Single flash for switches in stack

Unanswered Question
Nov 1st, 2007

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


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dominic.caron Thu, 11/01/2007 - 12:21

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



glen.grant Thu, 11/01/2007 - 16:42

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.............

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