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01-16-2008, 08:15 AM
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 overwrite solaris with netback client Hi, is it possible to overwrite a running solaris with the netbackup client? Imagine the following situation: Netbackup does full system backups everyday. Also a flash archive is made every couple of months (so maybe it doesn't contain the latest patches). Some day the filesystem crashes beyond repair and the system is jumpstarted with the flash archive (JET). The system is running (e.g. in runlevel 1) with netbackup client installed and networking up. Is it now possible to tell netbackup to overwrite everything on the system (exlcuding itself) and to delete obsolete files? I think if netbackup deletes the files first before writing them, there should be no problem. The system is running solaris 8 w/patches and vxvm/ufs on the local volumes. I know there's the possibility to net boot a mini solaris image with netbackup client, but I want to use JET, as this is already configured for all machines. Regards Andreas -- I am root. If you see me laughing, you better have a backup.      |
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01-16-2008, 08:15 AM
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| Re: overwrite solaris with netback client In article <slrnctt31q.bb.agw@supersonic-usenet.ruhr.de>, Andreas Wohlfeld <agw@supersonic.ruhr.de> writes: > > Hi, > > is it possible to overwrite a running solaris with the netbackup client? > > Imagine the following situation: > Netbackup does full system backups everyday. Also a flash archive is made > every couple of months (so maybe it doesn't contain the latest patches). > > Some day the filesystem crashes beyond repair and the system is jumpstarted > with the flash archive (JET). > The system is running (e.g. in runlevel 1) with netbackup client installed > and networking up. Is it now possible to tell netbackup to overwrite > everything on the system (exlcuding itself) and to delete obsolete files? > > I think if netbackup deletes the files first before writing them, there > should be no problem. The system is running solaris 8 w/patches and vxvm/ufs > on the local volumes. > > I know there's the possibility to net boot a mini solaris image with > netbackup client, but I want to use JET, as this is already configured for > all machines. > > Regards > Andreas > In most cases overwriting a running system would succeed, but in rare cases library patches could crash a running dynamically linked program. With netbackup the critical program and libraries are IMHO: ldd /usr/openv/netbackup/bin/tar libsocket.so.1 => /usr/lib/libsocket.so.1 libnsl.so.1 => /usr/lib/libnsl.so.1 libsec.so.1 => /usr/lib/libsec.so.1 libdl.so.1 => /usr/lib/libdl.so.1 libc.so.1 => /usr/lib/libc.so.1 libmp.so.2 => /usr/lib/libmp.so.2 /usr/platform/`uname -i`/lib/libc_psr.so.1 Therefore, I have only restored certain parts of a running system. A more efficient strategy is to daily recreate the flash archive, and backup this, too (so in case of a broken archive one can redo the flash-install from an older archive). -- Michael Tosch IT Specialist Managed Services Germany Hewlett-Packard GmbH Phone: +49 2407 575 313 Mail: michael.tosch:hp.com |
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01-16-2008, 08:15 AM
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| Re: overwrite solaris with netback client Michael Tosch wrote: > A more efficient strategy is to daily recreate the flash archive, > and backup this, too (so in case of a broken archive one can redo > the flash-install from an older archive). > Ok, thanks. I'm not sure if a daily flash archive is possible. Also you'll never know if it is broken, unless you test it. It would also make the regular netbackup system backup somehow obsolete. Do you have (by chance) any links to recommended patch-levels for flar_create on Solaris 8? -- I am root. If you see me laughing, you better have a backup. |
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