Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Single flash for switches in stack

Hi,

Is it possible to use a single flash for all the switches in stack?

In one of my locations, I found four switches in stack. When I try to check the IOS for all the switches in stack, except in master, all other are not showing any output for sh flash:

If the master switch is down, how the other switches will run!!!

Here is the output of sh ver:

Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(25)SEB4, RELE

SE SOFTWARE (fc1)

Copyright (c) 1986-2005 by Cisco Systems, Inc.

Compiled Tue 30-Aug-05 15:47 by yenanh

ROM: Bootstrap program is C3750 boot loader

BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(18)SE1, RELEASE SOFTWAR

(fc2)

XYZ uptime is 1 year, 13 weeks, 3 days, 19 hours, 18 minutes

System returned to ROM by power-on

System restarted at 16:38:59 CDT Sat Jul 29 2006

System image file is "flash:/c3750-ipbase-mz.122-25.SEB4/c3750-ipbase-mz.122-25

SEB4.bin"

cisco WS-C3750G-16TD (PowerPC405) processor (revision G0) with 118784K/12280K b

tes of memory.

Processor board ID CAT1017N1PT

Last reset from power-on

2 Virtual Ethernet interfaces

136 Gigabit Ethernet interfaces

2 Ten Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address : 00:17:E0:47:F8:00

Motherboard assembly number : 73-9143-09

Power supply part number : 341-0045-01

Motherboard serial number : CAT1016149A

Power supply serial number : LIT10070EBD

Model revision number : G0

Motherboard revision number : A0

Model number : WS-C3750G-16TD-S

System serial number : CAT1017N1PT

Top Assembly Part Number : 800-24591-04

Top Assembly Revision Number : C0

CLEI Code Number : COM1D10ARB

Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image

------ ----- ----- ---------- ----------

* 1 17 WS-C3750G-16TD 12.2(25)SEB4 C3750-IPBASE-M

2 17 WS-C3750G-16TD 12.2(25)SEB4 C3750-IPBASE-M

3 52 WS-C3750G-48TS 12.2(25)SEB4 C3750-IPBASE-M

4 52 WS-C3750G-48TS 12.2(25)SEB4 C3750-IPBASE-M

Switch 02

---------

Switch Uptime : 1 year, 13 weeks, 3 days, 19 hours, 5 minutes

Base ethernet MAC Address : 00:17:E0:4D:B3:00

Motherboard assembly number : 73-9143-09

Power supply part number : 341-0045-01

Motherboard serial number : CAT1016149D

Power supply serial number : LIT10070ECB

Model revision number : G0

Motherboard revision number : A0

Model number : WS-C3750G-16TD-S

System serial number : CAT1017N1S8

Top assembly part number : 800-24591-04

Top assembly revision number : C0

CLEI Code Number : COM1D10ARB

Switch 03

---------

Switch Uptime : 1 year, 13 weeks, 3 days, 19 hours, 17 minute

Base ethernet MAC Address : 00:18:18:42:08:80

Motherboard assembly number : 73-9366-08

Power supply part number : 341-0107-01

Motherboard serial number : FOC10190GFQ

Power supply serial number : AZS101201Q7

Model revision number : C0

Motherboard revision number : A0

Model number : WS-C3750G-48TS-S

System serial number : FOC1019Y3Y0

SFP Module assembly part number : 73-7757-03

SFP Module revision number : A0

SFP Module serial number : CAT10160WDS

Top assembly part number : 800-25409-02

Top assembly revision number : B0

Version ID : V02

CLEI Code Number : CNMWU00ARB

Switch 04

---------

Switch Uptime : 1 year, 13 weeks, 3 days, 19 hours, 20 minute

Base ethernet MAC Address : 00:18:18:42:00:80

Motherboard assembly number : 73-9366-08

Power supply part number : 341-0107-01

Motherboard serial number : FOC10182QNZ

Power supply serial number : AZS101201Q8

Model revision number : C0

Motherboard revision number : A0

Model number : WS-C3750G-48TS-S

System serial number : FOC1019Y3X9

SFP Module assembly part number : 73-7757-03

SFP Module revision number : A0

SFP Module serial number : CAT10160V68

Top assembly part number : 800-25409-02

Top assembly revision number : B0

Version ID : V02

CLEI Code Number : CNMWU00ARB

Configuration register is 0xF

2 REPLIES

Re: Single flash for switches in stack

Hi

You should be able the do a sh flash2 and see the image version

If it's not there, the switch will continue working but will not boot if reseted

You must always have a valid image on every switch in the stack

Please rate helpful post

Purple

Re: Single flash for switches in stack

No each switch has its own image in its own flash , to look at it do the following.

show flash1: Switch 1

show flash2: Switch 2

show flash3: Switch 3

etc , etc , etc.............

213
Views
0
Helpful
2
Replies
CreatePlease login to create content