Checking the Flash of SUP 32 in 7606.

Unanswered Question


I have SUP32 installed in cisco 7606 router and I want to check the memory of Flash in SUP32.

Could you please suggest me how to check.

----------------- show file systems ------------------

File Systems:

       Size(b)       Free(b)      Type  Flags  Prefixes
             -             -    opaque     rw   system:
             -             -    opaque     rw   tmpsys:
             -             -    opaque     ro   flexwan-fpd:
*   1024589824     977829888      disk     rw   disk0:
             -             -      disk     rw   disk1:
     512114688     343441408      disk     rw   sup-bootdisk: sup-bootflash:
     129913290             0    opaque     ro   sup-microcode:
             0      95240624    opaque     wo   sup-image:
        129004        128388     nvram     rw   const_nvram:
             -             -    opaque     rw   null:
             -             -    opaque     ro   tar:
             -             -   network     rw   tftp:
             -             -    opaque     wo   syslog:
       1964024       1951424     nvram     rw   nvram:
      65536000      65500284     flash     rw   bootflash:
             -             -   network     rw   rcp:
             -             -   network     rw   ftp:
             -             -   network     rw   http:
             -             -   network     rw   scp:
             -             -   network     rw   https:
             -             -    opaque     ro   cns:
             -             -     flash     rw   sami#1-fs:
             -             -     flash     rw   sami#2-fs:

Thanks in advance.

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Brandon Lynch Thu, 08/05/2010 - 06:07
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Hey Pulkit,

It's not clear to me exactly what you want to check.  Are you wanting to check the available memory of a certain file system or just what is contained within one of them?  The flash that is local to the SUP is 'sup-bootdisk' and 'bootflash'.  To check each of those, simply issue -

show sup-bootdisk:


show bootflash:

Let me know if this is what you're checking for.


Brandon Lynch Thu, 08/05/2010 - 06:50
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Hey Pulkit,

The external flash memory is located in either disk0: or disk1: of the SUP depending on which slot the flash card has been installed in.  In this case, it's disk0: -

*   1024589824     977829888      disk     rw   disk0:

You currently have a 1GB flash card installed there (as seen by the number on the far left which designates the 'Size').  If you want to match them up, you'll need to order another 1GB card for the standby.  I hope this answers your question.

Also, for the record and for your reference, you have 512MB of flash on the SP of the SUP (sup-bootdisk) and 64MB of flash on the RP (bootflash) -

512114688     343441408      disk     rw   sup-bootdisk: sup-bootflash:

65536000      65500284     flash     rw   bootflash:

Let me know if that clears it up.



Attaching the Show version.

----------------- show version ------------------

Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVENTERPRISEK9-M), Version 12.2(33)SRD3, RELEASE SOFTWARE (fc3)
Technical Support:
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Thu 10-Sep-09 22:51 by prod_rel_team

ROM: System Bootstrap, Version 12.2(17r)SX5, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVENTERPRISEK9-M), Version 12.2(33)SRD3, RELEASE SOFTWARE (fc3)

BSNL-Cochin_HA uptime is 17 weeks, 2 days, 20 hours, 27 minutes
Uptime for this control processor is 17 weeks, 2 days, 20 hours, 18 minutes
System returned to ROM by reload at 10:01:50 UTC Tue Mar 23 2010 (SP by reload)
System restarted at 16:01:53 IST Mon Apr 5 2010
System image file is "sup-bootdisk:c7600s72033-adventerprisek9-mz.122-33.SRD3.bin"
Last reload type: Normal Reload
Last reload reason: Reason unspecified

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to
[email protected].

cisco CISCO7606 (R7000) processor (revision 1.0) with 458720K/65536K bytes of memory.
Processor board ID FOX1333GBPC
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
2 Virtual Ethernet interfaces
34 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.

65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102

Brandon Lynch Thu, 08/05/2010 - 10:14
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Identical DRAM is necessary to run in a fully redundant SSO environment.  If the DRAM amounts are mismatched between the 2 SUPs, you may receive an error similar to the following -

%PFREDUN-4-PHYSMEM_MISMATCH:  Asymmetrical redundant configuration: Active [chars] has ([int]/[int]K)  memory, Standby has ([int]/[int]K)

This error message is detailed at the following link -

As far as the on-board flash sizes, these don't necessarily need to be the same but it is good practice to have everything synchronized between both SUPs to avoid any headaches should a SUP switchover occur or be required. The CF card size doesn't have to be the same size either but again, it's good practice to have this synced up.  As far as removing the flash card, because the IOS is installed in DRAM of the SUP on boot-up, it's OK to remove the flash card during normal operation with the card up.  Keep in mind, however, that if your only IOS image is stored on it and you're booting from it, if the SUP goes down without it installed, you will be stuck in ROMMON.



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