LSI 3ware SAS 9750-8i User's Guide download pdf (Page 198)

Maintaining Your Controller

186 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.0

8 Run mkinitrd.

9 If you are using lilo, use lilo to update to the boot loader.

You should see a printout of kernels that are able to boot on this system

after running lilo.

10 Reboot, if booted from the 3ware controller. Otherwise, continue with

step 11.

The driver is now updated.

11 Stop the current driver module, if loaded:

rmmod 3w-sas

12 Load the new driver module:

modprobe 3w-sas

If the new driver fails to load properly, confirm that you used correct driver. If

your kernel or SUSE version is not supported, you will need to compile your

own driver. For more information, search the LSI Knowledge Base for

keyword 14546 (use the Advanced Search) at

https://selfservice.lsi.com/service/main.jsp.

Viewing Battery Information

The Battery Backup Unit (BBU) is an add-on card that can be attached to

3ware 9750 RAID controllers to supply power from a battery pack in the

event of a system power loss. This allows the controller to use write-caching

for optimal performance and to preserve data in the event of a system power

failure. When fully charged, the battery preserves the contents of the cache

memory for up to 72 hours. When power is restored, the cached write data is

written to the disks.

You can see information about a battery backup unit attached to your

controller in both 3DM 2 and 3BM.

Note: Other modules may be listed before or after 3w-sas depending

on the installation. You may see entries likes reiserfs, ext3 or

scsi_mod. Leave these entries alone, if present, as the system may

need them to boot properly.

Note: When the BBU status is not “Ready,” write caching is automatically disabled

on all units attached to the controller

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LSI 3ware SAS 9750-8i User's Guide Page 198

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