Connecting disk drives to sas raid controllers, Connecting directly to the controller – Adaptec SAS/SATA/SCSI RAID Controllers User Manual

Page 33

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Chapter 5: Installing the Controller and Disk Drives

33

6

Optional—Connect your RAID controller’s I2C connector (not available on all models) to
an I2C connector on an internal backplane or enclosure, using an I2C cable.

7

Prepare and install your internal disk drives, following the instructions for your type of
controller:

For SAS RAID controllers, see

page 33

.

For SATA RAID controllers, see

page 35

.

For SCSI RAID controllers, see

page 35

.

If you are not installing internal disk drives, close your computer cabinet, reattach the
power cord, then continue with

Connecting External Devices on page 35

.

Connecting Disk Drives to SAS RAID Controllers

You can connect SAS disk drives, SATA disk drives, or a combination of both to your SAS
RAID controller. There are no jumpers or switches to set before installation.

If you plan to build a bootable array using internal disk drives, ensure you install at least the
minimum number disk drives required to support the RAID level you want. See

page 26

for

more information.

Note:

Although you can connect both SAS and SATA disk drives to your SAS controller, Adaptec

recommends that you not combine SAS and SATA disk drives within the same array or logical
drive. See

page 63

for more information.

You have two connection options:

To connect directly to the controller, see the following section.

To connect to a backplane, see

page 34

.

Connecting Directly to the Controller

In a direct-attach connection, SAS or SATA disk drives are connected directly to a SAS card
with SAS cables.The number of direct-attached disk drives is limited to four per internal SAS
connector. (For more information about direct-attach connections, see

page 66

.)

1

Install your internal SAS or SATA disk drives, following the instructions in your system’s
documentation.

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