I have two intel xeon servers running with SLES 10 on a cluster environment (Veritas Cluster 4.1 - 2 Node Cluster - Active Passive). Both the systems are having hardware RAID 1 for OS disk. Both the systems are having DVD writer.
I would like to take the OS backup on DVD which can be bootable in case both the hard disk fails. Is there any backup software which I can use to take the entire OS backup (4GB) on DVD? Can someone help me out to do this on SLES 10???
Hello,
Running AIX 7.1 7100-00-03-1115, trying to make a mksysb image to a dvd drive using mkdvd. My final command looks like this..
mkdvd -e -V rootvg -R -C /usr1/AIXADMIN/mkcd/cd_fs -I /usr1/AIXADMIN/mkcd/cd_images -M /usr1/AIXADMIN/mkcd/mksysbimage -d /dev/cd0 -Y
When i run this... (3 Replies)
Hello AIXians,
I have a corrupted file systems in my AIX server (6.1), which are /var, /home & /opt.
I tried many times to fix them using fsck but it gives me: 'Fatal I/O error'.
So I decided to restore them from bootable mksysb DVD (4 DVDs) after booting from these DVDs.
Every thing was... (0 Replies)
I am getting an error similar to this when I try to watch dvd's. Every program has a similar version of this.
unable to open the MRL 'dvd:///dev/dvd'For VLC I have found a way to fix it.
CD/DVD Drive not working VLC error (SOLVED) (Page 1) - Help & Support (Stable) - CrunchBang Linux Forums... (0 Replies)
i have an AIX server and planning to upgrade the operating system, before that i want to take a system backup which can be used in case of upgrade failure. i dont have NIM server t hold the mksysb backups. so i have the only option of taking the backup on DVD. i have the following optical drive... (5 Replies)
Can anyone give me a little clue on why the hard drive cache read timings on sles 9 is better then sles 11? The same hardware was used in both test. I even deleted the ata_generic module from initrd.
The speed difference is 10MB vs 5 MB
Thanks (1 Reply)
Trying to backup the VIOS system to DVD using the backupios command. The command completes and reports success yet there is nothing written to the DVD.
Hardware: Blade H series JS23/43
$ ioslevel
2.1.2.13-FP-22.1 SP-02
# lsdev -Cc cdrom
cd0 Available 2.1.2.3- USB DVD R/RW or RAM Drive
... (12 Replies)
cmdisklock(1m)cmdisklock(1m)NAME
cmdisklock - manage Serviceguard cluster lock devices.
SYNOPSIS
cmdisklock check path
cmdisklock [-f] reset path
DESCRIPTION
cmdisklock is a tool to check the current state of a Serviceguard cluster lock device. It can also be used to reset the state of the clus-
ter lock device. The need to reset the cluster lock device state could arise if the cluster lock device is replaced or becomes corrupt.
A cluster lock device can be either an HP-UX LVM cluster lock or a cluster lock LUN device. HP-UX LVM cluster locks exist only on a disk
in an LVM volume group. Cluster lock LUNs exist only on disks dedicated to cluster lock. cmdisklock is useful for checking either type of
cluster lock and for re-initializing cluster lock LUN devices after a failure or corruption.
NOTE
To restore an HP-UX LVM cluster lock, use vgcfgrestore. cmdisklock will fail until vgcfgrestore is run, and cmdisklock is unnecessary as
long as vgcfgbackup was done after the cluster lock was initialized. See the Managing Serviceguard manual for details.
The syntax of the path option depends on the type of lock. For HP-UX LVM cluster lock disks, the syntax is VG:PV (for example:
/dev/vglock:/dev/dsk/c0t0d2). For cluster lock LUN disks, the path is the disk device path. For example, /dev/sdd1 (on Linux) or
/dev/dsk/c0t1d2 (on HP-UX).
Options
cmdisklock supports the following options:
check Check the current state of the cluster lock device and report the results.
reset Reset (initialize) the state of the cluster lock device. This operation should only be performed on a cluster lock
LUN device. For HP-UX LVM cluster lock, use vgcfgrestore as documented in the Managing Serviceguard manual. After
performing a reset, a check can be used to verify that the lock is cleared.
EXAMPLES
If the cluster lock LUN device becomes corrupted and the cluster is up, messages like the following will appear in syslog.
Mar 15 12:20:41 usb cmdisklockd[17599]: WARNING: Cluster lock LUN /dev/dsk/c0t1d2 is corrupt: bad label. Until this situation is cor-
rected, a single failure could cause all nodes in the cluster to crash.
Mar 15 12:20:41 usb cmdisklockd[17599]: After ensuring that all active nodes in the cluster have logged this message, run 'cmdisklock reset
/dev/dsk/c0t1d2' to repair
Mar 15 12:20:41 usb cmdisklockd[17599]: Cluster lock disk /dev/dsk/c0t1d2 is inaccessible
Once the above messages appear in syslog on all running nodes, the following command will re-initialize the cluster lock LUN:
ucd:/> cmdisklock reset /dev/dsk/c0t1d2
WARNING: Cluster lock LUN /dev/dsk/c0t1d2 is corrupt: bad label. Until this situation is corrected, a single failure could cause all nodes
in the cluster to crash.
After ensuring that all active nodes in the cluster have logged this message, run 'cmdisklock reset /dev/dsk/c0t1d2' to repair
/dev/dsk/c0t1d2 is inaccessible
Resetting cluster lock device /dev/dsk/c0t1d2
Cluster lock reset completed
/dev/dsk/c0t1d2 is accessible
cleared
After the lock is restored, a message like the following appears in syslog:
Mar 15 12:23:11 usb cmdisklockd[17599]: Cluster lock disk /dev/dsk/c0t1d2 is accessible
WARNINGS
CAUTION
For cluster lock LUN, reset is a potentially destructive operation. While cmdisklock checks for known volume manager and file system use
(overridden by -f), it does not validate that the device to be reset is actually used by any cluster. If -f is used on the wrong device
file, loss of data may result.
CAUTION
Care should be taken when doing a reset when the cluster is active as there is a remote possibility that the cluster will partition right
when this command is run and both nodes could end up thinking they have successfully acquired the lock. To avoid this situation, make sure
cmcld has logged a message in syslog on all running nodes saying the device is inaccessble, before performing a reset. Note that it is
safe to run cmdisklock when the cluster is down.
RETURN VALUE
cmdisklock returns the following values:
0 Successful completion.
1 The disk is inaccessible or is not recognized as a cluster lock.
AUTHOR
cmdisklock was developed by HP.
SEE ALSO cmapplyconf(1m), cmviewcl(1m), vgcfgbackup(1m), vgcfgrestore(1m)
Requires Optional Serviceguard Software cmdisklock(1m)