Note: This article applies to Mac OS X 10.2 or later and Mac OS X Server 10.2 and later. Occasionally, Disk Utility may report that a software mirror has become degraded and that it must be rebuilt. In such a situation, one drive has become out of sync with another. To rebuild the software mirror, follow these steps below. Warning: Before proceeding, you must back up of all data, because failure to follow the steps correctly may result in data loss.
Hello,
I am trying to convert a single-drive Centos 7.2 installation with LVM into a two-disk mdadm mirror with mrrored LVM. I was able to follow the excellent instructions at:
http://www.dgoradia.com/creating-a-raid1-mirrored-on-an-existing-centos-on-lvm/and did create a two-disk mirror... (1 Reply)
SCO UNIX 5.0.7, IBM x-series 235 w/ LSI controller. I can't for the life of me find any documentation for an OS level application, or an entry in scoadmin to rebuild the array or even find logs within the OS.
Is my only option to rebuild the array from the BIOS tool before boot up? (2 Replies)
Server Model: T5120 with 146G x4 disks.
OS: Solaris 10 - installed on c1t0d0.
Plan to use software raid (veritas volume mgr) on c1t2d0 disk.
After format and label the disk, still not able to detect using vxdiskadm.
Question:
Should I remove the hardware raid on c1t2d0 first?
My... (4 Replies)
Hi,
I have an Ubuntu system which I have an faulted mirror.
I trying to replace the disk, but I'm stuck on that it boots and only showing GRUB
GRUB
## ## End Default Options ##
title Ubuntu 8.04.4 LTS, kernel 2.6.24-26-server
root (hd0,0)
kernel ... (0 Replies)
Hi ,
I am new to SVM .when i try to learn RAID 1 , first they are creating two RAID 0 strips through
metainit d51 1 1 c0t0d0s2
metainit d52 1 1 c1t0d0s2
In the next step
metainit d50 -m d51
d50: Mirror is setup
next step is
metaattach d50 d52
d50 : submirror d52 is... (7 Replies)
Hi there,
I'm not sure if this is possible, but here is what I'd like to do..
I have an existing 160GB drive in my Redhat 9.0 server that I would like to add an additional 160GB drive to and create a mirrored RAID of the first disk to the new disk. I would like to do this without having to... (2 Replies)
CPMAC(1) BSD General Commands Manual CPMAC(1)NAME
/usr/bin/CpMac -- copy files preserving metadata and forks
SYNOPSIS
/usr/bin/CpMac [-rp] [-mac] source target
/usr/bin/CpMac [-rp] [-mac] source ... directory
DESCRIPTION
In its first form, the /usr/bin/CpMac utility copies the contents of the file named by the source operand to the destination path named by
the target operand. This form is assumed when the last operand does not name an already existing directory.
In its second form, /usr/bin/CpMac copies each file named by a source operand to a destination directory named by the directory operand. The
destination path for each operand is the pathname produced by the concatenation of the last operand, a slash, and the final pathname compo-
nent of the named file.
The following options are available:
-r If source designates a directory, /usr/bin/CpMac copies the directory and the entire subtree connected at that point. This option also
causes symbolic links to be copied, rather than indirected through, and for /usr/bin/CpMac to create special files rather than copying
them as normal files. Created directories have the same mode as the corresponding source directory, unmodified by the process' umask.
-p Causes /usr/bin/CpMac to preserve in the copy as many of the modification time, access time, file flags, file mode, user ID, and group
ID as allowed by permissions.
-mac Allows use of HFS-style paths for both source and target. Path elements must be separated by colons, and the path must begin with a
volume name or a colon (to designate current directory).
NOTES
The /usr/bin/CpMac command does not support the same options as the POSIX cp command, and is much less flexible in its operands. It cannot
be used as a direct substitute for cp in scripts.
As of Mac OS X 10.4, the cp command preserves metadata and resource forks of files on Extended HFS volumes, so it can be used in place of
CpMac. The /usr/bin/CpMac command will be deprecated in future versions of Mac OS X.
SEE ALSO cp(1)MvMac(1)Mac OS X April 12, 2004 Mac OS X
