Installation Guide

11-4
Cisco x90 Series Content Security Appliances Installation and Maintenance Guide
Chapter 11 Maintaining Cisco Content Security Appliances
Replacing Cisco Content Security Appliance Components
Replacing Hard Drives or Solid State Drives
This section includes the following information:
• Drive Population Guidelines, page 11-4
• Drive Replacement Procedure, page 11-5
Drive Population Guidelines
The 90-Series Cisco Content Security Appliances are available in the following models:
• Cisco C190, M190, S190, and C390 —Have two small form-factor (SFF) drives.
• Cisco S390 and C690 —Have four small form-factor (SFF) drives.
• Cisco M390 —Has six small form-factor (SFF) drives.
• Cisco M390X, C690X, C690-1G, and C690-10G —Have eight small form-factor (SFF) drives.
• Cisco M690 —Has ten small form-factor (SFF) drives.
• Cisco M690X, M690-1G, M690-10G, S690X, S690-1G, and S690-10G—Have sixteen small
form-factor (SFF) drives.
Note You cannot change the backplane type after-factory. To change a front panel/backplane configuration, a
chassis replacement is required.
The drive-bay numbering for all versions is shown in Figure 11-1 and Figure 11-2.
Figure 11-1 Drive Numbering for 1RU Appliances
Figure 11-2 Drive Numbering for 2RU Appliances
Observe these drive population guidelines for optimal performance:
• When populating drives, add drives in the lowest numbered bays first.
• Keep an empty drive blanking tray in any unused bays to ensure optimal airflow and cooling.