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Ask the Expert- SD-WAN

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Beginner

Sh flash cisco 3750 stack

Hi

I'm about to upgrade a lot of 3750 stack's

But on my stack's running

12.2(25)SEB4

I can not see the flash  for all switches in the stack

f.ex.

SW-CPH#sh flash?
flash1:  flash:

SW-CPH#sh sw
                                               Current
Switch#  Role      Mac Address     Priority     State
--------------------------------------------------------
*1       Master    0015.c691.dc80     1         Ready
2       Slave     0015.faf3.aa00     1         Ready
3       Slave     0015.faf3.9d80     1         Ready


But in my stack running 

12.2(35)SE5

I can see all :

SW-WAW#sh fla?
flash1:  flash2:  flash3:  flash:

SW-WAW#sh sw
Switch/Stack Mac Address : 001c.b050.0d80
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
1       Member 001e.1482.e980     1      0       Ready
*2       Master 001c.b050.0d80     1      0       Ready
3       Member 001e.132c.6a00     1      0       Ready

My issue will be downloading the new ios to the flash in every switch,  when  I can't se them.

any suggestions on what to do ?  

I will try to reload one stack tonight to see if that helps, but my faith is weak

hoping for reply - thanks

Br

Tuva

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2 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

Sh flash cisco 3750 stack

Hi,

12.2(25)SEB4 is a deferred release and i guess that command will not work,

However you can try session into individual switches and issue show flash.

for example there are three switches in the stack. for checking the third switch's flash,

Issue the command "session 3" from the master switch

show flash:

Hope this helps

Cheers

Somu

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Hall of Fame Community Legend

Sh flash cisco 3750 stack

If any one of your 3750 has a flash size of 16mb, then the highest version of the IOS your stack can go is the 12.2(55)SE. 

8 REPLIES 8
Cisco Employee

Sh flash cisco 3750 stack

Hi,

12.2(25)SEB4 is a deferred release and i guess that command will not work,

However you can try session into individual switches and issue show flash.

for example there are three switches in the stack. for checking the third switch's flash,

Issue the command "session 3" from the master switch

show flash:

Hope this helps

Cheers

Somu

Rate helpful posts

Beginner

Sh flash cisco 3750 stack

Thanks Somu

than I can just download from there ! 

Have a nice day !

Hall of Fame Community Legend

Sh flash cisco 3750 stack

If any one of your 3750 has a flash size of 16mb, then the highest version of the IOS your stack can go is the 12.2(55)SE. 

Beginner

Sh flash cisco 3750 stack

Thanks - we would like to have them all  running on : 12.2(53)SE2

Beginner

Sh flash cisco 3750 stack

I need to ask one more question

I can see that I can't download any IOS from tftp when I'm logged in with the session command.

How should  I proceed to upgrade these switches (without splitting the stack, configure trunks and ip's)

Br

Tuva

Hall of Fame Community Legend

Sh flash cisco 3750 stack

Ok, let's presume you have four switches in a stack.  Then the command should be:

archive download-sw /destination 1 /destination 2 /destination 3 /destination 4 /overwrite tftp:///

Highlighted
Beginner

can we use 12.2(55)SE7  for

can we use 12.2(55)SE7  for the flash of 16 mb.

Hall of Fame Community Legend

can we use 12.2(55)SE7  for

can we use 12.2(55)SE7  for the flash of 16 mb.

Yes.  You can load 12.2(55)SE on a 3560 or 3750 with 16 mb flash.  I'd recommend you look into SE8 or SE9 as there have been some major improvements to the codes compared to SE7.

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