Chapter 3. IBM System Storage DS3500 Storage System planning tasks 37
Draft Document for Review March 28, 2011 12:24 pm 7914DS3KPlanning_090710.fm
Figure 3-4 DS3500 with optional added SAS host connections
3.2.3 Ethernet cable and connections
Each DS3500 RAID controller contains an Ethernet management port, which you can use for
out-of-band management. If you have a dual controller DS3500 subsystem, make sure the
management workstation can access the management port on each controller. If only one
controller is assessable by the management machine, the DS3500 Storage Manager will not
be able to manage the enclosure.
It is a best practice to not use your public LAN for DS3500 out-of-band management. Instead,
set up a dedicated LAN or VLAN just for management purposes. This will provide increased
security of your DS3500 storage system. If the DS3500 RAID controllers are on a public LAN,
a knowledgeable user could install the DS3500 Storage Manager on a separate workstation,
or use the CLI to run potentially destructive tasks. For an additional layer of security, we also
recommend that you enable password protection on the DS3500 storage system. Refer to
“Set Password” on page 210 for more details.
The DS3500 supports iSCSI SAN, which utilizes the standard Ethernet infrastructure, using
regular Ethernet cables on the host side. The simplest case is a direct connection to a single
host server. It is more typical to attach multiple host servers through an Ethernet switch. See
Figure 3-5 on page 38 for an example.
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