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Quick Easy Question


Just want to double check my understanding...

given this output from a sh ver, how much DRAM and FLASH does this switch have?

de01m-br11#sh ver
Cisco IOS Software, s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXI2a, RELEASE SOFTWARE (fc2)
Technical Support:
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 02-Sep-09 00:59 by prod_rel_team

ROM: System Bootstrap, Version 12.2(17r)SX6, RELEASE SOFTWARE (fc1)

de01m-br11 uptime is 1 week, 4 hours, 23 minutes
Uptime for this control processor is 1 week, 4 hours, 23 minutes
Time since de01m-br11 switched to active is 1 week, 4 hours, 22 minutes
System returned to ROM by  power cycle at 08:25:52 UTC Thu Jun 10 2010 (SP by power on)
System image file is "sup-bootdisk:s72033-advipservicesk9_wan-mz.122-33.SXI2a.bin"
Last reload reason: Reload Command

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cisco WS-C6509-E (R7000) processor (revision 1.5) with 983008K/65536K bytes of memory.
Processor board ID SMG1418N04Y
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
13 Virtual Ethernet interfaces
130 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


6 Replies 6

Cisco Employee
Cisco Employee


This line tells you about DRAM and Flash memory size.

cisco WS-C6509-E (R7000) processor (revision 1.5) with 983008K/65536K bytes of memory.

You have 1 GB memory and 64 MB bootflash on board.

Use "dir all-systems" or "show file systems" to check all external and internal FLASH disks on your device.



The reason Im askign is that, according to Ciscos IOS download advisor, this version of software requires 512 MB of DRAM and 512 MB of Flash.

So, we have 1G of DRAM, but only 64 MB of flash....

So how is it that the switch shipped with this IOS version?

What am I missing?

Hello Joe,

>> System image file is "sup-bootdisk:s72033-advipservicesk9_wan-mz.122-33.SXI2a.bin"

the image is in an internal flash named sup-bootdisk on the supervisor

according to software center the size of this image is :

Size: 98574.76 KB  (100940548 bytes)

Minimum Memory:                                                                   DRAM:512                                                                  MB                                                               Flash:512                                                                  MB

that couldn't be stored in a 64 MB flash so there is another flash in the system use dir /all as it has been suggested

Hope to help



OK, so with this line:

cisco WS-C6509-E (R7000) processor (revision 1.5) with 983008K/65536K bytes of memory.

There is 983 MB of DRAM and 65 MB of FLASH.

Also, when I do a dir sup-bootdisk: - that is showing me the onboard flash on the Supervisor, which is in addition to the 65MB.

All this correct?

Lastly, where then is the 65MB of FLASH located, if not on the SUP module?



Yes. All Correct.

You can find out where is 65MB of flash by "sh file systems" or "dir all-sys".

Below is an example from SUP32

----------------- 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:   ------> 65MB of flash
             -             -   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:


Thank you.....appreciate your help.

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