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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 [-b|--blockdevice] [-d|--debug] [-D|--disk] [-h|--help] [-v|--verbose] DESCRIPTION
lvscan scans all known volume groups or all supported LVM block devices in the system for defined logical volumes. OPTIONS -b, --blockdevice Adds the device major and minor numbers to the display of each logical volume. -d, --debug Enables additional debugging output (if compiled with DEBUG). -D, --disk Scan for logical volumes on disk(s) instead of getting the information from the kernel. -h, --help Print a usage message on standard output and exit successfully. -v, --verbose Gives verbose runtime information about lvscan's activities. --version Prints version number of tool and exits sucessfully. DIAGNOSTICS
lvscan returns an exit code of 0 for success and > 0 for error: 1 no volume groups found 2 invalid volume group name 3 error getting VGDA from kernel 95 driver/module not in kernel 96 invalid I/O protocol version 97 error locking logical volume manager 98 invalid lvmtab (run vgscan(8)) 99 invalid command line SEE ALSO
lvm(8), lvcreate(8), lvdisplay(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS LVSCAN(8)
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