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Top Forums UNIX for Advanced & Expert Users AIX + disk redundency input needed Post 5946 by Optimus_P on Monday 27th of August 2001 04:07:26 PM
Old 08-27-2001
AIX + disk redundency input needed

OK guys & gals this is the issue: i am trying to sort out all the disks in all of our AIX servers.

12 hdisks w/ mirroring (so only 6 disks in uses @ any time)

2 volume groups (rootvg, vg1)

this does include muliple informix databases and misc. data.

Do you think it would be wise to break the mirror and go with a striping w/ parity? or should i stick w/ the mirroring as it is right now?

Backups (level 0) are done on all Logical Volumes (filesystems) nightly. Data loss is not permitted. Can i have some of your guys input as to what you think would be best.

I want to lean toward striping w/ parity so if a disk fails i can swap it out on the fly and lose no data. and gain some disk space.

Last edited by Optimus_P; 08-27-2001 at 05:13 PM..
 

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LVSCAN(8)						      System Manager's Manual							 LVSCAN(8)

NAME
lvscan - scan (all disks) for Logical Volumes SYNOPSIS
lvscan [-a|--all] [-b|--blockdevice] [-d|--debug] [-h|--help] [--ignorelockingfailure] [-P|--partial] [-v|--verbose] DESCRIPTION
lvscan scans all known volume groups or all supported LVM block devices in the system for defined Logical Volumes. The output consists of one line for each Logical Volume indicating whether or not it is active, a snapshot or origin, the size of the device and its allocation policy. Use lvs(8) or lvdisplay(8) to obtain more-comprehensive information about the Logical Volumes. OPTIONS
See lvm(8) for common options. --all Include information in the output about internal Logical Volumes that are components of normally-accessible Logical Volumes, such as mirrors, but which are not independently accessible (e.g. not mountable). For example, after creating a mirror using lvcreate -m1 --mirrorlog disk, this option will reveal three internal Logical Volumes, with suffixes mimage_0, mimage_1, and mlog. -b, --blockdevice This option is now ignored. Instead, use lvs(8) or lvdisplay(8) to obtain the device number. SEE ALSO
lvm(8), lvcreate(8), lvdisplay(8) lvs(8) Sistina Software UK LVM TOOLS 2.02.105(2)-RHEL7 (2014-03-26) LVSCAN(8)
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