This might be a new geek record Post: 60352

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The Lounge What is on Your Mind? This might be a new geek record Post 60352 by zazzybob on Saturday 15th of January 2005 05:45:01 PM

01-15-2005

Registered User

Quote:

Originally Posted by 98_1LE

Will 512MB be enough RAM? Would it be worth it to splurge and juice it to 1GB?

512Mb should be adequate - it really depends on what you're going to be doing with the system.... I run SUSE 8.2 Pro on my laptop with only 256Mb RAM, and it does me well for day-to-day stuff (programming, remote admin, web development) - the RAM is always almost completely in use, and swap activity is very minimal. If you're going to be doing anything really intensive (video editing and the like), and you've got the $/� to do it, then a gig of RAM is never going to be a bad thing.

We've had big problems with IDE RAID at work (this is on a Windows 2003 Terminal Server however) - some of the new HP Proliants come with a two disk mirror - and the RAID tools provided by HP are useless, you end up having to bring the entire server down, going into the RAID setup and rebuild whilst the servers offline - defeats the purpose totally - it'd be just as easy to fit a new disk and restore from a backup - it'd be twice as fast too.... I've played around with software RAID under SUSE before, and I've got a little article on my site here although this will most probably be irrelevant for your purposes as the RAID board should take care of RAID management and control anyway.....

Cheers
ZB

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LEARN ABOUT HPUX

vxr5check

vxr5check(1M)															     vxr5check(1M)

NAME

       vxr5check - verify RAID-5 volume parity

SYNOPSIS

       /etc/vx/bin/vxr5check [-i | -v] [-g diskgroup] volume

DESCRIPTION

       The vxr5check utility compares the parity of each stripe of a RAID-5 volume specified by volume.  vxr5check reads the data for each stripe,
       generates the parity for this stripe, and compares this parity with the existing parity.

       vxr5check can be run against the entire RAID-5 volume, or incrementally on RAID-5 stripe boundaries, by specifying the -i option.

OPTIONS

       -g diskgroup
		 Specifies the Veritas Volume Manager (VxVM) disk group name for the RAID-5 volume name for verification.  If this option  is  not
		 specified, the default disk group is determined using the rules given in the vxdg(1M) manual page.

       -i	 Verifies the RAID-5 volume incrementally per stripes.	If a parity mismatch is found, that stripe location is displayed.

       -v	 Verbose output for the incremental vxr5check verification.  The verbose option outputs each stripe number that is being verified.

OUTPUT FORMAT

       In  verbose  mode and incremental mode, summary reports for each stripe of the RAID-5 volume are printed in output records.  If an error is
       returned for a stripe, then an error message and stripe number are displayed.  In non-verbose mode, if an error is returned, an error  mes-
       sage is displayed.

       If a parity mismatch error is determined on a stripe, vxr5check exits on that stripe and does not continue for the remaining stripes in the
       RAID-5 volume.

FILES

       /usr/lib/vxvm/bin/vxr5vrfy    The utility that vxr5check calls to perform RAID-5 parity verification operations for  the  specified  RAID-5
				     volume.

EXIT CODES

       The  vxr5check  utility exits with a non-zero status if the attempted operation fails.  A non-zero exit code is not a complete indicator of
       the problems encountered, but rather denotes the first condition that prevented further execution of the utility.

       See vxintro(1M) for a list of standard exit codes.

NOTES

       Do not run vxr5check on a volume that is in degraded mode.

SEE ALSO

       vxevac(1M), vxintro(1M), vxmend(1M), vxvol(1M)

VxVM 5.0.31.1							    24 Mar 2008 						     vxr5check(1M)