM), now there's SNM2.  Uses JRE 1.6, which is different from SNM (and enterprise products as well).  Install procedure simple, run wizard.  SNM2 has a look-and-feel more like the Hitachi Management Suite products.  That's because it's a HBASE product.  (In other words, more web-like, clicky on links rather than java-like right-clicky).  Labs walk through basics, lun creation, host group creation and the map/mask process.