10-25-2006
Raid help for new sys admin
Hi,
I have a Sunfire v240 with 4 72GB internal disks (drive 0 is the system disk).
Scratch the following ( Revised requirements below)
I need to set up a Raid using the remaining 3 disks for a Oracle database, but don't know how to do it (or the size of the database). I don't know if setting up the Raid will use one of the disks as parity or not, so details would help. I've read some of the threads, but don't know which one is better, Raid 0 +1, Raid 1 + 0, or another method.
The server came pre-installed with Solaris 9 and I don't know if it came with LVM (or how to access it if it does).
Thanks in advance.
Revised info:
My customer said they want dr0(system disk) mirrored to dr1, and dr2 mirrored to dr3, instead of the Raid.
Last edited by antalexi; 10-25-2006 at 05:18 PM..
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LEARN ABOUT REDHAT
lvmdiskscan
LVMDISKSCAN(8) System Manager's Manual LVMDISKSCAN(8)
NAME
lvmdiskscan - scan for all disks / multiple devices / partitions available
SYNOPSIS
lvmdiskscan [-d|--debug] [-h|--help] [-l|--lvmpartitions] [-v|--verbose]
DESCRIPTION
To give an overview about online peripherals usable to LVM, lvmdiskscan scans all SCSI, (E)IDE disks, multiple, loop and network block
devices in the system and lists them on standard output with name, size and type (text/hex). The size is the real device size, not the size
stored in the VGDA (See pvcreate(8) ) for details.
OPTIONS
-d/--debug
Enables additional debugging output (if compiled with DEBUG).
-h, --help
Print a usage message on standard output and exit successfully.
-l, --lvmpartition
Gives an overview about all LVM system identified partitions only.
-v, --verbose
Gives verbose runtime information about lvmdiskscan's activities.
DIAGNOSTICS
lvmdiskscan returns an exit code of 0, if disks / multiple devices / partitions where found and > 0 for error:
1 no special files found
2 no disks / multiple devices / disk partitions found
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), pvcreate(8), pvdisplay(8), pvscan(8)
AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com>
Heinz Mauelshagen LVM TOOLS LVMDISKSCAN(8)