SD Card Redundancy on UCS C-Series

[Bikash Bhattarai]

Dear All,

We can have two SD cards on single UCS C-Series. How can we maintain redundancy in SD card ? 

Regards,

Bikash

[Walter Dey · Accepted solution]

Configuring the Flexible Flash Controller Properties

After you upgrade to the latest verison of CIMC or downgrade to a prior version, and reset the configuration, the server will access HV partition only.

Before You Begin

• You must log in with admin privileges to perform this task.

Procedure

Step 1	In the Navigation pane, click the Storage tab.
Step 2	On the Storage tab, click Cisco FlexFlash.
Step 3	In the Controller Info tab, click Configure Operational Profile.
Step 4	In the Operational Profile dialog box, update the following fields: Name Description Controller field The system-defined name of the selected Cisco Flexible Flash controller. This name cannot be changed. Virtual Drives Enabled field The virtual drives that can be made available to the server as a USB-style drive. A check box against single HV partition is displayed. Note    In the prior versions, four check boxes against each virtual drive are displayed. If you have created single partition and downgraded to prior version of CIMC, other virtual drives are displayed even though only HV is valid. RAID Primary Member field The slot in which the primary RAID member resides. RAID Secondary Role field The value must be secondary-active. I/O Read Error Threshold field The number of read errors that are permitted while accessing the Cisco Flexible Flash card. If the number of read errors exceeds this threshold on a card, the card is marked unhealthy. To specify a read error threshold, enter an integer between 1 and 255. To specify that the card should never be disabled regardless of the number of errors encountered, enter 0 (zero). I/O Write Error Threshold field The number of write errors that are permitted while accessing the Cisco Flexible Flash card. If the number of write errors exceeds this threshold on a card, the card is marked unhealthy. To specify a write error threshold, enter an integer between 1 and 255. To specify that the card should never be disabled regardless of the number of errors encountered, enter 0 (zero). Clear Errors check box If checked, the read/write errors are cleared when you click Save Changes.
Step 5	Click Save Changes.

[Bikash Bhattarai]

Hi Walter,

Thank you for your prompt response. Does it mean that we can configure RAID between two SD cards using Cisco Flexible Flash Controller. 

Regards,

Bikash

[Walter Dey]

Yes, Raid-1 !

[Bikash Bhattarai]

Hi Walter,

Could you please help me with related document link.

Regards,

Bikash

[Walter Dey]

Here you go

http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/hw/C220/install/C220/replace.html#79413

http://www.cisco.com/en/US/docs/unified_computing/ucs/c/sw/gui/config/guide/1.5/b_Cisco_UCS_C-series_GUI_Configuration_Guide.151_chapter_011.html#d66929e2110a1635