Maintaining A Caching Services Module; Maintaining The Batteries On The Caching Services Module - Cisco AJ732A - MDS 9134 Fabric Switch Installation Manual

Maintaining a Caching Services Module

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Note
e.
Maintaining a Caching Services Module
Caution Maintenance must be performed only by qualified service personnel.
Note A minimum of two CSMs in each fabric are required for redundancy and data backup.
This section provides the following information:
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Maintaining the Batteries on the Caching Services Module

The CSM batteries last approximately three years. The following message displays in the system log
when a battery fails:
Dec 5 17:14:36 sw-90.21% SVC_BATTERY-SLOT8-4-BATTERY_CAPACITY_LOW:
Battery capacity is below the required threshold.
If this message is displayed, contact your support provider for assistance. If a battery fails, the CSM must
be replaced. The other CSMs in the fabric contain the same data, and they continue providing caching
services during the replacement period.
The CSM batteries are shipped fully charged and should be handled accordingly.
Caution
Do not touch or bridge the metal contacts on the battery. Unintentional discharge of the batteries can
Warning
cause serious burns. Statement 341
Ultimate disposal of this product should be handled according to all national laws and regulations.
Warning
Statement 1040
The batteries are automatically charged on a periodic basis with an SMBus-compliant Level III smart
charger located on the CSM. The smart charger measures the charge and recharges the battery to full if
it is less than 90 percent of capacity.
Cisco MDS 9500 Series Hardware Installation Guide
2-50
Ensure the ejector levers are completely closed before tightening the captive screws. Failure to
completely seat the module in the backplane connector can result in error messages.
Tighten the two captive screws on the module to 8 in-lb.
Maintaining the Batteries on the Caching Services Module, page 2-50
Maintaining the Disk Drives on the Caching Services Module, page 2-51
Chapter 2 Installing the Cisco MDS 9500 Series
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