Para fazer uma backup da sua flash inteira para o servidor tftp podemos utilizar o utilitário archive. Segue comando abaixo.

nemesis#archive tar /create tftp://192.168.10.186/flash.tar flash:
!!
archiving c2950-i6k2l2q4-mz.121-22.EA9 (3708032 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
archiving vlan.dat (736 bytes)
archiving env_vars (41 bytes)
archiving config.text (3204 bytes)!
archiving html (directory)
archiving html/ximages (directory)
archiving html/ximages/question.gif (405 bytes)!
archiving html/ximages/confirm.gif (515 bytes)
archiving html/ximages/top.gif (141 bytes)
archiving html/ximages/downleft.gif (53 bytes)
archiving html/ximages/arrow.gif (874 bytes)!
archiving html/ximages/botleft.gif (62 bytes)
archiving html/ximages/download.gif (1287 bytes)
archiving html/ximages/spacer.gif (49 bytes)
archiving html/ximages/fatal_error.gif (271 bytes)!
archiving html/ximages/logo.gif (974 bytes)
archiving html/ximages/pixel.gif (49 bytes)
archiving html/ximages/warning.gif (296 bytes)
archiving html/ximages/green.gif (879 bytes)!
archiving html/ximages/title_help.gif (247 bytes)
archiving html/ximages/upleft2.gif (66 bytes)
archiving html/ximages/text_start.gif (239 bytes)
archiving html/ximages/corner_ur_7.gif (53 bytes)
archiving html/ximages/upright.gif (838 bytes)!
archiving html/ximages/text_print.gif (177 bytes)
archiving html/ximages/ip_fig1.gif (6042 bytes)!
archiving html/ximages/dkgreen.gif (869 bytes)!
archiving html/ximages/upright_dot.gif (43 bytes)
archiving html/ximages/ip_fig3.gif (9178 bytes)!!
archiving html/ximages/borderback.gif (146 bytes)
archiving html/ximages/upleft1.gif (51 bytes)
archiving html/ximages/print_on.gif (111 bytes)
archiving html/ximages/button_corner.gif (110 bytes)
archiving html/ximages/text_glossary.gif (176 bytes)!
archiving html/ximages/yellow.gif (881 bytes)
archiving html/ximages/glossary_on.gif (118 bytes)
archiving html/ximages/11_upright.gif (61 bytes)
archiving html/ximages/left_bkg.gif (146 bytes)!
archiving html/ximages/downleft1.gif (54 bytes)
archiving html/ximages/bottom.gif (149 bytes)
archiving html/ximages/upright2.gif (49 bytes)
archiving html/ximages/ip_fig2.gif (5097 bytes)!
archiving html/ximages/28_upright.gif (110 bytes)
archiving html/ximages/glossary_off.gif (118 bytes)!
archiving html/ximages/print_off.gif (111 bytes)
archiving html/cms_boot.jar (154860 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
archiving html/cms_splash.gif (22131 bytes)!!!!!
archiving html/start.html (576 bytes)
archiving html/cms_13.html (510 bytes)
archiving html/custom_cms.html (2441 bytes)!
archiving html/test.htm (2301 bytes)
archiving html/not_supported.html (1392 bytes)!
archiving html/cluster.html (2822 bytes)!
archiving html/err.html (152 bytes)
archiving html/appsui.js (3092 bytes)!
archiving html/stylesheet.css (3364 bytes)
archiving html/forms.js (11521 bytes)!!!
archiving html/xhome.htm (25035 bytes)!!!!!
archiving html/back-exp.htm (182 bytes)
archiving html/express-setup.htm (61957 bytes)!!!!!!!!!!!!
archiving html/doc.htm (22332 bytes)!!!!!
archiving html/tools.htm (21818 bytes)!!!!
archiving html/sitewide.js (10627 bytes)!!
archiving html/splash_screen.htm (1774 bytes)!
archiving html/troubleshooting_OS.htm (2851 bytes)!
archiving html/common.js (24978 bytes)!!!!!
archiving html/troubleshooting_CMSPlugin.htm (4830 bytes)!
archiving html/homepage.htm (605 bytes)
archiving html/ie_report.htm (21165 bytes)!!!!
archiving html/troubleshooting_JavaScript.htm (8893 bytes)!!
archiving html/net_report.htm (21107 bytes)!!!!
archiving html/cmsplugin.js (1216 bytes)!
archiving html/troubleshooting_Browser.htm (3704 bytes)!
archiving html/ie_page.htm (2097 bytes)
archiving html/ip_help.htm (11465 bytes)!!!
archiving html/es_help.htm (22604 bytes)!!!!
archiving html/tools_help.htm (13065 bytes)!!!
archiving html/home_help.htm (16098 bytes)!!!
archiving html/doc_help.htm (14118 bytes)!!!
archiving html/CiscoChartPanel.sgz (57732 bytes)!!!!!!!!!!!!
archiving html/Redirect.jar (1903 bytes)
archiving html/CMS.pfj (2019549 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
archiving html/images.sgz (192059 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
archiving html/help.sgz (526933 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
archiving html/distinfo.dat (276 bytes)
archiving html/cms_disc.sgz (46514 bytes)!!!!!!!!!
archiving private-config.text (1929 bytes)
%Error opening flash:/private-config.text (Permission denied)
nemesis#