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Solaris
solaris volume manager- stripe?
Post 302671965 by CJ007 on Sunday 15th of July 2012 11:11:00 AM
07-15-2012
Hii snchaudhari2,
I can clear your doubt:
1.)The volume which u have created is a concat/stripe volume bcoz ur using one disk only,
so der is no diff of concat or stripe.
2.)Difference comes when u will have two disks like:
Let me clear it with example,
U have two disks
c0t1d0s2
c0t1d0s4
Concatenation:
#metainit -f d1 2 1 c0t1d0s2 1 c0t1d0s4
It will create a concatenated volume d1,in which first c0t1d0s2 disk will full
and then c0t1d0s4 will full.
Striping:
#metainit -f d1 1 2 c0t1d0s2 c0t1d0s4
It will create a striped volume d1,in which data will transfer parallel to both disks.
I think this clears urs doubts ........
I can clear your doubt:
1.)The volume which u have created is a concat/stripe volume bcoz ur using one disk only,
so der is no diff of concat or stripe.
2.)Difference comes when u will have two disks like:
Let me clear it with example,
U have two disks
c0t1d0s2
c0t1d0s4
Concatenation:
#metainit -f d1 2 1 c0t1d0s2 1 c0t1d0s4
It will create a concatenated volume d1,in which first c0t1d0s2 disk will full
and then c0t1d0s4 will full.
Striping:
#metainit -f d1 1 2 c0t1d0s2 c0t1d0s4
It will create a striped volume d1,in which data will transfer parallel to both disks.
I think this clears urs doubts ........
This User Gave Thanks to CJ007 For This Post:
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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)