User manual ACER ALTOS R720

[. . . ] Acer Altos R720 Series User's Guide Copyright © 2006 Acer Incorporated All Rights Reserved. Acer Altos R720 Series User's Guide Changes may be made periodically to the information in this publication without obligation to notify any person of such revision or changes. Such changes will be incorporated in new editions of this manual or supplementary documents and publications. This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims the implied warranties of merchantability or fitness for a particular purpose. [. . . ] Slide it forward (B) and insert the mid-plane into the backplane connector (C). Connect the cables to the mid-plane board. 6 Observe the post-installation instructions described on page 36. 89 Removing and installing the SAS/SATA backplane board To remove the SAS/SATA backplane board: 1 2 3 4 5 Observe the ESD precautions and pre-installation instructions described on page 35. See "To remove the small air baffle" section on page 45. Make sure all hot-plug HDD carriers are removed from the drive bay. For instructions, see "To remove a HDD" section on page 48. Disconnect all cables attached to the backplane board. See previous section. Note: To prevent damage to your system, make sure to remove the mid-plane board first before attempting to remove the backplane board. 6 Hold the backplane board by its edges, then lift it from the chassis. 7 8 Store the backplane board in an antistatic protective wrapper. Observe the post-installation instructions described on page 36. 90 3 System upgrade To install the SAS/SATA backplane board: 1 2 3 4 Observe the ESD precautions and pre-installation instructions described on page 35. See "To remove the small air baffle" section on page 45. Make sure all hot-plug HDD carriers are removed from the drive bay. For instructions, see "To remove a HDD" section on page 48. Hold the backplane board only by the edges. Do not push or pull on any components on the backplane. Set the backplane in place at the front of the server system, with the sides of the board resting in the guides at the left and right sides of the server unit. Slide the backplane board into the server system guides at the left and right sides of the server system until the pins at the left and right sides of the backplane bracket are fully inserted into the matching holes in the server system. 5 6 Observe the post-installation instructions described on page 36. 91 Configuring the integrated SAS hardware RAID components The system supports hardware RAID through the SAS mid-plane and backplane board. The server platform supports RAID 0, 1, 5, 10, and 50 levels. Functionality for hardware RAID is enabled by using the following components: · · RAID activation key RAID cache There is also an option to install the RAID BBU. If power to the storage I/O processor drops below specifications, the RAID BBU maintains the contents of the DIMM by keeping the DIMM in self-refresh mode until power is restored. After power is restored, data can be safely written to drives, maintaining the integrity of the disk array. Removing and installing the RAID activation key To remove the RAID activation key: 1 2 3 Observe the ESD precautions and pre-installation instructions described on page 35. See "To remove the small air baffle" section on page 45. Insert the tip of a small flat-bladed screwdriver under the plastic tab on the retainer holding the activation key to the SAS midplane board. Gently push down to detach the activation key. 4 92 5 6 Store the activation key in an anti-static bag. 3 System upgrade Observe the post-installation instructions described on page 36. To install the RAID activation key: 1 2 3 Observe the ESD precautions and pre-installation instructions described on page 35. [. . . ] As you slide the system in and out of the rack, the CMA collapses and extends, keeping the cables untangled and attached to the system. (1) Insert the smaller CMA extension into the rear of the left inner rail (A1). (2) Insert the larger CMA extension into the rear of left mounting rail (A2). (3) Insert the CMA extension connector into the rear of the right mounting rail (B1). [. . . ]