Sun Microsystems 2500 manual Next Steps

Simplex cabling is the same as the cabling on a single channel of an ordinary array, such as that shown on the A-side in FIGURE 2-18. CRU removal and replacement procedures in a simplex configuration are the same as those for a duplex configuration with a failed controller (with the exception of the service procedures targeted at the failed controller). These procedures are available in Service Advisor. Maintenance procedures such as firmware updates or servicing of the controller or expansion modules will cause loss of access to the array during the performing of the procedure, since there is no backup channel.

Performance and default behavior are the same as a duplex configuration with a failed or missing controller. Write cache is by nature in write-through mode because there is no cache mirroring possible.

Next Steps

Now you are ready to connect the management and data hosts, as described in Chapter 3.

48 Sun StorageTek 2500 Series Array Hardware Installation Guide • March 2007