Today I would be discussing on how to do a cluster switch firmware upgrade on Netapp.
The following protocols can be used for uploads or downloads: ◆ FTP ◆ TFTP ◆ SCP ◆ SFTP ◆ XMODEM . Downloaded code from netapp is validated with a CRC check and a version check to protect against the download of malicious code. I have limited myself to TFTP as it can be easily configured using the free tool from solarwinds
Login to the cluster switch with the login credentials.
login to privileged mode as below. where you will be prompted for password again.
(CN1610) >enable
Password:***********
Check for the current and backup images currently available on flash of the swtich as below.
(CN1610) #show bootvar
Image Descriptions
active :
backup :
Images currently available on Flash
——————————————————————–
unit active backup current-active next-active
——————————————————————–
1 1.1.0.7 1.1.0.1 1.1.0.7 1.1.0.7
As per the above example we have 1.1.0.7 in the active configuration and 1.1.0.1 in the backup configuration.
(CN1610) # show version
Switch: 1
System Description……………………….. NetApp CN1610, 1.1.0.7, Linux
2.6.21.7
Machine Type…………………………….. NetApp CN1610
Machine Model……………………………. CN1610
Serial Number……………………………. xxxxxxxxxxx
Burned In MAC Address…………………….. 00:xx:xx:xx:xx:xx
Software Version…………………………. 1.1.0.7
Operating System…………………………. Linux 2.6.21.7
Network Processing Device…………………. BCMxxxx
Part Number……………………………… 111-00333
We can check for the firmware version, part number and switch model using the above command.
(CN1610) # copy active backup
Copying active to backup
Copy operation successful
With the above command we are initiating a back of the current active firmware configuration.
The validation of the firmware copy can be checked by the earlier bootvar command as below.
(CN1610) #show bootvar
Image Descriptions
active :
backup :
Images currently available on Flash
——————————————————————–
unit active backup current-active next-active
——————————————————————–
1 1.1.0.7 1.1.0.7 1.1.0.7 1.1.0.7
We can see the backup is the same as active configuration on the switch.
Copying the firmware through TFTP: ( TFTP server which we are using here is 192.168.x.x)
Start the firmware copy to the switch with the command as below.( Here we also make it active)
(CN1610) #copy tftp://192.168.x.x/NetApp_CN1610_1.1.0.8.stk active
Mode……………………………………. TFTP
Set Server IP……………………………. 192.168.x.x
Path……………………………………. ./
Filename………………………………… NetApp_CN1610_1.1.0.8.stk
Data Type……………………………….. Code
Destination Filename……………………… active
During the transfer you will be prompted that the management access for the switch is blocked during the transfer. Give a yes to proceed further.
Management access will be blocked for the duration of the transfer
Are you sure you want to start? (y/n) y
TFTP Code transfer starting…
File transfer operation completed successfully.
Validate the file that’s copied as below.
(CN1610) #show bootvar
active :
backup :
Images currently available on Flash
——————————————————————–
unit active backup current-active next-active
——————————————————————–
1 1.1.0.8 1.1.0.7 1.1.0.7 1.1.0.8
We could see that current active firmware configuration is 1.1.0.7 and the next active is 1.1.0.8 ( which means this is available after the next reboot) .
1.1.0.7 Will be available as backup configuration and 1.1.0.8 is made active.
Reboot the cluster switch with the below command
(CN1610) #reload
The system has unsaved changes.
Would you like to save them now? (y/n) y
Validate the switch firmware post reboot and confirm the same using bootvar command as below.
(CN1610) #show bootvar
Image Descriptions
active :
backup :
Images currently available on Flash
——————————————————————–
unit active backup current-active next-active
——————————————————————–
1 1.1.0.8 1.1.0.7 1.1.0.8 1.1.0.8
With the above command we could see that the firmware is applied as 1.1.0.8 which is highlighted as active version and backup is 1.1.0.7 and this completes the upgrade. Let me know your thoughts.
SAN bits 