This section
describes how to control assisted copy and minimerge operations on
an HSC controller. It is not possible to control these operations
on an HSJ controller.
To disable both the merge and copy performance
assists on the HSC controller, follow these steps on each HSC controller
for which you want to disable the assists:
Press Ctrl/C to get to
the HSC prompt.
When the HSC> prompt appears
on the terminal screen, enter the following commands:
HSC>RUN SETSHO
SETSHO>SET SERVER DISK/NOHOST_BASED_SHADOWING
SETSHO-I Your settings require an IMMEDIATE reboot on exit.
SETSHO>EXIT
SETSHO-Q Rebooting HSC. Press RETURN to continue, CTRL/Y to abort: |
After you issue these commands, the HSC controller
automatically reboots:
To re-enable the assists, follow the same procedure
on your HSC controller, but use the /HOST_BASED_SHADOWING qualifier
on the SET SERVER DISK command.
Use the HSC command SHOW ALL to see whether the
assists are enabled or disabled. The following example shows a portion
of the SHOW ALL display that indicates the shadowing assists status:
HSC>SHOW ALL
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5-Jun-1997 16:42:51.40 Boot: 21-Feb-1997 13:07:19.47 Up: 2490:26
Version: V860 System ID: %X000011708247 Name: HSJNOT
Front Panel: Secure HSC Type: HSC90
.
.
.
Disk Server Options:
Disk Caching: Disabled
Host Based Shadowing Assists: Enabled
Variant Protocol: Enabled
Disk Drive Controller Timeout: 2 seconds
Maximum Sectors per Track: 74 sectors
Disk Copy Data connection limit: 4 Active:0
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