Sun Microsystems StorEdge T3+, Service Manual

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3-8 Sun StorEdge T3 and T3+ Array Field Service Manual • September 2001
7. Data channel as described in Section 3.9, “Identifying Data Channel Failures” on
page 3-23.
3.4 Verifying the Data Host Connection
To verify the physical connection between the host and the array, use a utility such
as the
format
command in the Solaris environment. The output of the command
confirms whether a volume is on the array. For example:
● On the application host, enter
format
at the supervisor prompt.
In this example, device number 2 is a volume on the array, as identified by the
SUN-T3-0100
label.
3.5 StorTools Connectivity Tests
Use StorTools to verify the physical connection between the host and the array and
to determine the primary and alternate paths.
3.5.1 Primary Path Verification by the Host
To determine a Sun StorEdge T3 array’s primary and alternate paths, from the host
console, do the following:
# format
Searching for disks...done
c1t1d0: configured with capacity of 133.38GB
AVAILABLE DISK SELECTIONS:
0. c0t2d0 <drive type unknown>
/sbus@1f,0/SUNW,fas@e,8800000/sd@2,0
1. c0t3d0 <SUN2.1G cyl 2733 alt 2 hd 19 sec 80>
/sbus@1f,0/SUNW,fas@e,8800000/sd@3,0
2. c1t1d0 <SUN-T3-0100 cyl 34145 alt 2 hd 64 sec 128>
/sbus@1f,0/SUNW,socal@1,0/sf@0,0/ssd@w50020f2300000121,0
Specify disk (enter its number):