Cisco Cisco Content Delivery Engine 220 Technical References
MegaRAID SAS Controller Replacement Procedure
OL-27138-01
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-rw-r--r-- 1 root root 2544113 Jan 31 10:22 initrd-2.6.18-53.el5.cdstv.25x.r222.img
-rw-r--r-- 1 root root 2511703 Jan 31 10:20 initrd-2.6.18-53.el5.cdstv.25x.r222.img_bkup
-rw-r--r-- 1 root root 2511703 Jan 31 10:20 initrd-2.6.18-53.el5.cdstv.25x.r222.img_bkup
Verify the size and MD5 checksum of initrd<XX>.img
For example, for initrd-2.6.18-53.el5.cdstv.2.5.2.b222.img for 2.5.2 above, size is
is 2544113 bytes. And its MD5 checksum is 459d14e40b0967fa0db5ee1ee24270cf
# md5sum initrd-2.6.18-53.el5.cdstv.25x.r222.img
459d14e40b0967fa0db5ee1ee24270cf initrd-2.6.18-53.el5.cdstv.25x.r222.img
3. Physically Replacing the MegaRAID controller
1. SSH as root to the device that is targeted for an upgrade. Stop database by issuing the
following commands:
a. as root, issue "
db_shutdown
"
a. make sure avsdb process shuts down, "
pgrep avsdb
"
and “
netstat
–an |grep
9999
” should return nothing
2. Inspect the CGW chassis and ensure all connecting cables are labeled, if fibers are in
use for streaming, ensure that TX/RX are marked by color or label. If any cables/fibers
are missing label, use temporary label to show near end interface.
are missing label, use temporary label to show near end interface.
3. Power off the server, disconnect the power cords from the power supplies, remove the
power supplies and disconnect all the cables on the rear panel.
4. Place the chassis on a workstation and remove the top cover.
5. Note: Make sure you have an ESD strap on and you are properly grounded before doing
the following steps:
6. Unscrew the bracket of card at slots 3. Disconnect the SATA cables attached to the card
which connect to the internally mounted drives.
7. Pull out card mentioned above.
8. The new MegaRAID controller comes with the following two parts (see Figure 24)
a. The card itself (LSI MegaRAID 9261-8i)
b. The BBU for the card
9. Before installing the new MegaRAID controller, make sure that the BBU is installed onto
the card properly. Figure 24 (below) shows the new MegaRAID card with the BBU
installed. If the BBU is not installed onto the card, but instead provided in the box, follow
the instructions in Appendix B to install it.
installed. If the BBU is not installed onto the card, but instead provided in the box, follow
the instructions in Appendix B to install it.