Sun Microsystems StorEdge 3000 Series, Инструкция по установке, эксплуатации и обслуживанию

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5-6 Sun StorEdge 3000 Family Installation, Operation, and Service Manual • March 2004
5.2.2 Write-Back and Write-Through Cache Options
Unfinished writes are cached in memory in write-back mode. If power to the array is
discontinued, data stored in the cache memory is not lost. Battery modules can
support cache memory for 72 hours.
Write cache is not automatically disabled when the battery is offline due to battery
failure or a disconnected battery. You can enable or disable the write-back cache
capabilities of the RAID controller. To ensure data integrity, you can choose to
disable Write Back cache option and switch to the Write Through cache option
through the firmware application by choosing “view and edit Configuration
parameters” and then choosing “Caching Parameters.”
5.3 Software Management Tools
You can manage your array through an out-of-band or in-band connection.
5.3.1 Out-of-Band Connection
■
With the out-of-band serial port connection, you can use a Solaris
tip
session or
a Microsoft Windows terminal emulation program to access the firmware
application. For details, see
“Setting Up the Serial Port Connection” on page F-1 .
■
With the out-of-band Ethernet port connection, you can use the
telnet
command
to access the firmware application. For details, see “Setting an IP Address” on
page 4-14 .
Caution –
If you assign an IP address to an array to manage it out-of-band, for
security reasons it is advisable to put the IP address on a private network rather than
on a publicly routable network.
■
With in-band host connections, you can use Sun StorEdge Configuration Service
software or the command-line interface (CLI). Refer to the
Sun StorEdge 3000
Family Configuration Service User’s Guide for in-band setup procedures and refer to
the Sun StorEdge 3000 3000 Family Software Installation Guide for CLI installation
and usage.